{"id":10008085,"date":"2023-07-13T09:00:28","date_gmt":"2023-07-13T01:00:28","guid":{"rendered":"https:\/\/ityet.com\/?p=10008085"},"modified":"2023-07-13T09:00:28","modified_gmt":"2023-07-13T01:00:28","slug":"go%e7%89%b9%e6%ae%8a%e7%9a%84%e8%af%ad%e8%a8%80%e7%89%b9%e6%80%a7","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008085","title":{"rendered":"Go\u7279\u6b8a\u7684\u8bed\u8a00\u7279\u6027"},"content":{"rendered":"<blockquote><p>\u6458\u8981\uff1a\u672c\u6587\u7531\u8461\u8404\u57ce\u6280\u672f\u56e2\u961f\u4e8e\u601d\u5426\u539f\u521b\u5e76\u9996\u53d1\u3002\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\uff1a<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=Lb2ye2cD%2FtMDASqDuXIlzg%3D%3D.38HOuK%2FAHAjZNQ0vAaxshr9rtp%2F1Iko5d0AXwIv7kAw%3D\" rel=\"noopener noreferrer\">\u8461\u8404\u57ce\u5b98\u7f51<\/a>\uff0c\u8461\u8404\u57ce\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e13\u4e1a\u7684\u5f00\u53d1\u5de5\u5177\u3001\u89e3\u51b3\u65b9\u6848\u548c\u670d\u52a1\uff0c\u8d4b\u80fd\u5f00\u53d1\u8005\u3002<\/p><\/blockquote>\n<h2>\u524d\u8a00<\/h2>\n<p>\u672c\u6587\u4e3b\u8981\u901a\u8fc7\u503c\u4f20\u9012\u548c\u6307\u9488\u3001\u5b57\u7b26\u4e32\u3001\u6570\u7ec4\u3001\u5207\u7247\u3001\u96c6\u5408\u3001\u9762\u5411\u5bf9\u8c61\uff08\u5c01\u88c5\u3001\u7ee7\u627f\u3001\u62bd\u8c61\uff09\u548c\u8bbe\u8ba1\u54f2\u5b667\u4e2a\u65b9\u9762\u6765\u4ecb\u7ecdGO\u8bed\u8a00\u7684\u7279\u6027\u3002<\/p>\n<p>\u6587\u7ae0\u76ee\u5f55\uff1a<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#1\" rel=\"noopener noreferrer\">1.Go\u7684\u524d\u4e16\u4eca\u751f<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#11\" rel=\"noopener noreferrer\">1.1Go\u8bed\u8a00\u8bde\u751f\u7684\u8fc7\u7a0b<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#12\" rel=\"noopener noreferrer\">1.2\u9010\u6b65\u6210\u578b<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#13\" rel=\"noopener noreferrer\">1.3\u6b63\u5f0f\u53d1\u5e03<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#14\" rel=\"noopener noreferrer\">1.4 Go\u5b89\u88c5\u6307\u5bfc<\/a><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#2\" rel=\"noopener noreferrer\">2.GO\u8bed\u8a00\u7279\u6b8a\u7684\u8bed\u8a00\u7279\u6027<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#21\" rel=\"noopener noreferrer\">2.1\u503c\u4f20\u9012\u548c\u6307\u9488<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#22\" rel=\"noopener noreferrer\">2.2<strong>\u5b57\u7b26\u4e32<\/strong><\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#23\" rel=\"noopener noreferrer\">2.3\u6570\u7ec4<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#24\" rel=\"noopener noreferrer\">2.4\u5207\u7247<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#25\" rel=\"noopener noreferrer\">2.5<strong>\u96c6\u5408<\/strong><\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#26\" rel=\"noopener noreferrer\">2.6\u9762\u5411\u5bf9\u8c61<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#261\" rel=\"noopener noreferrer\">2.6.1\u5c01\u88c5<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#262\" rel=\"noopener noreferrer\">2.6.2\u7ee7\u627f<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#263\" rel=\"noopener noreferrer\">2.6.3\u62bd\u8c61<\/a><\/p>\n<p>&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#27\" rel=\"noopener noreferrer\">2.7\u8bbe\u8ba1\u54f2\u5b66<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#271\" rel=\"noopener noreferrer\">2.7.1. Go \u6ca1\u6709\u9ed8\u8ba4\u7684\u7c7b\u578b\u8f6c\u6362<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#272\" rel=\"noopener noreferrer\">2.7.2. Go \u6ca1\u6709\u9ed8\u8ba4\u53c2\u6570\uff0c\u540c\u6837\u4e5f\u6ca1\u6709\u65b9\u6cd5\u91cd\u8f7d<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#273\" rel=\"noopener noreferrer\">2.7.3. Go \u4e0d\u652f\u6301 Attribute<\/a><\/p>\n<p>&emsp;&emsp;<a target=\"_blank\" href=\"https:\/\/segmentfault.com\/a\/#274\" rel=\"noopener noreferrer\">2.7.4. Go \u6ca1\u6709 Exception<\/a><\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=J2hjE2dKZlUrLWQzx%2F417Q%3D%3D.pP3xZoAVtrcBs1nmLUyRb0DM%2BM8os25Kq010B7jx%2BY3ekFlytM6EE1rT5shV1qsf\" rel=\"noopener noreferrer\">Rob Pike<\/a> \u548c\u5f80\u5e38\u4e00\u6837\u542f\u52a8\u4e86\u4e00\u4e2a C++\u9879\u76ee\u7684\u6784\u5efa\uff0c\u6309\u7167\u4ed6\u4e4b\u524d\u7684\u7ecf\u9a8c\uff0c\u8fd9\u4e2a\u6784\u5efa\u5e94\u8be5\u9700\u8981\u6301\u7eed 1 \u4e2a\u5c0f\u65f6\u5de6\u53f3\u3002\u8fd9\u65f6\u4ed6\u5c31\u548c Google\u516c\u53f8\u7684\u53e6\u5916\u4e24\u4e2a\u540c\u4e8b <a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=rCZMYRU%2FTQRkDbo5K3D7Pw%3D%3D.ZzLHvyhnIqIUPgXSP06rm11lEfZVjbHxGM%2BXFZ98Ac%2Fg4KtXprjadHE97NuCPjtS\" rel=\"noopener noreferrer\">Ken Thompson<\/a> \u4ee5\u53ca <a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=nddIGmqmalyz3qbxBeZJGA%3D%3D.Ukra2ksuhoxMOJ%2Bb7oJEIkv1lA4EHAz%2Bwprp5eS5Lk08uGExtkOSQ0bLS6ZqbPQM\" rel=\"noopener noreferrer\">Robert Griesemer<\/a> \u5f00\u59cb\u5410\u69fd\u5e76\u4e14\u8bf4\u51fa\u4e86\u81ea\u5df1\u60f3\u641e\u4e00\u4e2a\u65b0\u8bed\u8a00\u7684\u60f3\u6cd5\u3002\u5f53\u65f6 Google \u5185\u90e8\u4e3b\u8981\u4f7f\u7528 C++\u6784\u5efa\u5404\u79cd\u7cfb\u7edf\uff0c\u4f46 C++\u590d\u6742\u6027\u5de8\u5927\u5e76\u4e14\u539f\u751f\u7f3a\u5c11\u5bf9\u5e76\u53d1\u7684\u652f\u6301\uff0c\u4f7f\u5f97\u8fd9\u4e09\u4f4d\u5927\u4f6c\u82e6\u607c\u4e0d\u5df2\u3002<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044004164\" alt=\"\" title=\"\"><\/p>\n<p>\u7b2c\u4e00\u5929\u7684\u95f2\u804a\u521d\u6709\u6210\u6548\uff0c\u4ed6\u4eec\u8fc5\u901f\u6784\u60f3\u4e86\u4e00\u95e8\u65b0\u8bed\u8a00\uff1a\u80fd\u591f\u7ed9\u7a0b\u5e8f\u5458\u5e26\u6765\u5feb\u4e50\uff0c\u80fd\u591f\u5339\u914d\u672a\u6765\u7684\u786c\u4ef6\u53d1\u5c55\u8d8b\u52bf\u4ee5\u53ca\u6ee1\u8db3 