{"id":10006706,"date":"2022-10-19T21:17:51","date_gmt":"2022-10-19T13:17:51","guid":{"rendered":"https:\/\/ityet.com\/?p=10006706"},"modified":"2022-10-19T21:17:51","modified_gmt":"2022-10-19T13:17:51","slug":"mysql-%e6%89%b9%e9%87%8f%e6%93%8d%e4%bd%9c%ef%bc%8c%e4%b8%80%e6%ac%a1%e6%8f%92%e5%85%a5%e5%a4%9a%e5%b0%91%e8%a1%8c%e6%95%b0%e6%8d%ae%e6%95%88%e7%8e%87%e6%9c%80%e9%ab%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006706","title":{"rendered":"MySQL \u6279\u91cf\u64cd\u4f5c\uff0c\u4e00\u6b21\u63d2\u5165\u591a\u5c11\u884c\u6570\u636e\u6548\u7387\u6700\u9ad8\uff1f"},"content":{"rendered":"

\u4e00\u3001\u524d\u8a00<\/h2>\n

\u6211\u4eec\u5728\u64cd\u4f5c\u5927\u578b\u6570\u636e\u8868\u6216\u8005\u65e5\u5fd7\u6587\u4ef6\u7684\u65f6\u5019\u7ecf\u5e38\u4f1a\u9700\u8981\u5199\u5165\u6570\u636e\u5230\u6570\u636e\u5e93\uff0c\u90a3\u4e48\u6700\u5408\u9002\u7684\u65b9\u6848\u5c31\u662f\u6570\u636e\u5e93\u7684\u6279\u91cf\u63d2\u5165\u3002\u53ea\u662f\u6211\u4eec\u5728\u6267\u884c\u6279\u91cf\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u4e00\u6b21\u63d2\u5165\u591a\u5c11\u6570\u636e\u624d\u5408\u9002\u5462\uff1f<\/p>\n

\u5047\u5982\u9700\u8981\u63d2\u5165\u7684\u6570\u636e\u6709\u767e\u4e07\u6761\uff0c\u90a3\u4e48\u4e00\u6b21\u6279\u91cf\u63d2\u5165\u591a\u5c11\u6761\u7684\u65f6\u5019\uff0c\u6548\u7387\u4f1a\u9ad8\u4e00\u4e9b\u5462\uff1f\u8fd9\u91cc\u535a\u4e3b\u548c\u5927\u5bb6\u4e00\u8d77\u63a2\u8ba8\u4e0b\u8fd9\u4e2a\u95ee\u9898\uff0c\u5e94\u7528\u73af\u5883\u4e3a\u6279\u91cf\u63d2\u5165\u6570\u636e\u5230\u4e34\u65f6\u8868\u3002<\/p>\n

\u4e8c\u3001\u6279\u91cf\u63d2\u5165\u524d\u51c6\u5907<\/h2>\n

\u535a\u4e3b\u672c\u5730\u539f\u672c\u662f\u5faa\u73af\u67e5\u51fa\u6765\u7684\u6570\u636e\uff0c\u7136\u540e\u6bcf1000\u6761\u63d2\u5165\u4e00\u6b21\uff0c\u76f4\u81f3\u5b8c\u6210\u63d2\u5165\u64cd\u4f5c\u3002\u4f46\u662f\u4e3a\u4ec0\u4e48\u8981\u8bbe\u7f6e1000\u6761\u5462\uff0c\u5b9e\u4e0d\u76f8\u7792\uff0c\u8fd9\u662f\u56e0\u4e3a\u9879\u76ee\u91cc\u7684\u5176\u4ed6\u6279\u91cf\u63d2\u5165\u90fd\u662f\u4e00\u6b21\u63d21000\u6761\u3002\u3002\u6c57\uff0c\u535a\u4e3b\u4e0d\u670d\uff0c\u6240\u4ee5\u60f3\u8981\u6d4b\u8bd5\u4e0b\u3002<\/p>\n

\u9996\u5148\u662f\u67e5\u770b\u5f53\u524d\u6570\u636e\u5e93\u7684\u7248\u672c\uff0c\u6bd5\u7adf\u5404\u4e2a\u7248\u672c\u4e4b\u95f4\u5b58\u5728\u5dee\u5f02\uff0c\u8131\u79bb\u7248\u672c\u8bb2\u6570\u636e\u5e93\u5c31\u662f\u800d\u6d41\u6c13\uff08\u4ee5\u524d\u6ca1\u5c11\u800d\u554a\uff09\uff1a<\/p>\n

