{"id":10020819,"date":"2025-06-07T00:12:01","date_gmt":"2025-06-06T16:12:01","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020819"},"modified":"2025-06-07T00:12:01","modified_gmt":"2025-06-06T16:12:01","slug":"%e7%bc%93%e5%86%b2%e5%8c%ba-emacs-%e6%97%a0%e5%bd%a2%e4%b9%8b%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020819","title":{"rendered":"\u7f13\u51b2\u533a\u2014\u2014Emacs \u65e0\u5f62\u4e4b\u8c61"},"content":{"rendered":"<blockquote><p>=&gt; <strong>\u4e0a\u4e00\u7bc7<\/strong>\uff1a<a href=\"https:\/\/segmentfault.com\/a\/1190000046614136\" target=\"_blank\" rel=\"noopener noreferrer\">Emacs\uff1a\u6211\u66fe\u4e3a\u4f60\u7559\u4e0b\u9000\u8def\u2026\u2026<\/a><\/p><\/blockquote>\n<h2>\u524d\u8a00<\/h2>\n<p>\u6211\u4eec\u603b\u662f\u4e60\u60ef\u4e8e\u8bf4\uff0c\u7528 Emacs \u7f16\u8f91\u67d0\u6587\u4ef6\u3002\u5bf9\u4e8e\u5176\u4ed6\u6587\u672c\u7f16\u8f91\u5668\uff0c\u6211\u4eec\u4e5f\u662f\u4e60\u60ef\u5982\u662f\u8bf4\u3002\u5b9e\u9645\u4e0a\u7528\u6587\u672c\u7f16\u8f91\u5668\u7f16\u8f91\u6587\u4ef6\uff0c\u53ea\u662f\u4e00\u79cd\u5047\u8c61\u3002\u6211\u4eec\u603b\u662f\u5728\u5185\u5b58\u91cc\u7f16\u8f91\u7740\u6587\u4ef6\u7684\u865a\u76f8\uff0c\u5e76\u5728\u67d0\u4e2a\u65f6\u673a\u5c06\u865a\u76f8\u5199\u5165\u6587\u4ef6\uff0c\u4ece\u800c\u53d8\u4e3a\u5b9e\u76f8\u3002\u8fd9\u4e2a\u4e8b\u5b9e\uff0c\u5018\u82e5\u4f60\u4ece\u672a\u7528 C\/C++ \u4e4b\u7c7b\u7684\u8bed\u8a00\u5199\u8fc7\u7a0b\u5e8f\u6216\u8005\u5bf9\u8ba1\u7b97\u673a\u8fd0\u4f5c\u539f\u7406\u8fd1\u4e4e\u4e00\u65e0\u6240\u77e5\uff0c\u901a\u5e38\u96be\u4ee5\u4f53\u4f1a\u3002\u4e00\u4e9b\u80fd\u591f\u81ea\u52a8\u4fdd\u5b58\u6587\u4ef6\u5185\u5bb9\u7684\u7f16\u8f91\u5668\u2014\u2014Emacs \u4e5f\u53ef\u4ee5\u5982\u6b64\u2014\u2014\uff0c\u5f88\u5bb9\u6613\u7ed9\u4f60\u9020\u6210\u9519\u89c9\uff0c\u4ee5\u4e3a\u4f60\u6b63\u5728\u7f16\u8f91\u786c\u76d8\u91cc\u6587\u4ef6\u7684\u5185\u5bb9\u3002Emacs \u6781\u4e3a\u64c5\u957f\u8425\u9020\u865a\u76f8\uff0c\u53ef\u8c13\u6587\u5b57\u7f16\u8f91\u884c\u5f53\u7684 PhotoShop\u3002<\/p>\n<h2>\u7f13\u51b2\u533a<\/h2>\n<p>\u6bcf\u6b21\u5f53\u4f60\u8fd0\u884c Emacs \u65f6\uff0c\u5373\u4f7f\u4f60\u53ea\u7528 Emacs \u6253\u5f00\u4e86\u4e00\u4efd\u6587\u4ef6\uff0c\u4f8b\u5982 foo.txt\uff0cEmacs \u4f1a\u5728\u5185\u5b58\u7a7a\u95f4\u521b\u5efa\u540d\u4e3a foo.txt \u7684\u7f13\u51b2\u533a\u5e76\u5c06 foo.txt \u73b0\u6709\u5185\u5bb9\u590d\u5236\u5230\u8be5\u7f13\u51b2\u533a\uff0c\u9664\u6b64\u4e4b\u5916\uff0cEmacs \u8fd8\u6709\u4e00\u4e9b\u7f13\u51b2\u533a\u9690\u85cf\u5728\u5e55\u540e\u3002<\/p>\n<p>\u6267\u884c <code>M-x