Google \u5185\u90e8\u7684\u5927\u89c4\u6a21\u7f51\u7edc\u670d\u52a1\u3002\u5e76\u4e14\u5728\u7b2c\u4e8c\u5929\uff0c\u4ed6\u4eec\u53c8\u78b0\u5934\u5f00\u59cb\u8ba4\u771f\u6784\u601d\u8fd9\u95e8\u65b0\u8bed\u8a00\u3002\u7b2c\u4e8c\u5929\u4f1a\u540e\uff0cRobert Griesemer \u53d1\u51fa\u4e86\u5982\u4e0b\u7684\u4e00\u5c01\u90ae\u4ef6\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044004165\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u53ef\u4ee5\u4ece\u90ae\u4ef6\u4e2d\u770b\u5230\uff0c\u4ed6\u4eec\u5bf9\u8fd9\u4e2a\u65b0\u8bed\u8a00\u7684\u671f\u671b\u662f\uff1a<strong>\u5728 C \u8bed\u8a00\u7684\u57fa\u7840\u4e0a\uff0c\u4fee\u6539\u4e00\u4e9b\u9519\u8bef\uff0c\u5220\u9664\u4e00\u4e9b\u8bdf\u75c5\u7684\u7279\u6027\uff0c\u589e\u52a0\u4e00\u4e9b\u7f3a\u5931\u7684\u529f\u80fd\u3002<\/strong>\u6bd4\u5982\u4fee\u590d Switch \u8bed\u53e5\uff0c\u52a0\u5165 import \u8bed\u53e5\uff0c\u589e\u52a0\u5783\u573e\u56de\u6536\uff0c\u652f\u6301\u63a5\u53e3\u7b49\u3002\u800c\u8fd9\u5c01\u90ae\u4ef6\uff0c\u4e5f\u6210\u4e86 Go \u7684\u7b2c\u4e00\u7248\u8bbe\u8ba1\u521d\u7a3f\u3002<\/p>\n<p>\u5728\u8fd9\u4e4b\u540e\u7684\u51e0\u5929\uff0cRob Pike \u5728\u4e00\u6b21\u5f00\u8f66\u56de\u5bb6\u7684\u8def\u4e0a\uff0c\u4e3a\u8fd9\u95e8\u65b0\u8bed\u8a00\u60f3\u597d\u4e86\u540d\u5b57Go\u3002\u5728\u4ed6\u5fc3\u4e2d\uff0c\u201dGo\u201d\u8fd9\u4e2a\u5355\u8bcd\u77ed\u5c0f\uff0c\u5bb9\u6613\u8f93\u5165\u5e76\u4e14\u53ef\u4ee5\u5f88\u8f7b\u6613\u5730\u5728\u5176\u540e\u7ec4\u5408\u5176\u4ed6\u5b57\u6bcd\uff0c\u6bd4\u5982 Go \u7684\u5de5\u5177\u94fe\uff1agoc \u7f16\u8bd1\u5668\u3001goa \u6c47\u7f16\u5668\u3001gol \u8fde\u63a5\u5668\u7b49\uff0c\u5e76\u4e14\u8fd9\u4e2a\u5355\u8bcd\u4e5f\u6b63\u597d\u7b26\u5408\u4ed6\u4eec\u5bf9\u8fd9\u95e8\u8bed\u8a00\u7684\u8bbe\u8ba1\u521d\u8877\uff1a\u7b80\u5355\u3002<\/p>\n<p><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=ZF%2FAdQHsXiZqU3M5uyVQxg%3D%3D.aJWMf%2B2Tt5FGjqFRXAVNHPMU4qlw%2FFOFkHzLS4SoSNs%3D\" rel=\"noopener noreferrer\">https:\/\/golang.google.cn\/<\/a><\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044004167\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u9009\u62e9\u5bf9\u5e94\u7684\u5b89\u88c5\u7248\u672c\u5373\u53ef\uff08\u5efa\u8bae\u9009\u62e9.msi\u6587\u4ef6\uff09\u3002<\/p>\n<p><strong>2.\u67e5\u770b\u662f\u5426\u5b89\u88c5\u6210\u529f + \u73af\u5883\u662f\u5426\u914d\u7f6e\u6210\u529f<\/strong><\/p>\n<p>\u6253\u5f00\u547d\u4ee4\u884c\uff1awin + R \u6253\u5f00\u8fd0\u884c\u6846\uff0c\u8f93\u5165 cmd \u547d\u4ee4\uff0c\u6253\u5f00\u547d\u4ee4\u884c\u7a97\u53e3\u3002<br \/><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000044004168\" alt=\"\" title=\"\" loading=\"lazy\"><\/p>\n<p>\u547d\u4ee4\u884c\u8f93\u5165 go version \u67e5\u770b\u5b89\u88c5\u7248\u672c\uff0c\u663e\u793a\u4e0b\u65b9\u5185\u5bb9\u5373\u4e3a\u5b89\u88c5\u6210\u529f\u3002<\/p>\n<p>[\u5916\u94fe\u56fe\u7247\u8f6c\u5b58\u5931\u8d25,\u6e90\u7ad9\u53ef\u80fd\u6709\u9632\u76d7\u94fe\u673a\u5236,\u5efa\u8bae\u5c06\u56fe\u7247\u4fdd\u5b58\u4e0b\u6765\u76f4\u63a5\u4e0a\u4f20(img-nhDTdQKK-1689067489257)(media\/54576b6c7593e8c73a97975be0910b4b.png)]<\/p>\n<p><a id=\"2\"><\/p>\n<h2>2.Go\u8bed\u8a00\u7279\u6b8a\u7684\u8bed\u8a00\u7279\u6027<\/h2>\n<p><\/a><\/p>\n<p><a id=\"21\"><\/p>\n<h3>2.1\u503c\u4f20\u9012\u548c\u6307\u9488<\/h3>\n<p><\/a><\/p>\n<p>Go\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u548c\u8fd4\u56de\u503c\u5168\u90fd\u662f\u6309\u503c\u4f20\u9012\u7684\u3002\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u6bd4\u5982\u4e0b\u8ff0\u7684\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"go\">type People struct {  \n name string  \n}  \n\n func ensureName(p People) {  \n p.name = &quot;jeffery&quot;  \n }  \n\n func main() {  \n p := People{  \n name: &quot;&quot;  \n }  \n ensurePeople(p)  \n fmt.Println(p.name) \/\/ \u8f93\u51fa\uff1a&quot;&quot;  \n }<\/code><\/pre>\n<p>\u4e3a\u5565\u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u6ca1\u6709\u628a p \u7684\u5185\u5bb9\u6539\u6210\u201cjeffery\u201d\u5462\uff1f\u56e0\u4e3a Go \u8bed\u8a00\u7684\u503c\u4f20\u9012\u7279\u6027\uff0censureName\u51fd\u6570\u5185\u6536\u5230\u7684 p \u5df2\u7ecf\u662f main \u51fd\u6570\u4e2d p \u7684\u4e00\u4e2a\u526f\u672c\u4e86\u3002\u8fd9\u5c31\u548c C\/#\u4e2d\u628a p \u6539\u4e3a\u4e00\u4e2a int \u7c7b\u578b\u5f97\u5230\u7684\u7ed3\u679c\u4e00\u6837\u3002<\/p>\n<p>\u90a3\u600e\u4e48\u89e3\u51b3\u5462\uff1f<strong>\u7528\u6307\u9488<\/strong>\u3002<\/p>\n<p>\u4e0d\u77e5\u9053\u5176\u4ed6\u4eba\u600e\u4e48\u6837\uff0c\u5f53\u6211\u6700\u5f00\u59cb\u5b66\u4e60 Go \u7684\u65f6\u5019\u53d1\u73b0\u9700\u8981\u5b66\u6307\u9488\u7684\u65f6\u5019\u77ac\u95f4\u56de\u60f3\u8d77\u4e86\u5927\u5b66\u65f6\u671f\u88ab C \u548c C++\u6307\u9488\u6298\u78e8\u7684\u90a3\u6bb5\u75db\u82e6\u56de\u5fc6\uff0c\u6240\u4ee5\u6211\u672c\u80fd\u7684\u5bf9\u6307\u9488\u5c31\u6709\u4e00\u79cd\u6392\u65a5\u611f\uff0c\u867d\u7136 C\/#\u4e2d\u4e5f\u53ef\u4ee5\u7528\u6307\u9488\uff0c\u4f46\u662f\u5982\u679c\u4e0d\u5199\u5e95\u5c42\u4ee3\u7801\uff0c\u53ef\u80fd\u5199 10 \u5e74\u4ee3\u7801\u90fd\u7528\u4e0d\u5230\u4e00\u6b21\u3002<\/p>\n<p>\u4e0d\u8fc7\u8fd8\u597d\uff0cGo \u4e2d\u5bf9\u6307\u9488\u7684\u4f7f\u7528\u8fdb\u884c\u4e86\u7b80\u5316\uff0c\u6ca1\u6709\u590d\u6742\u7684\u6307\u9488\u8ba1\u7b97\u903b\u8f91\uff0c\u4ec5\u77e5\u9053\u4e24\u4e2a\u64cd\u4f5c\u5c31\u53ef\u4ee5\u5f88\u8f7b\u677e\u7684\u7528\u597d\u6307\u9488\uff1a<\/p>\n<ul>\n<li>\u201c*\u201c: \u53d6\u5730\u5740\u4e2d\u7684\u5185\u5bb9<\/li>\n<li>\u201c&#038;\u201d: \u53d6\u53d8\u91cf\u7684\u5730\u5740<\/li>\n<\/ul>\n<pre><code class=\"go\">var p \/*People = \/&amp;People{  \n name: &quot;jeffery&quot;,  \n }<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684 