list-buffers<\/code>\uff0c\u4f60\u53ef\u4ee5\u770b\u5230 Emacs \u5f53\u524d\u7684\u6240\u6709\u7f13\u51b2\u533a\u7684\u540d\u5b57\uff0c\u5176\u4e2d\u6709\u4e9b\u7f13\u51b2\u533a\u5173\u8054\u7740\u786c\u76d8\u4e0a\u7684\u6587\u4ef6\uff0c\u4f8b\u5982\u4e0a\u8ff0\u7684 foo.txt \u7f13\u51b2\u533a\uff0c\u4e5f\u6709\u4e00\u4e9b\u7f13\u51b2\u533a\u5e76\u4e0d\u5173\u8054\u4efb\u4f55\u6587\u4ef6\uff0c\u4f8b\u5982 <code>*scratch*<\/code>\u3001<code>*Messages*<\/code> \u4ee5\u53ca<code>*Completions<\/code> \u7b49\u7f13\u51b2\u533a\uff0c\u8fd8\u6709\u4e00\u4e2a\u7f13\u51b2\u533a\uff0c\u751a\u81f3\u4e0d\u4f1a\u663e\u793a\u5728 <code>list-buffers<\/code> \u7684\u7ed3\u679c\u4e2d\uff0c\u5b83\u5c31\u662f\u5fae\u7f13\u51b2\u533a\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c<code>*Messages*<\/code> \u5c31\u662f <code>message<\/code> \u51fd\u6570\u7528\u4e8e\u8f93\u51fa\u4fe1\u606f\u7684\u7f13\u51b2\u533a\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"584\" height=\"269\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVdjLjS\" alt=\"\u7f13\u51b2\u533a\u5217\u8868\" title=\"\u7f13\u51b2\u533a\u5217\u8868\"><\/p>\n<p>\u5728\u5f53\u524d\u7a97\u53e3\u91cc\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>C-x b<\/code> \u5207\u6362\u7f13\u51b2\u533a\uff0c\u5018\u82e5\u4f60\u4e0d\u77e5\u9053\u8981\u5207\u6362\u7684\u7f13\u51b2\u533a\u7684\u540d\u5b57\uff0c\u53ef\u4ee5 <code>C-x b TAB<\/code>\uff0c\u5f00\u542f <code>*Completions*<\/code> \u7f13\u51b2\u533a\u53ca\u5176\u7a97\u53e3\uff0c\u7136\u540e\u4ece\u4e2d\u9009\u62e9\u4f60\u8981\u5207\u6362\u7684\u7f13\u51b2\u533a\u3002<code>TAB<\/code> \u5373\u5236\u8868\u952e\uff0c\u4ea6\u5373 Tab \u952e\u3002\u5728 Emacs \u91cc\u4ee5\u53ca Unix \u6216 Linux \u7684 Shell \u91cc\uff0cTab \u952e\u901a\u5e38\u7528\u4e8e\u81ea\u52a8\u8865\u5168\u547d\u4ee4\uff0c\u6545\u800c\u5728 Emacs \u91cc\uff0c\u901a\u8fc7\u5b83\uff0c\u80fd\u5f00\u542f <code>*Completions*<\/code> \u7f13\u51b2\u533a\u53ca\u5176\u7a97\u53e3\u3002<\/p>\n<p>\u5018\u82e5\u4f60\u53ea\u662f\u60f3\u8bd5\u9a8c\u4e00\u4e0b\uff0c\u5e76\u4e0d\u60f3\u5207\u6362\u7f13\u51b2\u533a\uff0c\u53ea\u9700\u5c06\u5149\u6807\u5b9a\u4f4d\u5230 <code>*Completions*<\/code> \u7f13\u51b2\u533a\u6240\u5728\u7a97\u53e3\uff0c\u6441 <code>q<\/code> \u952e\u9000\u51fa\u8be5\u7a97\u53e3\uff0c\u7136\u540e\u4f7f\u7528 <code>C-g<\/code> \u7ec8\u6b62 <code>C-x b<\/code> \u64cd\u4f5c\u3002<\/p>\n<p>\u4f7f\u7528 <code>C-k \u7f13\u51b2\u533a\u540d<\/code> \u53ef\u4ee5\u5173\u95ed\u6307\u5b9a\u7684\u7f13\u51b2\u533a\uff0c\u4e5f\u53ef\u4ee5\u7528 <code>C-k