People \u5b9e\u4f8b\uff0c\u5e76\u4e14\u901a\u8fc7\u201d&#038;\u201d\u64cd\u4f5c\u83b7\u53d6\u4e86\u5b83\u7684\u5730\u5740\uff0c\u628a\u5b83\u7684\u5730\u5740\u8d4b\u503c\u7ed9\u4e86\u4e00\u4e2a*People\u7684\u6307\u9488\u7c7b\u578b\u53d8\u91cf p\u3002\u6b64\u65f6\uff0cp \u5c31\u662f\u4e00\u4e2a\u6307\u9488\u7c7b\u578b\uff0c\u5982\u679c\u6309\u7167 C \u6216\u8005 C++\uff0c\u6211\u662f\u65e0\u6cd5\u76f4\u63a5\u64cd\u4f5c People \u4e2d\u7684\u5b57\u6bb5 name \u7684\uff0c\u4f46\u662f Go \u5bf9\u6307\u9488\u64cd\u4f5c\u8fdb\u884c\u4e86\u7b80\u5316\uff0c\u6211\u53ef\u4ee5\u5bf9\u4e00\u4e2a\u6307\u9488\u7c7b\u578b\u53d8\u91cf\u76f4\u63a5\u64cd\u4f5c\u5176\u5185\u7684\u5b57\u6bb5\uff0c\u6bd4\u5982\uff1a<\/p>\n<pre><code class=\"go\">func main() {  \n fmt.Println(p.name) \/\/ \u8f93\u51fa\uff1ajeffery  \n fmt.Println(\/*(p).name) \/\/ \u8f93\u51fa\uff1ajeffery  \n}<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u4e24\u4e2a\u64cd\u4f5c\u662f\u7b49\u4ef7\u7684\u3002<\/p>\n<p>\u6709\u4e86\u6307\u9488\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f88\u8f7b\u677e\u7684\u6a21\u62df\u51fa C\/#\u90a3\u79cd<strong>\u6309\u5f15\u7528\u4f20\u9012\u53c2\u6570<\/strong>\u7684\u4ee3\u7801\u4e86\uff1a<\/p>\n<pre><code class=\"go\">type People struct {  \n name string  \n }  \n\n func ensureName(p \/*People) {  \n p.name = &quot;jeffery&quot;  \n }  \n\n func main() {  \n p := \/&amp;People{  \n name: &quot;&quot;  \n }  \n ensurePeople(p)  \n fmt.Println(p.name) \/\/ \u8f93\u51fa\uff1ajeffery  \n }<\/code><\/pre>\n<p><a id=\"22\"><\/p>\n<h3>2.2\u5b57\u7b26\u4e32<\/h3>\n<p><\/a><\/p>\n<p>\u5728 C\/#\u4e2d\u5b57\u7b26\u4e32\u5176\u5b9e\u662f char \u7c7b\u578b\u7684\u6570\u7ec4\uff0c\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u5206\u914d\u5728\u6808\u7a7a\u95f4\u7684\u5f15\u7528\u7c7b\u578b\u3002<\/p>\n<p>\u800c\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u5b57\u7b26\u4e32\u662f<strong>\u503c\u7c7b\u578b<\/strong>\uff0c\u5e76\u4e14<strong>\u5b57\u7b26\u4e32\u662f\u4e00\u4e2a\u6574\u4f53<\/strong>\u3002\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u4e0d\u80fd\u4fee\u6539\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\uff0c\u4ece\u4e0b\u9762\u7684\u4f8b\u5b50\u53ef\u4ee5\u5f88\u6e05\u695a\u7684\u770b\u51fa\u8fd9\u4e00\u6982\u5ff5\uff1a<\/p>\n<pre><code class=\"go\">var str = &quot;jeffery&quot;;  \nstr[0] = 'J';  \n Console.WriteLine(str); \/\/ \u8f93\u51fa\uff1aJeffery<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7684\u8bed\u6cd5\u5728 C\/#\u4e2d\u662f\u6210\u7acb\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u4fee\u6539\u7684\u5176\u5b9e\u662f\u5b57\u7b26\u4e32\u4e2d\u7684\u4e00\u4e2a char \u7c7b\u578b\uff0c\u800c Go \u4e2d\u8fd9\u6837\u7684\u8bed\u6cd5\u662f\u4f1a\u88ab\u7f16\u8bd1\u5668\u62a5\u9519\u7684\uff1a<\/p>\n<pre><code class=\"go\">str := &quot;jeffery&quot;  \nstr[0] = 'J' \/\/ \u7f16\u8bd1\u9519\u8bef\uff1aCannot assign to str[0]<\/code><\/pre>\n<p>\u4f46\u662f\u6211\u4eec\u53ef\u4ee5\u7528\u6570\u7ec4 index \u8bfb\u53d6\u5bf9\u5e94\u5b57\u7b26\u4e32\u7684\u503c\uff1a<\/p>\n<pre><code class=\"go\">s := str[0]  \nfmt.Printf(&quot;%T&quot;, s) \/\/ uint8<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\u8fd9\u4e2a\u8fd4\u56de\u503c\u662fuint8\uff0c\u8fd9\u662f\u4e3a\u5565\u5462\uff1f\u5176\u5b9e\uff0c\u5728 Go \u4e2d\uff0cstring \u7c7b\u578b\u662f\u7531\u4e00\u4e2a\u540d\u4e3arune\u7684\u7c7b\u578b\u7ec4\u6210\u7684\uff0c\u8fdb\u5165 Go \u6e90\u7801\u770b\u5230rune\u7684\u5b9a\u4e49\u5c31\u662f\u4e00\u4e2a int64 \u7c7b\u578b\u3002\u8fd9\u662f\u56e0\u4e3a Go \u4e2d\u628a string \u7f16\u8bd1\u6210\u4e86\u4e00\u4e2a\u4e00\u4e2a\u7684 UTF8 \u7f16\u7801\uff0c\u6bcf\u4e00\u4e2a rune \u5176\u5b9e\u5c31\u662f\u5bf9\u5e94 UTF8 \u7f16\u7801\u7684\u503c\u3002<\/p>\n<p>\u6b64\u5916\uff0cstring \u7c7b\u578b\u8fd8\u6709\u4e00\u4e2a\u5751\uff1a<\/p>\n<pre><code class=\"go\">str := &quot;\u674e\u6b63\u9f99&quot;  \nfmt.Printf(&quot;%d&quot;, len(str))<\/code><\/pre>\n<p><strong>len()\u51fd\u6570\u540c\u6837\u4e5f\u662f go \u7684\u5185\u7f6e\u51fd\u6570\uff0c\u662f\u7528\u6765\u6c42\u96c6\u5408\u7684\u957f\u5ea6\u7684\u3002<\/strong><\/p>\n<p>\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u4f1a\u8fd4\u56de9\uff0c\u8fd9\u662f\u56e0\u4e3a\u4e2d\u6587\u5728 Go \u4e2d\u4f1a\u7f16\u8bd1\u4e3a UTF-8 \u7f16\u7801\uff0c\u4e00\u4e2a\u6c49\u5b57\u7684\u7f16\u7801\u957f\u5ea6\u5c31 3\uff0c\u6240\u4ee5\u4e09\u4e2a\u6c49\u5b57\u5c31\u6210\u4e86 9\uff0c\u4f46\u662f\u4e5f\u4e0d\u4e00\u5b9a\uff0c\u56e0\u4e3a\u4e00\u4e9b\u7279\u6b8a\u7684\u6c49\u5b57\u53ef\u80fd\u5360 4 \u4e2a\u957f\u5ea6\uff0c\u6240\u4ee5\u4e0d\u80fd\u7b80\u5355\u7528 len() \/ 3 \u6765\u83b7\u53d6\u6587\u5b57\u957f\u5ea6\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u6c49\u5b57\u6c42\u957f\u5ea6\u7684\u65b9\u6cd5\u5e94\u8be5\u8fd9\u6837\u505a\uff1a<\/p>\n<pre><code class=\"go\">fmt.Println(utf8.RuneCountInString(&quot;\u674e\u6b63\u9f99&quot;))<\/code><\/pre>\n<p><a id=\"23\"><\/p>\n<h3>2.3\u6570\u7ec4<\/h3>\n<p><\/a><\/p>\n<p>Go \u4e2d\u7684\u6570\u7ec4\u4e5f\u662f\u4e00\u4e2a\u6211\u89c9\u5f97\u8bbe\u8ba1\u7684\u6709\u70b9\u8fc7\u4e8e\u5e95\u5c42\u7684\u6982\u5ff5\u4e86\u3002\u57fa\u7840\u7684\u7528\u6cd5\u548c C\/#\u662f\u76f8\u540c\u7684\uff0c\u4f46\u662f\u7ec6\u8282\u533a\u522b\u8fd8\u662f\u5f88\u5927\u7684\u3002<\/p>\n<p>\u9996\u5148\uff0cGo \u7684\u6570\u7ec4\u4e5f\u662f\u4e00\u4e2a<strong>\u503c\u7c7b\u578b<\/strong>\uff0c\u9664\u6b64\u4e4b\u5916\uff0c\u7531\u4e8e\u201d\u4e25\u683c\u5730\u201c\u9075\u5faa\u4e86\u6570\u7ec4\u662f\u4e00\u6bb5\u8fde\u7eed\u7684\u5185\u5b58\u7684\u7ed3\u5408\u8fd9\u4e2a\u6982\u5ff5\uff0c<strong>\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u6570\u7ec4\u7684\u4e00\u90e8\u5206<\/strong>\u3002\u8fd9\u4e2a\u6982\u5ff5\u4e5f\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u662f\u76f4\u63a5\u533a\u522b\u4e8e\u5207\u7247\u7684\u4e00\u4e2a\u7279\u5f81\u3002\u800c\u4e14\uff0cGo \u4e2d\u7684\u6570\u7ec4\u7684\u957f\u5ea6\u53ea\u80fd\u662f\u4e00\u4e2a\u5e38\u91cf\u3002<\/p>\n<pre><code class=\"go\">a := [5]int{1,2,3,4,5}  \nb := [...]