TAB<\/code> \u8865\u5168\u7684\u65b9\u5f0f\uff0c\u4ece\u6253\u5f00\u7684 <code>*Completions*<\/code> \u7f13\u51b2\u533a\u6240\u5728\u7a97\u53e3\u9009\u62e9\u8981\u5173\u95ed\u7684\u7f13\u51b2\u533a\u3002<\/p>\n<h2>\u521b\u5efa\u7f13\u51b2\u533a<\/h2>\n<p>\u5728 Elisp \u8bed\u8a00\u4e2d\uff0c\u7f13\u51b2\u533a\u662f\u4e00\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u901a\u8fc7\u9ed8\u8ba4\u7ed1\u5b9a\u4e8e\u5728 <code>C-x C-f<\/code> \u7684 <code>find-file<\/code> \u51fd\u6570\u4fbf\u53ef\u4e3a\u8be5\u7c7b\u578b\u521b\u5efa\u5b9e\u4f8b\u6216\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u8868\u8fbe\u5f0f <code>(find-file &quot;\/tmp\/foo.c&quot;)<\/code> \u4e0e <code>C-x C-f \/tmp\/foo.c<\/code> \u7b49\u6548\u3002\u518d\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">(let ((foo-c-buf (find-file &quot;\/tmp\/foo.c&quot;)))\n    (message &quot;\u6b64\u523b\u6211\u5728\u7f13\u51b2\u533a %s \u91cc&quot; (buffer-name foo-c-buf)))<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u662f\u901a\u8fc7 <code>let<\/code> \u8868\u8fbe\u5f0f\uff0c\u5c06 <code>find-file<\/code> \u521b\u5efa\u7684\u7f13\u51b2\u533a\u5bf9\u8c61\u8bb0\u4e3a <code>foo-c-buf<\/code>\uff0c\u7136\u540e\u7528\u51fd\u6570 <code>buffer-name<\/code> \u83b7\u53d6 <code>foo-c-buf<\/code> \u6240\u8bb0\u7f13\u51b2\u533a\u5bf9\u8c61\u7684\u540d\u5b57\uff0c\u6700\u540e\u7528 <code>message<\/code> \u8868\u8fbe\u5f0f\u8f93\u51fa\u8be5\u540d\u5b57\u3002\u5728 Emacs \u91cc\u5bf9\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u6c42\u503c\uff0c\u5373\u5728\u5176\u5c3e\u90e8\u6267\u884c <code>C-x C-e<\/code>\uff0c\u6240\u4ea7\u751f\u7684\u6548\u5e94\u662f\uff0cEmacs \u4f1a\u521b\u5efa\u540d\u4e3a <code>foo.c<\/code> \u7684\u7f13\u51b2\u533a\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\uff0c\u7136\u540e\u5728\u5fae\u7f13\u51b2\u533a\u4e2d\u663e\u793a\u4e86\u8be5\u7f13\u51b2\u533a\u7684\u540d\u5b57\u3002<\/p>\n<p>\u4f7f\u7528\u66f4\u4e3a\u57fa\u7840\u7684 <code>generate-new-buffer<\/code> \u53ef\u521b\u5efa\u65e0\u6587\u4ef6\u7ed1\u5b9a\u7684\u7f13\u51b2\u533a\u5bf9\u8c61\u3002\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;)))\n    (message &quot;\u7f13\u51b2\u533a %s&quot; (buffer-name foo)))<\/code><\/pre>\n<p>\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u53ef\u4ee5\u521b\u5efa\u540d\u4e3a <code>Foo<\/code> \u7684\u7f13\u51b2\u533a\u5bf9\u8c61\uff0c\u5e76\u5c06\u5176\u8bb0\u4e3a\u5c40\u90e8\u53d8\u91cf <code>foo<\/code>\uff0c\u7136\u540e\u5728\u5fae\u7f13\u51b2\u533a\uff08\u6216 <code>*Message*<\/code> \u7f13\u51b2\u533a\uff09\u8f93\u51fa\u8be5\u7f13\u51b2\u533a\u5bf9\u8c61\u7684\u540d\u5b57 <code>Foo<\/code>\u3002<\/p>\n<p>\u5c06\u521b\u5efa\u7684\u7f13\u51b2\u533a\u5bf9\u8c61\u8bb0\u4e3a\u53d8\u91cf\uff0c\u662f\u4e3a\u4e86\u540e\u7eed\u901a\u8fc7\u53d8\u91cf\u8bbf\u95ee\u8be5\u5bf9\u8c61\uff0c\u4e3a\u4e86\u4fbf\u4e8e\u53d9\u8ff0\uff0c\u6211\u4eec\u5bf9\u4e8c\u8005\u4e0d\u4f5c\u533a\u5206\uff0c\u4f8b\u5982\u4e00\u65e6\u5c06\u67d0\u4e2a\u7f13\u51b2\u533a\u5bf9\u8c61\u8bb0\u4e3a\u67d0\u53d8\u91cf\uff0c\u5c31\u76f8\u5f53\u4e8e\u4e00\u4e2a\u4eba\u6709\u4e86\u540d\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u6b64\u540d\u6307\u4ee3\u6b64\u4eba\u3002\u540d\u5b57\u4e0d\u8fc7\u662f\u7b26\u53f7\uff0c\u7528\u4e8e\u6307\u4ee3\u67d0\u7269\u3002\u4e8b\u5b9e\u4e0a\uff0cElisp \u8bed\u8a00\u91cc\uff0c\u53d8\u91cf\u540d\u7684\u786e\u53ea\u662f\u7b26\u53f7\uff0c\u4e3a\u4e00\u4e2a\u53d8\u91cf\u8d4b\u503c\u7684\u672c\u8d28\u662f\u7528\u4e00\u4e2a\u7b26\u53f7\u7ed1\u5b9a\u4e00\u4e2a\u503c\u3002<\/p>\n<h2>\u5f53\u524d\u7f13\u51b2\u533a<\/h2>\n<p>Emacs \u8fd0\u884c\u671f\u95f4\uff0c\u53ef\u4ee5\u521b\u5efa\u591a\u4e2a\u7f13\u51b2\u533a\u3002\u8fd9\u4e9b\u7f13\u51b2\u533a\u53ef\u4ee5\u5728\u67d0\u4e2a\u7a97\u53e3\u4e2d\u5448\u73b0\uff0c\u4e5f\u53ef\u4ee5\u9690\u85cf\u5728\u5e55\u540e\uff0c\u4f46\u65e0\u8bba\u4f55\u65f6\uff0c\u53ea\u6709\u4e00\u4e2a\u7f13\u51b2\u533a\u53ef\u4f5c\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\u3002\u53ef\u4ee5\u4f7f\u7528 <code>set-buffer<\/code> \u51fd\u6570\u5c06\u67d0\u4e2a\u7f13\u51b2\u533a\u5bf9\u8c61\u8bbe\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\uff0c\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;)))\n    (set-buffer foo))<\/code><\/pre>\n<p>\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u521b\u5efa\u4e86\u7f13\u51b2\u533a\u5bf9\u8c61 <code>foo<\/code> \u5e76\u5c06\u5176\u8bbe\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\u3002<\/p>\n<p>\u5018\u82e5\u4f60\u5e0c\u671b\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u80fd\u6c38\u4e45\u4fdd\u5b58\u4e0b\u6765\uff0c\u5728\u5c06\u7f13\u51b2\u533a\u5bf9\u8c61\u8bbe\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\u540e\uff0c\u53ef\u4f7f\u7528 <code>set-visited-file-name<\/code> \u5c06\u5176\u5173\u8054\u6307\u5b9a\u7684\u6587\u4ef6\uff0c\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;)))\n    (set-buffer foo)\n    (set-visited-file-name &quot;\/tmp\/foo.txt&quot;)\n    (message &quot;\u7f13\u51b2\u533a %s&quot; (buffer-name foo)))<\/code><\/pre>\n<p>\u5f53\u7f13\u51b2\u533a\u5bf9\u8c61 <code>foo<\/code> \u4e0e\u6587\u4ef6 \/tmp\/foo.txt \u5173\u8054\u540e\uff0c\u7f13\u51b2\u533a\u5bf9\u8c61\u7684\u540d\u5b57\u4fbf\u4f1a\u7531 <code>Foo<\/code> \u53d8\u4e3a <code>foo.txt<\/code>\u3002\u4f7f\u7528 <code>with-current-buffer<\/code> \u53ef\u4ee5\u5c06\u67d0\u4e2a\u7f13\u51b2\u533a\u5bf9\u8c61\u53d8\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\uff0c\u5e76\u5173\u8054\u4e00\u7ec4\u76f8\u5173\u7684\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u4e0a\u8ff0\u4ee3\u7801\u53ef\u7b49\u6548\u4fee\u6539\u4e3a<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;)))\n    (with-current-buffer foo\n        (set-visited-file-name &quot;\/tmp\/foo.txt&quot;)\n        (message &quot;\u7f13\u51b2\u533a %s&quot; (buffer-name foo))))<\/code><\/pre>\n<p>\u4f7f\u7528 <code>with-current-buffer<\/code> \u8868\u8fbe\u5f0f\u7684\u597d\u5904\u662f\uff0c\u4f60\u65e0\u9700\u65f6\u523b\u8bb0\u4f4f\u5f53\u524d\u7f13\u51b2\u533a\u662f\u8c01\u3002<\/p>\n<h2>\u5185\u5bb9\u8f6c\u79fb<\/h2>\n<p>\u7f13\u51b2\u533a\uff0c\u4e5f\u8bb8\u662f Elisp \u8bed\u8a00\u91cc\u6700\u4e3a\u91cd\u8981\u7684\u6570\u636e\u7c7b\u578b\u4e86\uff0c\u5176\u529f\u7528\u4ee4\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u6240\u63d0\u4f9b\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u96be\u4ee5\u4f01\u53ca\u3002\u5728\u5f53\u524d\u7f13\u51b2\u533a\u5185\uff0c\u4f60\u53ef\u4ee5\u79fb\u52a8\u5149\u6807\uff0c\u5728\u4efb\u610f\u4f4d\u7f6e\u63d2\u5165\u6587\u5b57\uff0c\u53ef\u4ee5\u968f\u65f6\u5c06\u7f13\u51b2\u533a\u5185\u5bb9\u4fdd\u5b58\u5230\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u5c06\u4e00\u4e2a\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u7f13\u51b2\u533a\u3002<\/p>\n<p><code>insert-buffer<\/code> \u53ef\u5c06\u6307\u5b9a\u7684\u7f13\u51b2\u533a\u7684\u5185\u5bb9\u63d2\u5165\u5230\u5f53\u524d\u7f13\u51b2\u533a\u5149\u6807\u6240\u5728\u4f4d\u7f6e\u3002\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;))\n      (bar (generate-new-buffer &quot;Bar&quot;)))\n    (with-current-buffer foo\n        (insert &quot;i am foo!&quot;))\n    (with-current-buffer bar\n        (insert-buffer foo)))<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u521b\u5efa\u4e86\u4e24\u4e2a\u7f13\u51b2\u533a\u5bf9\u8c61 <code>foo<\/code> \u548c <code>bar<\/code>\u3002\u5728 <code>foo<\/code> \u4e2d\uff0c\u6211\u4eec\u968f\u610f\u63d2\u5165\u4e86\u6587\u5b57\u300ci am foo!