{1,2,3,4,5}  \n\nlena := len(a)  \nlenb := len(b)<\/code><\/pre>\n<p>\u4e0a\u8ff0\u662f Go \u4e2d\u6570\u7ec4\u7684\u4e24\u4e2a\u6bd4\u8f83\u5e38\u89c4\u7684\u521d\u59cb\u5316\u8bed\u6cd5\uff0c\u6570\u7ec4\u7684\u957f\u5ea6\u548c\u5b57\u7b26\u4e32\u4e00\u6837\uff0c\u90fd\u662f\u901a\u8fc7len()\u5185\u7f6e\u51fd\u6570\u83b7\u53d6\u7684\u3002\u5176\u4f59\u7684\u4f7f\u7528\u548c C\/#\u57fa\u672c\u76f8\u540c\uff0c\u6bd4\u5982\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u53d6\u503c\u8d4b\u503c\uff0c\u53ef\u4ee5\u904d\u5386\uff0c\u4e0d\u53ef\u4ee5\u63d2\u5165\u503c\u7b49\u3002<\/p>\n<p><a id=\"24\"><\/p>\n<h3>2.4\u5207\u7247<\/h3>\n<p><\/a><\/p>\n<p>\u4e0e\u6570\u7ec4\u5bf9\u5e94\u7684\u4e00\u4e2a\u6982\u5ff5\uff0c\u5c31\u662f Go \u4e2d\u72ec\u6709\u7684\u5207\u7247Slice\u7c7b\u578b\u3002\u5728\u65e5\u5e38\u7684\u5f00\u53d1\u4e2d\u51e0\u4e4e\u5f88\u5c11\u80fd\u7528\u5f97\u5230\u6570\u7ec4\uff0c\u56e0\u4e3a\u6570\u7ec4\u6ca1\u6709\u6269\u5c55\u80fd\u529b\uff0c\u6bd4\u5982 C\/#\u4e2d\u6211\u4eec\u4e5f\u51e0\u4e4e\u7528\u4e0d\u5230\u6570\u7ec4\uff0c\u80fd\u7528\u6570\u7ec4\u7684\u5730\u65b9\u57fa\u672c\u90fd\u7528List\/&lt;T\/&gt;\u3002Slice \u5c31\u662f List \u7684\u4e00\u79cd Go \u8bed\u8a00\u5b9e\u73b0\uff0c\u5b83\u662f\u4e00\u4e2a<strong>\u5f15\u7528\u7c7b\u578b<\/strong>\uff0c\u4e3b\u8981\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u89e3\u51b3\u6570\u7ec4\u65e0\u6cd5\u63d2\u5165\u6570\u636e\u7684\u95ee\u9898\u3002\u5176\u5e95\u5c42\u4e5f\u662f\u4e00\u4e2a\u6570\u7ec4\uff0c\u53ea\u4e0d\u8fc7\u5b83\u5bf9\u6570\u7ec4\u8fdb\u884c\u4e86\u4e00\u4e9b\u5c01\u88c5\uff0c\u52a0\u5165\u4e86\u4e24\u4e2a\u6307\u9488\u5206\u522b\u6307\u5411\u6570\u7ec4\u7684\u5de6\u53f3\u8fb9\u754c\uff0c\u5c31\u4f7f\u5f97 Slice \u6709\u4e86\u53ef\u4ee5\u589e\u52a0\u6570\u636e\u7684\u529f\u80fd\u3002<\/p>\n<pre><code class=\"go\">s1 := []int{1,2,3,4,5}  \ns2 := s1[1:3]  \ns3 := make([]int, 0, 5)<\/code><\/pre>\n<p>\u4e0a\u9762\u662f Slice \u7684\u4e09\u79cd\u5e38\u7528\u7684\u521d\u59cb\u5316\u65b9\u5f0f\u3002<\/p>\n<ol>\n<li>\u53ef\u4ee5\u770b\u5230\u5207\u7247\u548c\u6570\u7ec4\u7684\u552f\u4e00\u533a\u522b\u5c31\u662f\u6ca1\u6709\u4e86\u6570\u7ec4\u5b9a\u4e49\u4e2d\u7684\u6570\u91cf<\/li>\n<li>\u53ef\u4ee5\u57fa\u4e8e\u4e00\u4e2a\u53bb\u5207\u7247\u53bb\u521b\u5efa\u53e6\u4e00\u4e2a\u5207\u7247\uff0c\u5176\u540e\u9762\u7684\u6570\u5b57\u7684\u542b\u4e49\u5c31\u662f\u76ee\u524d\u4e1a\u754c\u901a\u7528\u7684\u5de6\u5305\u542b\u53f3\u5c01\u95ed<\/li>\n<li>\u53ef\u4ee5\u901a\u8fc7**make()**\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u5207\u7247<\/li>\n<\/ol>\n<p>make()\u51fd\u6570\u611f\u89c9\u53ef\u4ee5\u4f34\u968f Go \u5f00\u53d1\u8005\u7684\u4e00\u751f\uff0cGo \u7684\u4e09\u4e2a\u5f15\u7528\u7c7b\u578b\u90fd\u662f\u901a\u8fc7 make \u51fd\u6570\u8fdb\u884c\u521d\u59cb\u5316\u521b\u5efa\u7684\u3002\u5bf9\u5207\u7247\u6765\u8bf4\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u8868\u793a\u5207\u7247\u7c7b\u578b\uff0c\u6bd4\u5982\u4e0a\u6817\u5c31\u662f\u521d\u59cb\u5316\u4e00\u4e2a int \u7c7b\u578b\u7684\u5207\u7247\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u8868\u793a\u5207\u7247\u7684\u957f\u5ea6\uff0c\u7b2c\u4e09\u4e2a\u53c2\u6570\u8868\u793a\u5207\u7247\u7684\u5bb9\u91cf\u3002<\/p>\n<p>\u60f3\u5207\u7247\u4e2d\u63d2\u5165\u6570\u636e\u9700\u8981\u4f7f\u7528\u5230 append()\u51fd\u6570\uff0c\u5e76\u4e14\u8bed\u6cd5\u5341\u5206\u8be1\u5f02\uff0c\u53ef\u4ee5\u8bf4\u662f\u79bb\u8c31\u5230\u5bb6\u4e86\uff1a<\/p>\n<pre><code class=\"go\">s := make([]int)  \ns = append(s, 12345) \/\/ \u8fd9\u79cd\u8ffd\u52a0\u503c\u8fd8\u9700\u8981\u8fd4\u56de\u7ed9\u539f\u96c6\u5408\u7684\u8bed\u6cd5\u771f\u4e0d\u77e5\u9053\u662f\u54ea\u4e2a\u5c0f\u5929\u624d\u60f3\u5230\u7684<\/code><\/pre>\n<p>\u8fd9\u91cc\u51fa\u73b0\u4e86\u4e00\u4e2a\u65b0\u7684\u6982\u5ff5\uff0c\u5207\u7247\u7684<strong>\u5bb9\u91cf<\/strong>\u3002\u6211\u4eec\u77e5\u9053\u6570\u7ec4\u662f\u6ca1\u6709\u5bb9\u91cf\u8fd9\u4e2a\u6982\u5ff5\u7684\uff08\u5176\u5b9e\u662f\u6709\u7684\uff0c\u53ea\u4e0d\u8fc7\u5bb9\u91cf\u5c31\u662f\u957f\u5ea6\uff09\uff0c\u800c\u5207\u7247\u7684\u5bb9\u91cf\u5176\u5b9e\u5c31\u7c7b\u4f3c\u4e8e C\/#\u4e2dList\/&lt;T\/&gt;\u7684\u5bb9\u91cf\uff08\u6211\u77e5\u9053\u5927\u90e8\u5206 C\/#er \u5728\u4f7f\u7528 List \u7684\u65f6\u5019\u6839\u672c\u4e0d\u4f1a\u53bb\u5173\u5fc3 Capacity \u8fd9\u4e2a\u53c2\u6570\uff09\uff0c\u5bb9\u91cf\u8868\u793a\u7684\u662f\u5e95\u5c42\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n<p>\u5bb9\u91cf\u53ef\u4ee5\u901a\u8fc7 cap()\u51fd\u6570\u83b7\u53d6<\/p>\n<p>\u5728 C\/#\u4e2d\uff0c\u5982\u679c List \u7684\u6570\u636e\u5199\u6ee1\u4e86\u5e95\u5c42\u6570\u7ec4\uff0c\u90a3\u4f1a\u53d1\u751f\u6269\u5bb9\u64cd\u4f5c\uff0c\u9700\u8981\u65b0\u5f00\u8f9f\u4e00\u4e2a\u6570\u7ec4\u5c06\u539f\u6765\u7684\u6570\u636e\u590d\u5236\u5230\u65b0\u7684\u6570\u7ec4\u4e2d\uff0c\u8fd9\u662f\u5f88\u8017\u8d39\u6027\u80fd\u7684\u4e00\u4e2a\u64cd\u4f5c\uff0cGo \u4e2d\u4e5f\u662f\u4e00\u6837\u7684\u3002\u56e0\u6b64\u5728\u65e5\u5e38\u5f00\u53d1\u4f7f\u7528 List \u6216\u8005\u5207\u7247\u7684\u65f6\u5019\uff0c\u5982\u679c\u80fd\u63d0\u524d\u786e\u5b9a\u5bb9\u91cf\uff0c\u6700\u597d\u5c31\u662f\u521d\u59cb\u5316\u7684\u65f6\u5019\u5c31\u5b9a\u4e49\u597d\uff0c\u907f\u514d\u6269\u5c55\u5bfc\u81f4\u7684\u6027\u80fd\u635f\u8017\u3002<\/p>\n<p><a id=\"25\"><\/p>\n<h3>2.5\u96c6\u5408<\/h3>\n<p><\/a><\/p>\n<p>Go \u4e2d\u9664\u4e86\u628a List \u5185\u7f6e\u4e3a\u5207\u7247\uff0c\u540c\u6837\u4e5f\u628a Dictionary\/&lt;TKey, TValue\/&gt;\u5185\u7f6e\u4e3a\u4e86 map \u7c7b\u578b\u3002map \u662f Go \u4e2d\u4e09\u4e2a<strong>\u5f15\u7528\u7c7b\u578b<\/strong>\u7684\u7b2c\u4e8c\u4e2a\uff0c\u5176\u521b\u5efa\u7684\u65b9\u5f0f\u548c\u5207\u7247\u76f8\u540c\uff0c\u4e5f\u9700\u8981\u901a\u8fc7 make \u51fd\u6570\uff1a<\/p>\n<pre><code class=\"go\">m := make(map[int]string, 10)<\/code><\/pre>\n<p>\u4ece\u5b57\u9762\u610f\u601d\u6211\u4eec\u5c31\u53ef\u4ee5\u77e5\u9053\uff0c\u8fd9\u53e5\u8bdd\u662f\u521b\u5efa\u4e86\u4e00\u4e2a key \u4e3a int\uff0cvalue \u4e3a string\uff0c\u521d\u59cb\u5bb9\u91cf\u662f 10 \u7684 map \u7c7b\u578b\u3002<\/p>\n<p>\u5bf9 map \u7684\u64cd\u4f5c\u6ca1\u6709\u50cf C\/#\u90a3\u4e48\u590d\u6742\uff0cget\uff0cset \u548c contains \u64cd\u4f5c\u90fd\u662f\u901a\u8fc7[]\u6765\u5b9e\u73b0\u7684\uff1a<\/p>\n<pre><code class=\"go\">m := make(map[string]string, 5)  \n\n\/\/ \u5224\u65ad\u662f\u5426\u5b58\u5728  \n v, ok := m[&quot;aab&quot;]  \n if !ok {  \n \/\/\u8bf4\u660emap\u4e2d\u6ca1\u6709\u5bf9\u5e94\u7684key  \n }  \n\/\/ set\u503c\uff0c\u5982\u679c\u5b58\u5728\u91cd\u590dkey\u5219\u4f1a\u76f4\u63a5\u66ff\u6362  \n m[&quot;aab&quot;] = &quot;hello&quot;  \n\n\/\/ \u5220\u9664\u503c  \n delete(m, &quot;aab&quot;)<\/code><\/pre>\n<p>\u8fd9\u91cc\u8981\u8bf4\u4e2a\u5751\uff0c\u867d\u7136 Go \u4e2d\u7684 map \u4e5f\u662f\u53ef\u4ee5\u904d\u5386\u7684\uff0c\u4f46\u662f Go \u5f3a\u5236\u5c06\u7ed3\u679c\u4e71\u5e8f\u4e86\uff0c\u6240\u4ee5\u6bcf\u6b21\u904d\u5386\u4e0d\u4e00\u5b9a\u62ff\u5230\u7684\u662f\u76f8\u540c\u987a\u5e8f\u7684\u7ed3\u679c\u3002<\/p>\n<p><a id=\"26\"><\/p>\n<h3>2.6\u9762\u5411\u5bf9\u8c61<\/h3>\n<p><\/a><\/p>\n<p><a id=\"261\"><\/p>\n<h4>2.6.1\u5c01\u88c5<\/h4>\n<p><\/a><\/p>\n<p>\u7ec8\u4e8e\u8bf4\u5230\u9762\u5411\u5bf9\u8c61\u4e86\u3002\u7ec6\u5fc3\u7684\u540c\u5b66\u80af\u5b9a\u5df2\u7ecf\u770b\u5230\u4e86\uff0cGo\u91cc\u9762\u7adf\u7136\u6ca1\u6709\u5c01\u88c5\u63a7\u5236\u5173\u952e\u5b57public,protected\u548cprivate\uff01\u90a3\u6211\u8fd9\u9762\u5411\u5bf9\u8c61\u7b2c\u4e00\u51c6\u5219\u7684\u5c01\u88c5\u6027\u600e\u4e48\u641e\u554a\uff1f<\/p>\n<p>Go \u8bed\u8a00\u7684\u5c01\u88c5\u6027\u662f\u901a\u8fc7<strong>\u53d8\u91cf\u9996\u5b57\u6bcd\u5927\u5c0f\u5199\u63a7\u5236\u7684<\/strong>\uff08\u5bf9\u91cd\u5ea6\u4ee3\u7801\u6d01\u7656\u60a3\u8005\u7684\u6211\u6765\u8bf4\uff0c\u8fd9\u7b80\u76f4\u662f\u5929\u5927\u7684\u798f\u97f3\uff0c\u6211\u518d\u4e5f\u4e0d\u7528\u770b\u5230\u90a3\u4e9b\u9996\u5b57\u6bcd\u5c0f\u5199\u7684\u5c5e\u6027\u4e86\uff09\u3002<\/p>\n<pre><code class=\"go\">\/\/ struct\u7c7b\u578b\u7684\u9996\u5b57\u6bcd\u5927\u5199\u4e86\uff0c\u8bf4\u660e\u53ef\u4ee5\u5728\u5305\u5916\u8bbf\u95ee  \n type People struct {  \n \/\/ Name\u5b57\u6bb5\u9996\u5b57\u6bcd\u4e5f\u5927\u5199\u4e86\uff0c\u540c\u7406\u5305\u5916\u53ef\u8bbf\u95ee  \n Name string  \n \/\/ age\u9996\u5b57\u6bcd\u5c0f\u5199\u4e86\uff0c\u5c31\u662f\u4e00\u4e2a\u5305\u5185\u5b57\u6bb5  \n age int  \n}  \n\n \/\/ New\u51fd\u6570\u5927\u5199\u4e86\uff0c\u5305\u5916\u53ef\u4ee5\u8c03\u5230  \n func NewPeople() People {  \n return People{  \n Name: &quot;jeffery&quot;,  \n age: 28  \n }  \n }<\/code><\/pre>\n<p><a id=\"262\"><\/p>\n<h4>2.6.2\u7ee7\u627f<\/h4>\n<p><\/a><\/p>\n<p>\u5c01\u88c5\u641e\u5b9a\u4e86\uff0c\u7ee7\u627f\u600e\u4e48\u641e\u5462\uff1fGo \u91cc\u597d\u50cf\u4e5f\u6ca1\u6709\u7ee7\u627f\u7684\u5173\u952e\u5b57extends\u554a\uff1fGo \u5b8c\u5168\u4ee5\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684\u4f18\u5148\u7ec4\u5408\u800c\u975e\u7ee7\u627f\u7684\u8bbe\u8ba1\u601d\u60f3\u8bbe\u8ba1\u4e86\u590d\u7528\u7684\u903b\u8f91\uff0c\u5728 Go \u4e2d<strong>\u6ca1\u6709\u7ee7\u627f\uff0c\u53ea\u6709\u7ec4\u5408<\/strong>\u3002<\/p>\n<pre><code class=\"go\">type Animal struct {  \n Age int  \n Name string  \n}  \n\n type Human struct {  \n Animal \/\/ \u5982\u679c\u9ed8\u8ba4\u4e0d\u5b9a\u4e49\u5b57\u6bb5\u7684\u5b57\u6bb5\u540d\uff0c\u90a3Go\u4f1a\u9ed8\u8ba4\u628a\u7ec4\u5408\u7684\u7c7b\u578b\u540d\u5b9a\u4e49\u4e3a\u5b57\u6bb5\u540d  \n \/\/ \u8fd9\u6837\u5199\u7b49\u540c\u4e8e\uff1a Animal Animal  \n Name string  \n}  \n\nfunc do() {  \n h := \/&amp;Human{  \n Animal: Animal{Age: 19, Name: &quot;dog&quot;},  \n Name: &quot;jeffery&quot;,  \n }  \n h.Age = 20  \n fmt.Println(h.Age) \/\/ \u8f93\u51fa\uff1a20\uff0c\u53ef\u4ee5\u770b\u5230\u5982\u679c\u81ea\u8eab\u6ca1\u6709\u7ec4\u5408\u7ed3\u6784\u4f53\u76f8\u540c\u7684\u5b57\u6bb5\uff0c\u90a3\u53ef\u4ee5\u7701\u7565\u5b50\u7ed3\u6784\u4f53\u7684\u8c03\u7528\u76f4\u63a5\u83b7\u53d6\u5c5e\u6027  \n fmt.Println(h.Name) \/\/ \u8f93\u51fa\uff1ajeffery\uff0c\u5bf9\u4e8e\u6709\u76f8\u540c\u7684\u5c5e\u6027\uff0c\u4f18\u5148\u8f93\u51fa\u81ea\u8eab\u7684\uff0c\u8fd9\u4e5f\u662f\u591a\u6001\u7684\u4e00\u79cd\u4f53\u73b0  \n fmt.Println(h.Animal.Name)\/\/ \u8f93\u51fa\uff1adog\uff0c\u540c\u65f6\uff0c\u6240\u7ec4\u5408\u7684\u7ed3\u6784\u4f53\u7684\u5c5e\u6027\u4e5f\u4e0d\u4f1a\u88ab\u6539\u53d8  \n }<\/code><\/pre>\n<p>\u8fd9\u79cd\u7ec4\u5408\u7684\u8bbe\u8ba1\u6a21\u5f0f\u6781\u5927\u7684\u964d\u4f4e\u4e86\u7ee7\u627f\u5e26\u6765\u7684\u8026\u5408\uff0c\u5355\u5c31\u8fd9\u4e00\u70b9\u6765\u8bf4\uff0c\u6211\u8ba4\u4e3a\u662f\u5b8c\u7f8e\u7684\u94f6\u5f39\u3002<\/p>\n<p><a id=\"263\"><\/p>\n<h4>2.6.3\u62bd\u8c61<\/h4>\n<p><\/a><\/p>\n<p>\u5728\u8bb2\u89e3\u5173\u952e\u5b57\u7684\u90e8\u5206\u6211\u4eec\u5c31\u5df2\u7ecf\u770b\u5230\u4e86\uff0cGo \u662f\u6709\u63a5\u53e3\u7684\uff0c\u4f46\u662f\u540c\u6837\u6ca1\u6709\u5b9e\u73b0\u63a5\u53e3\u7684implemented\u5173\u952e\u5b57\uff0c\u90a3\u662f\u56e0\u4e3a Go \u4e2d\u7684\u63a5\u53e3\u5168\u90e8\u90fd\u662f<strong>\u9690\u5f0f\u5b9e\u73b0<\/strong>\u7684\u3002<\/p>\n<pre><code class=\"go\">type IHello interface {  \n sayHello()  \n }  \n\n type People struct {}  \n\n func (p \/*People) sayHello() {  \n fmt.Println(&quot;hello&quot;)  \n }  \n\n func doSayHello(h IHello) {  \n h.sayHello()  \n }  \n\n func main() {  \n p := \/&amp;People{}  \n doSayHello(p) \/\/ \u8f93\u51fa\uff1ahello  \n }<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u4e0a\u4f8b\u4e2d\u7684\u7ed3\u6784\u4f53 p \u5e76\u6ca1\u6709\u548c\u63a5\u53e3\u6709\u4efb\u4f55\u5173\u7cfb\uff0c\u4f46\u662f\u5374\u53ef\u4ee5\u6b63\u5e38\u88abdoSayHello\u8fd9\u4e2a\u51fd\u6570\u5f15\u7528\uff0c\u4e3b\u8981\u5c31\u662f\u56e0\u4e3a Go \u4e2d\u7684\u6240\u6709\u63a5\u53e3\u90fd\u662f\u9690\u5f0f\u5b9e\u73b0\u7684\u3002\uff08\u6240\u4ee5\u6211\u89c9\u5f97\u771f\u7684\u6709\u53ef\u80fd\u51fa\u73b0\u4f60\u5199\u7740\u5199\u7740\u7a81\u7136\u5c31\u5b9e\u73b0\u4e86\u67d0\u4e2a\u4f9d\u8d56\u5305\u7684\u67d0\u4e2a\u63a5\u53e3\u7684\u60c5\u51b5\uff09<\/p>\n<p>\u6b64\u5916\uff0c\u8fd9\u91cc\u770b\u5230\u4e86\u4e00\u4e2a\u4e0d\u4e00\u6837\u7684\u8bed\u6cd5\uff0c\u51fd\u6570\u5173\u952e\u5b57 func \u4e4b\u540e\u6ca1\u6709\u76f4\u63a5\u5b9a\u4e49\u51fd\u6570\u540d\u79f0\uff0c\u800c\u662f\u52a0\u5165\u4e86\u4e00\u4e2a\u7ed3\u6784\u4f53 p \u7684\u4e00\u4e2a\u6307\u9488\u3002\u8fd9\u6837\u7684\u51fd\u6570\u5c31\u662f\u7ed3\u6784\u4f53\u7684\u51fd\u6570\uff0c\u6216\u8005\u66f4\u76f4\u767d\u4e00\u70b9\u5c31\u662f C\/#\u4e2d\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u662f\u4f7f\u7528\u6307\u9488\u7c7b\u578b\u4e3a\u7ed3\u6784\u4f53\u5b9a\u4e49\u51fd\u6570\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u4e0d\u7528\u6307\u9488\uff0c\u4f46\u662f\u5728\u90a3\u79cd\u60c5\u51b5\u4e0b\uff0c\u51fd\u6570\u6240\u66f4\u6539\u7684\u5185\u5bb9\u5c31\u548c\u539f\u7ed3\u6784\u4f53\u5b8c\u5168\u4e0d\u76f8\u5173\u4e86\u3002\u6240\u4ee5\u4e00\u822c\u4e5f\u9075\u5faa\u4e00\u4e2a<em>\u65e0\u8111\u7528\u6307\u9488<\/em>\u7684\u539f\u5219\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u5c01\u88c5\u3001\u7ee7\u627f\u548c\u62bd\u8c61\u90fd\u6709\u4e86\uff0c\u81f3\u4e8e\u591a\u6001\uff0c\u5728\u7ee7\u627f\u90a3\u91cc\u5df2\u7ecf\u770b\u5230\u4e86\uff0cGo \u4e5f\u662f\u4f18\u5148\u5339\u914d\u81ea\u8eab\u7684\u76f8\u540c\u51fd\u6570\uff0c\u5982\u679c\u6ca1\u6709\u624d\u56de\u53bb\u8c03\u7528\u7236\u7ed3\u6784\u4f53\u7684\u51fd\u6570\uff0c\u56e0\u6b64\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u7684\u51fd\u6570\u90fd\u662f\u88ab\u91cd\u5199\u4e4b\u540e\u7684\u51fd\u6570\u3002<\/p>\n<p><a id=\"27\"><\/p>\n<h3>2.7\u8bbe\u8ba1\u54f2\u5b66<\/h3>\n<p><\/a><\/p>\n<p>Go \u8bed\u8a00\u7684\u8bbe\u8ba1\u54f2\u5b66\u662fless is more\u3002\u8fd9\u53e5\u8bdd\u7684\u610f\u601d\u662f Go \u9700\u8981\u7b80\u5355\u7684\u8bed\u6cd5\uff0c\u5176\u4e2d\u7b80\u5355\u7684\u8bed\u6cd5\u4e5f\u5305\u62ec<strong>\u663e\u5f0f\u5927\u4e8e\u9690\u5f0f<\/strong>\uff08\u63a5\u53e3\u7c7b\u578b\u771f\u662f\u6ee1\u5934\u95ee\u53f7\uff09\u3002\u8fd9\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f<\/p>\n<p><a id=\"271\"><\/p>\n<h4>2.7.1. Go \u6ca1\u6709\u9ed8\u8ba4\u7684\u7c7b\u578b\u8f6c\u6362<\/h4>\n<p><\/a><\/p>\n<pre><code class=\"go\">var i int8 = 1  \nvar j int  \nj = i \/\/ \u7f16\u8bd1\u62a5\u9519\uff1aCannot use 'i' (type int8) as the type int<\/code><\/pre>\n<p>\u8fd8\u6709\u4e00\u4e2a\u4f8b\u5b50\u5c31\u662f string \u7c7b\u578b\u4e0d\u80fd\u9ed8\u8ba4\u548c int \u7b49\u5176\u4ed6\u7c7b\u578b\u62fc\u63a5\uff0c\u6bd4\u5982\u8f93\u5165&#8221;n\u4f60\u597d&#8221; + 1\u5728 Go \u4e2d\u540c\u6837\u4f1a\u62a5\u7f16\u8bd1\u9519\u8bef\u3002\u539f\u56e0\u5c31\u662f Go \u7684\u8bbe\u8ba1\u8005\u89c9\u5f97\u8fd9\u79cd\u90fd\u662f\u9690\u5f0f\u7684\u8f6c\u6362\uff0cGo \u9700\u8981\u7b80\u5355\uff0c\u4e0d\u5e94\u8be5\u6709\u8fd9\u4e9b\u3002<\/p>\n<p><a id=\"272\"><\/p>\n<h4>2.7.2. Go \u6ca1\u6709\u9ed8\u8ba4\u53c2\u6570\uff0c\u540c\u6837\u4e5f\u6ca1\u6709\u65b9\u6cd5\u91cd\u8f7d<\/h4>\n<p><\/a><\/p>\n<p>\u8fd9\u4e5f\u662f\u4e00\u4e2a\u5f88\u8ba9\u4eba\u607c\u706b\u8bed\u8a00\u7279\u6027\u3002\u56e0\u4e3a\u4e0d\u652f\u6301\u91cd\u8f7d\uff0c\u5199\u4ee3\u7801\u65f6\u5c31\u4e0d\u5f97\u4e0d\u5199\u5927\u91cf\u53ef\u80fd\u91cd\u590d\u4f46\u662f\u540d\u5b57\u4e0d\u76f8\u540c\u7684\u51fd\u6570\u3002\u8fd9\u4e2a\u7279\u6027\u4e5f\u662f\u6709\u5f00\u53d1\u8005\u4e13\u95e8\u95ee\u8fc7 Go \u8bbe\u8ba1\u5e08\u7684\uff0c \u7ed9\u51fa\u7684\u56de\u590d\u5c31\u662f Go \u7684\u8bbe\u8ba1\u76ee\u6807\u5c31\u662f\u7b80\u5355\uff0c\u5728\u7b80\u5355\u7684\u5927\u524d\u63d0\u4e0b\uff0c\u90e8\u5206\u5197\u4f59\u7684\u4ee3\u7801\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n<p><a id=\"273\"><\/p>\n<h4>2.7.3.Go \u4e0d\u652f\u6301 Attribute<\/h4>\n<p><\/a><\/p>\n<p>\u548c\u76ee\u524d\u6ca1\u6709\u6cdb\u578b\u4e0d\u540c\uff0cGo \u7684\u6cdb\u578b\u662f\u4e00\u4e2a\u6b63\u5728\u5f00\u53d1\u7684\u529f\u80fd\uff0c\u662f\u8fd8\u6ca1\u6765\u5f97\u53ca\u505a\u7684\u3002\u800c\u7279\u6027 Attribute \u4e5f\u5c31\u662f Java \u4e2d\u7684\u6ce8\u89e3\uff0c\u5728 Go \u4e2d\u662f\u88ab\u660e\u786e\u8bf4\u660e\u4e0d\u4f1a\u652f\u6301\u7684\u8bed\u8a00\u7279\u6027\u3002<\/p>\n<p>\u6ce8\u89e3\u80fd\u5728 Java \u4e2d\u5e26\u6765\u600e\u6837\u5f3a\u5927\u7684\u529f\u80fd\u5462\uff1f\u4e3e\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n<p>\u5728\u5927\u578b\u4e92\u8054\u7f51\u90fd\u8f6c\u5411\u5fae\u670d\u52a1\u67b6\u6784\u7684\u65f6\u4ee3\uff0c\u5206\u5e03\u5f0f\u7684\u591a\u6bb5\u63d0\u4ea4\uff0c\u5206\u5e03\u5f0f\u4e8b\u52a1\u5c31\u662f\u4e00\u4e2a\u6bd4\u8f83\u5927\u7684\u6280\u672f\u58c1\u5792\u3002\u4ee5\u5206\u5e03\u5f0f\u4e8b\u52a1\u4e3a\u4f8b\uff0c\u591a\u4e2a\u5fae\u670d\u52a1\u5f88\u53ef\u80fd\u90fd\u4e0d\u662f\u4e00\u4e2a\u56e2\u961f\u5f00\u53d1\u7684\uff0c\u4e5f\u53ef\u80fd\u90e8\u7f72\u5728\u4e16\u754c\u5404\u5730\uff0c\u800c\u5982\u679c\u4e00\u4e2a\u64cd\u4f5c\u9700\u8981\u56de\u6eda\uff0c\u5176\u4ed6\u6240\u6709\u7684\u5fae\u670d\u52a1\u90fd\u9700\u8981\u5b9e\u73b0\u56de\u6eda\u7684\u673a\u5236\u3002\u8fd9\u91cc\u4e0d\u5149\u6d89\u53ca\u590d\u6742\u7684\u4e1a\u52a1\u6a21\u578b\uff0c\u8fd8\u6709\u66f4\u590d\u6742\u7684\u6570\u636e\u5e93\u56de\u6eda\u7b56\u7565\uff08\u4ec0\u4e48 