\u300d\u3002\u7136\u540e\uff0c\u6211\u4eec\u5c06 <code>foo<\/code> \u4e2d\u7684\u5185\u5bb9\u63d2\u5165\u5230\u4e86 <code>bar<\/code> \u4e2d\u3002<\/p>\n<p>\u4e0d\u8fc7\uff0c<code>insert-buffer<\/code> \u662f\u53ef\u4ea4\u4e92\u51fd\u6570\uff0c\u4ea6\u5373\u5b83\u9700\u8981\u901a\u8fc7 <code>M-x<\/code> \u7684\u65b9\u5f0f\u8c03\u7528\uff0c\u5728 Elisp \u7a0b\u5e8f\u91cc\u76f4\u63a5\u8c03\u7528\u5b83\uff0cEmacs \u4e0d\u592a\u540c\u610f\u8fd9\u79cd\u884c\u4e3a\u3002\u6b63\u786e\u7684\u65b9\u5f0f\u662f\u4f7f\u7528 <code>insert-buffer<\/code> \u7684\u975e\u53ef\u4ea4\u4e92\u7248\u672c\uff0c\u5373 <code>insert-buffer-substring<\/code>\uff0c\u540e\u8005\u53ef\u4ee5\u5c06\u7ed9\u5b9a\u7684\u7f13\u51b2\u533a\u53ca\u5176\u5185\u5bb9\u7684\u5b50\u57df\u63d2\u5165\u5230\u5f53\u524d\u7f13\u51b2\u533a\u3002\u4f8b\u5982<\/p>\n<pre><code class=\"lisp\">;; \u5c06 foo \u7f13\u51b2\u533a\u5168\u90e8\u5185\u5bb9\u63d2\u5165\u5230\u5f53\u524d\u7f13\u51b2\u533a\n(insert-buffer-substring foo)\n;; \u5c06 foo \u7f13\u51b2\u533a\u7684\u7b2c 1 \u81f3\u7b2c 7 \u4e2a\u5b57\u7b26\u63d2\u5165\u5230\u5f53\u524d\u7f13\u51b2\u533a\n(insert-buffer-substring foo 1 7)<\/code><\/pre>\n<p><code>erase-buffer<\/code> \u53ef\u4ee5\u6e05\u9664\u5f53\u524d\u7f13\u51b2\u533a\u7684\u5185\u5bb9\uff0c\u82e5\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u5b9e\u73b0\u7684\u6548\u679c\u4fbf\u662f\uff0c<code>foo<\/code> \u4e2d\u7684\u5185\u5bb9\u88ab\u8f6c\u79fb\u5230\u4e86 <code>bar<\/code>\u3002<\/p>\n<pre><code class=\"lisp\">(let ((foo (generate-new-buffer &quot;Foo&quot;))\n      (bar (generate-new-buffer &quot;Bar&quot;)))\n    (with-current-buffer foo\n        (insert &quot;i am foo!&quot;))\n    (with-current-buffer bar\n        (insert-buffer-substring foo)\n        (with-current-buffer foo\n            (erase-buffer))))\n\n\u51fd\u6570 `point-min` \u548c `point-max` \u53ef\u5206\u522b\u83b7\u53d6\u5f53\u524d\u7f13\u51b2\u533a\u7684\u5f00\u59cb\u548c\u672b\u5c3e\u7684\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c\u82e5\u5f53\u524d\u7f13\u51b2\u533a\u4e00\u5171\u542b\u6709 100 \u4e2a\u5b57\u7b26\uff0c\u5219 `(point-min)` \u7684\u6c42\u503c\u7ed3\u679c\u4e3a 1\uff0c\u800c `(point-max)` \u7684\u7ed3\u679c\u4e3a 100\uff0c\u501f\u52a9\u524d\u8005\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u5149\u6807\u79fb\u52a8\u5230\u7f13\u51b2\u533a\u9996\u90e8\uff0c\u501f\u52a9\u540e\u8005\u4e0d\u4ec5\u53ef\u5c06\u5149\u6807\u79fb\u52a8\u5230\u7f13\u51b2\u533a\u5c3e\u90e8\uff0c\u800c\u4e14\u4e5f\u80fd\u83b7\u77e5\u7f13\u51b2\u533a\u7684\u957f\u5ea6\u3002\u51fd\u6570 `point` \u53ef\u4ee5\u83b7\u53d6\u5f53\u524d\u7f13\u51b2\u533a\u4e2d\uff0c\u5149\u6807\u7684\u5f53\u524d\u4f4d\u7f6e\u3002\u5f53\u524d\u7f13\u51b2\u533a\u7684\u5149\u6807\u53ef\u4ee5\u901a\u8fc7 `goto-char`\u3001`forward-char` \u4ee5\u53ca `backward-char` \u79fb\u52a8\u3002\u60f3\u5fc5\u4f60\u8fd8\u8bb0\u5f97\u6211\u4eec\u66fe\u7ecf\u7528\u8fc7\u5b83\u4eec\u3002\n\n\u57fa\u4e8e\u4e0a\u8ff0\u7684\u7f13\u51b2\u533a\u5185\u7684\u5149\u6807\u5b9a\u4f4d\u529f\u80fd\uff0c\u53ef\u4ee5\u81ea\u7531\u5730\u5c06\u4e00\u4e2a\u7f13\u51b2\u533a\u4e2d\u7684\u5185\u5bb9\u63d2\u5165\u5230\u53e6\u4e00\u4e2a\u7f13\u51b2\u533a\u4e2d\u6307\u5b9a\u7684\u4f4d\u7f6e\uff0c\u4e5f\u8bb8\u4f60\u6b64\u523b\u8fd8\u4e0d\u7406\u89e3\u6709\u4f55\u5fc5\u8981\u5982\u6b64\u3002\u5f88\u5feb\uff0c\u6211\u4f1a\u5411\u4f60\u8bc1\u660e\u5b83\u7684\u610f\u4e49\u3002\n\n# \u8d4b\u4ee5\u7a97\u53e3\n\n\u5f53\u524d\u7684\u7f13\u51b2\u533a\u672a\u5fc5\u5728\u5f53\u524d\u7684\u7a97\u53e3\u91cc\u5448\u73b0\u3002\u4e0d\u8fc7\uff0c\u5f53\u8f93\u5165\u7126\u70b9\u843d\u5165\u67d0\u7a97\u53e3\uff0c\u4ea6\u5373\u8be5\u7a97\u53e3\u88ab\u6fc0\u6d3b\uff0c\u5219\u4e0e\u8be5\u7a97\u53e3\u5173\u8054\u7684\u7f13\u51b2\u533a\u4f1a\u81ea\u52a8\u6210\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\u3002\n\n`selected-window` \u53ef\u83b7\u5f97\u5f53\u524d\u88ab\u6fc0\u6d3b\u7684\u7a97\u53e3\u3002\u4f8b\u5982\n<\/code><\/pre>\n<p>(let ((live-window (selected-window)))<\/p>\n<pre><code>(when (windowp live-window)\n    (message &quot;\u8fd9\u662f\u4e00\u4e2a\u7a97\u53e3&quot;))\n(when (window-live-p live-window)\n    (message &quot;\u8fd9\u662f\u4e00\u4e2a\u6fc0\u6d3b\u7684\u7a97\u53e3&quot;)))<\/code><\/pre>\n<pre><code>\n`windowp` \u548c `window-live-p` \u7686\u4e3a Elisp \u8c13\u8bcd\u51fd\u6570\uff0c\u5206\u522b\u7528\u4e8e\u5224\u5b9a\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u4e3a\u7a97\u53e3\u4ee5\u53ca\u662f\u5426\u4e3a\u6fc0\u6d3b\u7684\u7a97\u53e3\u3002`when` \u8868\u8fbe\u5f0f\uff0c\u60f3\u5fc5\u4f60\u8fd8\u8bb0\u5f97\uff0c\u5b83\u8868\u8fbe\u300c\u82e5\u2026\u2026\u4e3a\u771f\uff0c\u5219\u2026\u2026\u300d\u7684\u903b\u8f91\u3002\n\n\u5982\u540c\u603b\u6709\u4e00\u4e2a\u7f13\u51b2\u533a\u5bf9\u8c61\u662f\u5f53\u524d\u7684\uff0c\u4e5f\u603b\u6709\u4e00\u4e2a\u7a97\u53e3\u662f\u6fc0\u6d3b\u7684\u3002\u5728\u6fc0\u6d3b\u7684\u7a97\u53e3\u91cc\uff0c\u53ef\u4ee5\u4f7f\u7528 `switch-to-buffer` \u5c06\u6307\u5b9a\u7684\u7f13\u51b2\u533a\u5bf9\u8c61\u5448\u73b0\u4e8e\u7a97\u53e3\u4e2d\u5e76\u4f7f\u4e4b\u6210\u4e3a\u5f53\u524d\u7f13\u51b2\u533a\u3002\u4f8b\u5982\n<\/code><\/pre>\n<p>(let ((foo (generate-new-buffer &#8220;Foo&#8221;)))<\/p>\n<pre><code>(switch-to-buffer foo)\n(set-visited-file-name &quot;\/tmp\/foo.txt&quot;))<\/code><\/pre>\n<pre><code>\n\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u4e0e `(find-file &quot;\/tmp\/foo.txt&quot;)` \u7b49\u6548\u3002\n\n\u4e5f\u8bb8\u4f60\u8fd8\u8bb0\u5f97 `C-x 2` \u548c `C-x 3`\uff0c\u5b83\u4eec\u53ef\u4ee5\u6784\u9020\u65b0\u7a97\u53e3\uff0c\u5b83\u4eec\u5206\u522b\u7ed1\u5b9a\u51fd\u6570 `split-window-right` \u548c `split-window-below`\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5728 Elisp \u7a0b\u5e8f\u91cc\uff0c\u53ef\u4ee5\u5229\u7528\u8fd9\u4e24\u4e2a\u51fd\u6570\u521b\u5efa\u65b0\u7a97\u53e3\uff0c\u5e76\u4f7f\u7528 `select-window` \u51fd\u6570\uff08\u6ce8\u610f\uff0c\u5b83\u4e0d\u662f `selected-widow` \u51fd\u6570\uff09\u5c06\u5176\u6fc0\u6d3b\u3002\u4f8b\u5982\n<\/code><\/pre>\n<p>(let ((new-window (split-window-below)))<\/p>\n<pre><code>(select-window new-window))<\/code><\/pre>\n<pre><code>\n\u5bf9\u4e0a\u8ff0\u8868\u8fbe\u5f0f\u6c42\u503c\uff0c\u4ea7\u751f\u7684\u6548\u679c\u662f\uff0c\u5f53\u524d\u7a97\u53e3\u4ece\u6b63\u4e2d\u95f4\u88ab\u6a2a\u5411\u4e00\u5206\u4e3a\u4e8c\uff0c\u4e0a\u65b9\u662f\u539f\u6709\u7a97\u53e3\uff0c\u4e0b\u65b9\u662f\u65b0\u5efa\u7a97\u53e3\uff0c\u4e14\u8f93\u5165\u7126\u70b9\u843d\u5728\u4e0b\u65b9\u7a97\u53e3\u91cc\u3002\n\n\u7ed3\u5408\u4e0a\u8ff0\u7f13\u51b2\u533a\u7684\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba9\u521b\u5efa\u65b0\u7a97\u53e3\u7684\u793a\u4f8b\u66f4\u4e3a\u751f\u52a8\u3002\u4f8b\u5982\uff0c\u521b\u7acb\u7f13\u51b2\u533a\uff0c\u5c06\u5176\u5173\u8054\u5230\u67d0\u4e2a\u6587\u4ef6\uff0c\u7136\u540e\u4e3a\u8be5\u7f13\u51b2\u533a\u65b0\u5efa\u7a97\u53e3\u3002\n<\/code><\/pre>\n<p>(let ((foo (generate-new-buffer &#8220;Foo&#8221;))<\/p>\n<pre><code>  (foo-win (split-window-below)))\n(select-window foo-win)\n(switch-to-buffer foo)\n(set-visited-file-name &quot;\/tmp\/foo.txt&quot;))<\/code><\/pre>\n<pre><code>\n![\u65b0\u5efa\u7f13\u51b2\u533a\u5e76\u8d4b\u4e4b\u4ee5\u7a97\u53e3](\/img\/bVdjLjT)\n\n# \u603b\u7ed3\n<\/code><\/pre>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000046616800\">https:\/\/segmentfault.com\/a\/1190000046616800<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>=&gt; \u4e0a\u4e00\u7bc7\uff1aEmacs\uff1a\u6211\u66fe\u4e3a\u4f60\u7559\u4e0b\u9000\u8def\u2026\u2026 \u524d\u8a00 \u6211\u4eec\u603b\u662f\u4e60\u60ef\u4e8e\u8bf4\uff0c\u7528 Emacs \u7f16\u8f91\u67d0\u6587\u4ef6\u3002\u5bf9\u4e8e [&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-10020819","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\/10020819","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=10020819"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020819\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}