2PC \u554a\uff0cTCC \u554a\u6bcf\u4e00\u4e2a\u7b56\u7565\u90fd\u53ef\u4ee5\u5f53\u4e00\u95e8\u5355\u72ec\u7684\u8bfe\u6765\u8bb2\uff09\u3002<\/p>\n<p>\u8fd9\u79cd\u4e1c\u897f\u5982\u679c\u8981\u4ece\u5934\u5f00\u53d1\u90a3\u51e0\u4e4e\u662f\u5f88\u96be\u8003\u8651\u5168\u9762\u7684\u3002\u66f4\u522b\u63d0\u8fd9\u6837\u7684\u590d\u6742\u4ee3\u7801\u518d<strong>\u8026\u5408<\/strong>\u5230\u4e1a\u52a1\u4ee3\u7801\u4e2d\uff0c\u90a3\u4ee3\u7801\u4f1a\u53d8\u5f97\u975e\u5e38\u96be\u770b\u3002\u90fd\u4e0d\u8bf4\u5206\u5e03\u5f0f\u4e8b\u52a1\u4e86\uff0c\u7b80\u5355\u7684\u4e00\u4e2a\u5185\u5b58\u7f13\u5b58\uff0c\u6211\u4eec\u7528\u7684\u90fd\u5f88\u6df7\u4e71\uff0c\u5728\u4ee3\u7801\u4e2d\u4f1a\u7ecf\u5e38\u770b\u5230\u5148\u8bfb\u53d6\u7f13\u5b58\u5728\u8bfb\u53d6\u6570\u636e\u5e93\u7684\u4ee3\u7801\uff0c\u548c\u4e1a\u52a1\u5b8c\u5168\u8026\u5408\u5728\u4e00\u8d77\uff0c\u5b8c\u5168\u65e0\u6cd5\u7ef4\u62a4\u3002<\/p>\n<p>\u800c Spring Cloud \u4e2d\uff0c\u4ee3\u7801\u7684\u4f7f\u7528\u8005\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u6ce8\u89e3\uff08\u4e5f\u5c31\u662f C\/#\u7684\u7279\u6027\uff09@Transactional\uff0c\u90a3\u8fd9\u4e2a\u65b9\u6cd5\u5c31\u662f\u652f\u6301\u4e8b\u52a1\u7684\uff0c\u4f7f\u8fd9\u79cd\u590d\u6742\u7684\u6280\u672f\u7ea7\u4ee3\u7801\u5b8c\u5168\u548c\u4e1a\u52a1\u4ee3\u7801<strong>\u89e3\u8026<\/strong>\uff0c\u5f00\u53d1\u8005\u5b8c\u5168\u6309\u7167\u6b63\u5e38\u7684\u4e1a\u52a1\u903b\u8f91\u5199\u4e1a\u52a1\u4ee3\u7801\u5373\u53ef\uff0c\u5b8c\u5168\u4e0d\u7528\u7ba1\u4e8b\u52a1\u7684\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n<p>\u7136\u800c\uff0c Go \u7684\u8bbe\u8ba1\u8005\u540c\u6837\u8ba4\u4e3a\u6ce8\u89e3\u4f1a\u4e25\u91cd\u5f71\u54cd\u4ee3\u7801\u4f7f\u7528\u8005\u5bf9\u4e00\u4e2a\u8c03\u7528\u7684\u4f7f\u7528\u5fc3\u667a\uff0c\u56e0\u4e3a\u52a0\u4e86\u4e00\u4e2a\u6ce8\u89e3\uff0c\u5c31\u53ef\u4ee5\u5bfc\u81f4\u4e00\u4e2a\u51fd\u6570\u7684\u529f\u80fd\u5b8c\u5168\u4e0d\u4e00\u6837\uff0c\u8fd9\u4e0e Go \u663e\u5f0f\u5927\u4e8e\u9690\u5f0f\u7684\u8bbe\u8ba1\u7406\u5ff5\u76f8\u8fdd\u80cc\uff0c\u4f1a\u4e25\u91cd\u589e\u52a0\u4f7f\u7528\u8005\u7684\u5fc3\u667a\u8d1f\u62c5\uff0c\u4e0d\u7b26\u5408 Go \u7684\u8bbe\u8ba1\u54f2\u5b66\uff08\u54ce\uff0c\u5c31\u79bb\u8c31\u2026\uff09<\/p>\n<p><a id=\"274\"><\/p>\n<h4>2.7.4. Go \u6ca1\u6709 Exception<\/h4>\n<p><\/a><\/p>\n<p>\u5728 Go \u4e2d\u6ca1\u6709\u5f02\u5e38\u7684\u6982\u5ff5\uff0c\u76f8\u53cd\u5730\u63d0\u4f9b\u4e86\u4e00\u4e2a error \u7684\u673a\u5236\u3002\u5bf9 C\/#\u6765\u8bf4\uff0c\u5982\u679c\u4e00\u6bb5\u4ee3\u7801\u8fd0\u884c\u5b58\u5728\u95ee\u9898\uff0c\u90a3\u6211\u4eec\u53ef\u4ee5\u624b\u52a8\u629b\u51fa\u4e00\u4e2a Exception\uff0c\u5728\u8c03\u7528\u65b9\u53ef\u4ee5<strong>\u6355\u83b7<\/strong>\u5bf9\u5e94\u7684\u5f02\u5e38\u8fdb\u884c\u4e4b\u540e\u7684\u5904\u7406\u3002\u800c Go \u4e2d\u6ca1\u6709\u5f02\u5e38\uff0c\u66ff\u4ee3\u7684\u65b9\u6848\u662f error \u673a\u5236\u3002\u4ec0\u4e48\u662f error \u673a\u5236\u5462\uff1f\u8fd8\u8bb0\u5f97\u4e4b\u524d\u8bb2\u8fc7\u7684 Go \u7684\u51e0\u4e4e\u6240\u6709\u7684\u51fd\u6570\u90fd\u6709\u591a\u4e2a\u8fd4\u56de\u503c\u5417\uff1f\u4e3a\u5565\u8981\u90a3\u4e48\u591a\u7684\u8fd4\u56de\u503c\u5462\uff1f\u5bf9\uff0c\u5c31\u662f\u4e3a\u4e86\u63a5\u6536 error \u7684\u3002\u6bd4\u5982\u4e0b\u8ff0\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"go\">func sayHello(name string) error {  \n if name == &quot;&quot; {  \n return errors.New(&quot;name can not be empty&quot;)  \n }  \n fmt.Printf(&quot;hello, %s\/\/n&quot;, name)  \n return nil  \n}  \n\n\/\/ invoker  \nfunc main() {  \n if err := sayHello(&quot;jeffery&quot;); err != nil {  \n \/\/ handle error  \n }  \n}<\/code><\/pre>\n<p>\u8fd9\u6837\u7684 error \u673a\u5236\u9700\u8981\u4fdd\u8bc1\u6240\u6709\u7684\u4ee3\u7801\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u90fd\u4e0d\u4f1a\u5f02\u5e38\u5d29\u6e83\uff0c\u6bcf\u4e2a\u51fd\u6570\u5230\u5e95\u6267\u884c\u6210\u529f\u4e86\u6ca1\u6709\uff0c\u9700\u8981\u901a\u8fc7\u51fd\u6570\u7684\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u6765\u5224\u65ad\uff0c\u5982\u679c\u4e00\u4e2a\u51fd\u6570\u8c03\u7528\u7684\u8fd4\u56de\u7ed3\u679c\u7684 error == nil\uff0c\u8bf4\u660e\u8fd9\u6bb5\u4ee3\u7801\u6ca1\u95ee\u9898\u3002\u5426\u5219\uff0c\u5c31\u8981\u624b\u52a8\u5904\u7406\u8fd9\u4e2a error\u3002<\/p>\n<p>\u8fd9\u6837\u5c31\u6709\u53ef\u80fd\u5bfc\u81f4\u4e00\u4e2a\u4e25\u91cd\u7684\u540e\u679c\uff1a\u6240\u6709\u7684\u51fd\u6570\u8c03\u7528\u90fd\u9700\u8981\u5199\u6210<\/p>\n<pre><code class=\"go\">if err := function(); err != nil<\/code><\/pre>\n<p>\u8fd9\u6837\u7684\u7ed3\u6784\u3002\u8fd9\u6837\u7684\u540e\u679c\u51e0\u4e4e\u662f\u707e\u96be\u6027\u7684\uff08\u8fd9\u4e5f\u662f\u4e3a\u5565 VS2022 \u652f\u6301\u4e86\u4ee3\u7801 AI \u8865\u5168\u529f\u80fd\u540e\uff0c\u7f51\u4e0a\u7684\u70ed\u8bc4\u90fd\u662f\u5229\u597d Gopher\uff09\u8fd9\u79cd error \u7684\u673a\u5236\u4e5f\u662f Go \u88ab\u9ed1\u7684\u6700\u60e8\u7684\u5730\u65b9\u3002<\/p>\n<p>\u90a3\u8fd9\u65f6\u5019\u80af\u5b9a\u6709\u5c0f\u4f19\u4f34\u8bf4\u4e86\uff0c\u90a3\u6211\u5c31\u662f\u4e0d\u5904\u7406\u641e\u4e00\u4e2a\u7c7b\u4f3c\u4e8e1\/0\u8fd9\u6837\u7684\u4ee3\u7801\u4f1a\u600e\u4e48\u6837\u5462\uff1f<\/p>\n<p>\u5982\u679c\u5199\u4e86\u7c7b\u4f3c\u4e8e\u4e0a\u8ff0\u7684\u4ee3\u7801\uff0c\u90a3\u6700\u7ec8\u4f1a\u5f15\u53d1\u4e00\u4e2a Go \u7684panic\u3002\u5728\u6211\u76ee\u524d\u6d45\u663e\u7684\u7406\u89e3\u4e2d\uff0cpanic\u5176\u5b9e\u624d\u662f C\/#\u4e2d Exception \u7684\u6982\u5ff5\uff0c\u56e0\u4e3a\u7a0b\u5e8f\u8fd0\u884c\u9047\u5230 panic \u540e\u5c31\u4f1a\u5f7b\u5e95\u5d29\u6e83\u4e86\uff0cGo \u7684\u8bbe\u8ba1\u8005\u5728\u6700\u5f00\u59cb\u7684\u8bbe\u8ba1\u4e2d\u4f30\u8ba1\u662f\u8ba4\u4e3a\u6240\u6709\u7684\u9519\u8bef\u90fd\u5e94\u8be5\u7528 error \u5904\u7406\uff0c\u5982\u679c\u5f15\u53d1\u4e86 panic \u90a3\u8bf4\u660e\u8fd9\u4e2a\u7a0b\u5e8f\u65e0\u6cd5\u4f7f\u7528\u4e86\u3002\u56e0\u6b64 panic \u5176\u5b9e\u662f\u4e00\u4e2a\u65e0\u6cd5\u633d\u56de\u7684\u9519\u8bef\u7684\u6982\u5ff5\u3002<\/p>\n<p>\u7136\u800c\uff0c\u5927\u578b\u7684\u9879\u76ee\u4e2d\uff0c\u5e76\u4e0d\u662f\u81ea\u5df1\u7684\u4ee3\u7801\u5199\u7684\u4e07\u65e0\u4e00\u5931\u5c31\u6ca1\u6709 panic \u4e86\uff0c\u5f88\u53ef\u80fd\u6211\u4eec\u5f15\u7528\u7684\u5176\u4ed6\u5305\u5e72\u4e86\u4e2a\u4ec0\u4e48\u6211\u4eec\u4e0d\u77e5\u9053\u7684\u4e8b\u5c31 panic \u4e86\uff0c\u6bd4\u5982\u6700\u5178\u578b\u7684\u4e00\u4e2a\u4f8b\u5b50\uff1aGo \u7684 httpRequest \u4e2d\u7684 Body \u53ea\u80fd\u8bfb\u53d6\u4e00\u6b21\uff0c\u8bfb\u5b8c\u5c31\u6ca1\u6709\u4e86\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u7684 web \u6846\u67b6\u5728\u5904\u7406\u8bf7\u6c42\u65f6\u628a Body \u8bfb\u4e86\uff0c\u6211\u4eec\u518d\u53bb\u8bfb\u53d6\u7ed3\u679c\u5f88\u6709\u53ef\u80fd panic\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4e3a\u4e86\u89e3\u51b3 panic\uff0cGo \u8fd8\u6709\u4e00\u4e2a recover()\u7684\u51fd\u6570\uff0c\u4e00\u822c\u7684\u7528\u6cd5\u662f\uff1a<\/p>\n<pre><code class=\"go\">func main() {  \n panic(1)  \n defer func() {  \n if err := recover(); err != nil {  \n fmt.Println(&quot;boom&quot;)  \n }  \n }  \n}<\/code><\/pre>\n<p>\u5176\u5b9e Go \u6709\u4e00\u4e2a\u5f3a\u5927\u7684\u7ade\u4e89\u8005\u2014\u2014Rust\uff0cRust \u662f Mozilla \u57fa\u91d1\u4f1a\u5728 2010 \u5e74\u7814\u53d1\u7684\u8bed\u8a00\uff0c\u548c Go \u662f\u4ee5 C \u8bed\u8a00\u4e3a\u57fa\u7840\u5f00\u53d1\u7684\u7c7b\u4f3c\uff0cRust \u662f\u4ee5 C++\u4e3a\u57fa\u51c6\u8fdb\u884c\u5f00\u53d1\u7684\u3002\u6240\u4ee5\u73b0\u5728\u793e\u533a\u4e2d\u5c31\u6709 Go \u548c Rust \u4e24\u62e8\u9635\u8425\u5728\u76f8\u4e92\u4e89\u8bba\uff0c\u5435\u5f97\u558b\u558b\u4e0d\u4f11\u3002\u5f53\u7136\uff0c\u4e07\u7269\u6ca1\u6709\u94f6\u5f39\uff0c\u4e00\u5207\u7684\u4e8b\u7269\u90fd\u5e94\u8be5\u4ee5\u8fa9\u8bc1\u7684\u601d\u7ef4\u53bb\u5b66\u4e60\u7406\u89e3\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u770b\u5b8c\u4e86\u4e0a\u9762\u90a3\u4e9b Go \u7684\u8bed\u6cd5\u4e4b\u540e\uff0c\u80af\u5b9a\u4e5f\u4f1a\u624b\u75d2\u5199\u4e00\u70b9 Go \u7684\u4ee3\u7801\u7ec3\u4e60\u7ec3\u4e60\uff0c\u52a0\u6df1\u8bb0\u5fc6\u3002\u6b63\u597d\uff0c\u90a3\u5c31\u6765\u5b9e\u73b0\u4e00\u4e2a Go \u5b98\u7f51\u4e2d\u7684\u4e00\u4e2a\u5c0f\u4f8b\u5b50\uff0c\u81ea\u5df1\u52a8\u624b\u5b9e\u73b0\u4e00\u4e0b\u8fd9\u4e2a\u8ba1\u7b97 Fibonacci \u6570\u5217\u7b2c N \u4e2a\u6570\u7684\u63a5\u53e3\u5427\u3002<\/p>\n<pre><code class=\"go\">type Fib interface {  \n \/\/ CalculateFibN \u8ba1\u7b97\u6590\u6ce2\u90a3\u5951\u6570\u5217\u4e2d\u7b2cN\u4e2a\u6570\u7684\u503c  \n \/\/ \u6590\u6ce2\u90a3\u5951\u6570\u5217\u4e3a\uff1a\u524d\u4e24\u9879\u90fd\u662f1\uff0c\u4ece\u7b2c\u4e09\u9879\u5f00\u59cb\uff0c\u6bcf\u4e00\u9879\u7684\u503c\u90fd\u662f\u524d\u4e24\u9879\u7684\u548c  \n \/\/ \u4f8b\u5982\uff1a1 1 2 3 5 8 13 ...  \n CalculateFibN(n int) int  \n }<\/code><\/pre>\n<p>\u7531\u4e8e\u7bc7\u5e45\u6240\u9650\uff0c\u8fd9\u4e2a\u5c0f\u7ec3\u4e60\u7684<a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=XH7Fgy0Y3OldraHNEwE2Xg%3D%3D.a5OkzdJBLEwyaKt5apoZfy46ZeV6VQwgcGDtqtEakJYdhQlG2XUXG1V0J4H71YNR\" rel=\"noopener noreferrer\">\u7b54\u6848<\/a>\u6211\u653e\u5728\u4e86\u81ea\u5df1\u7684 gitee\u4e2d\uff0c\u6b22\u8fce\u5927\u5bb6\u8bbf\u95ee\u3002<\/p>\n<h2>\u6269\u5c55\u94fe\u63a5\uff1a<\/h2>\n<h4><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=r8p4xGFUq6Ov6SFxOCO5bw%3D%3D.shMI%2BmsRsZtSuj8xi1n5a%2Bev8Oc5JtV7NMoxUxtz%2B8uQzWlhjsjG%2FxSVKaEqrnRfCoRybEZ4FpBXqajrGWb2V3pYkOwELQseFVQh%2FY4X%2Bn8%3D\" rel=\"noopener noreferrer\">\u524d\u7aef\u62a5\u8868\u5de5\u5177\u9700\u8981\u5177\u5907\u54ea\u4e09\u4e2a\u5fc5\u5907\u80fd\u529b<\/a><\/h4>\n<h4><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=n62IgSs9cWQWwVi5GpdtPA%3D%3D.wIchetGT3K9wqMY11jIWTPe66HGJItWCAdRgHJlf%2FN4r82QhCM454IK2PSg5Hbj3IJpde51S1n%2FJRbGJ%2F3Mu3ZlJh62SmnmMAY9OSsWVEns%3D\" rel=\"noopener noreferrer\">\u5b9e\u65f6\u6570\u636e\u53ef\u89c6\u5316\u2014\u2014\u73b0\u4ee3\u6570\u636e\u7684\u8fb9\u7f18\u5206\u6790\u573a\u666f<\/a><\/h4>\n<h4><a target=\"_blank\" href=\"https:\/\/link.segmentfault.com\/?enc=Q%2BQaEXqb16vIaZz1DjRsUA%3D%3D.fs4GjhRuY32%2BnH0ty8DFiKJoNcTRfzcbEhz7fim06KzJoTd1a%2FqbEW9GMxMS%2BnPktFcaCtZrgkZAfxwZHblfBTdK7GMnZFzqt43TW6WVnjE%3D\" rel=\"noopener noreferrer\">Java\u6279\u91cf\u64cd\u4f5cExcel\u6587\u4ef6\u5b9e\u8df5<\/a><\/h4>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000044004162\">https:\/\/segmentfault.com\/a\/1190000044004162<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6458\u8981\uff1a\u672c\u6587\u7531\u8461\u8404\u57ce\u6280\u672f\u56e2\u961f\u4e8e\u601d\u5426\u539f\u521b\u5e76\u9996\u53d1\u3002\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\uff1a\u8461\u8404\u57ce\u5b98\u7f51\uff0c\u8461\u8404\u57ce\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e13\u4e1a\u7684\u5f00\u53d1\u5de5\u5177\u3001\u89e3\u51b3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008085","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008085","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008085"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008085\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}