mysql> select version();\n+------------+\n| version()  |\n+------------+\n| 5.6.34-log |\n+------------+\n1 row in set (0.00 sec)<\/code><\/pre>\n
1\u3001\u63d2\u5165\u5230\u6570\u636e\u8868\u7684\u5b57\u6bb5<\/h3>\n
\u5bf9\u4e8e\u624b\u52a8\u521b\u5efa\u7684\u4e34\u65f6\u8868\u6765\u8bf4\uff0c\u5b57\u6bb5\u5f53\u7136\u662f\u8d8a\u5c11\u8d8a\u597d\uff0c\u800c\u4e14\u5b57\u6bb5\u5360\u7528\u7684\u7a7a\u95f4\u8981\u5c3d\u91cf\u5c0f\u4e00\u4e9b\uff0c\u8fd9\u6837\u4e34\u65f6\u8868\u4e0d\u81f3\u4e8e\u592a\u5927\uff0c\u5f71\u54cd\u8868\u64cd\u4f5c\u7684\u6027\u80fd\u3002\u8fd9\u91cc\u9700\u8981\u63d2\u5165\u7684\u5b57\u6bb5\u662f\uff1a<\/p>\n
\u5b57\u6bb51 int(10)\n\u5b57\u6bb52 int(10)\n\u5b57\u6bb53 int(10)\n\u5b57\u6bb54 varchar(10)<\/code><\/pre>\n
\u6211\u4eec\u4e00\u5171\u63d2\u5165\u56db\u4e2a\u5b57\u6bb5\uff0c\u5206\u522b\u662f3\u4e2aint\u7c7b\u578b\u7684\uff0c\u4e00\u4e2avarchar\u7c7b\u578b\u7684\uff0c\u6574\u4f53\u6765\u8bf4\u8fd9\u4e9b\u5b57\u6bb5\u90fd\u6bd4\u8f83\u5c0f\uff0c\u5360\u7528\u7684\u5185\u5b58\u7a7a\u95f4\u4f1a\u5c0f\u4e00\u4e9b\u3002<\/p>\n
2\u3001\u8ba1\u7b97\u4e00\u884c\u5b57\u6bb5\u5360\u7528\u7684\u7a7a\u95f4<\/h3>\n
\u5bf9\u4e8einnodb\u5f15\u64ce\u6765\u8bf4\uff0cint\u7c7b\u578b\u53ef\u4ee5\u5b58\u50a84\u4e2a\u5b57\u8282\uff0c\u91cc\u9762\u7684Int(M)<\/code>\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5b58\u50a8\u5b57\u8282\u7684\u5927\u5c0f\uff0c\u8fd9\u4e2aM\u53ea\u662f\u6570\u636e\u7684\u5c55\u793a\u4f4d\u6570\uff0c\u548cmysql\u7684ZEROFILL\u5c5e\u6027\u6709\u5173\uff0c\u5373\u5728\u6570\u5b57\u957f\u5ea6\u4e0d\u591f\u7684\u6570\u636e\u524d\u9762\u586b\u51450\uff0c\u4ee5\u8fbe\u5230\u8bbe\u5b9a\u7684\u957f\u5ea6\u3002\u6b64\u5904\u4e0d\u591a\u8bf4\uff0c\u60f3\u8981\u4e86\u89e3\u7684\u670b\u53cb\u53ef\u4ee5\u767e\u5ea6\u4e00\u4e0b\uff0c\u8fd8\u662f\u5f88\u6709\u610f\u601d\u7684\u3002<\/p>\n
varchar\uff0810\uff09<\/code>\u4ee3\u8868\u53ef\u4ee5\u5b58\u50a810\u4e2a\u5b57\u7b26\uff0c\u4e0d\u7ba1\u662f\u82f1\u6587\u8fd8\u662f\u4e2d\u6587\uff0c\u6700\u591a\u90fd\u662f10\u4e2a\uff0c\u8fd9\u90e8\u5206\u5047\u8bbe\u5b58\u50a8\u7684\u662f\u4e2d\u6587\uff0c\u5728utf-8mb4\u4e0b\uff0c10\u4e2a\u4e2d\u6587\u5360\u752810*4 = 40<\/code>\u4e2a\u5b57\u8282\u90a3\u4e48\u4e00\u884c\u6570\u636e\u6700\u591a\u5360\u7528\uff1a4+4+4+40 = 52<\/code>\u5b57\u8282<\/p>\n
3\u3001\u5728\u6570\u636e\u91cc\u505a\u63d2\u5165\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u6574\u4f53\u65f6\u95f4\u7684\u5206\u914d<\/h3>\n
\u94fe\u63a5\u8017\u65f6 \uff0830%\uff09\n\u53d1\u9001query\u5230\u670d\u52a1\u5668 \uff0820%\uff09\n\u89e3\u6790query \uff0820%\uff09\n\u63d2\u5165\u64cd\u4f5c \uff0810% * \u8bcd\u6761\u6570\u76ee\uff09\n\u63d2\u5165index \uff0810% * Index\u7684\u6570\u76ee\uff09\n\u5173\u95ed\u94fe\u63a5 \uff0810%\uff09<\/code><\/pre>\n
\u4ece\u8fd9\u91cc\u53ef\u4ee5\u770b\u51fa\u6765\uff0c\u771f\u6b63\u8017\u65f6\u7684\u4e0d\u662f\u64cd\u4f5c\uff0c\u800c\u662f\u94fe\u63a5\uff0c\u89e3\u6790\u7684\u8fc7\u7a0b\u3002\u5355\u6761sql\u7684\u8bdd\uff0c\u4f1a\u5728\u94fe\u63a5\uff0c\u89e3\u6790\u90e8\u5206\u8017\u8d39\u5927\u91cf\u7684\u65f6\u95f4\uff0c\u56e0\u6b64\u901f\u5ea6\u4f1a\u5f88\u6162\uff0c\u6240\u4ee5\u6211\u4eec\u4e00\u822c\u90fd\u662f\u91c7\u7528\u6279\u91cf\u63d2\u5165\u7684\u64cd\u4f5c\uff0c\u4e89\u53d6\u5728\u4e00\u6b21\u94fe\u63a5\u91cc\u9762\u5199\u5165\u5c3d\u53ef\u80fd\u591a\u7684\u6570\u636e\uff0c\u4ee5\u6b64\u6765\u63d0\u5347\u63d2\u5165\u7684\u901f\u5ea6\u3002\u4f46\u662f\u8fd9\u4e2a\u5c3d\u53ef\u80fd\u591a\u7684\u6570\u636e\u662f\u591a\u5c11\u5462\uff1f\u4e00\u6b21\u5230\u5e95\u63d2\u5165\u591a\u5c11\u624d\u5408\u9002\u5462\uff1f<\/p>\n
\u4e09\u3001\u6279\u91cf\u63d2\u5165\u6570\u636e\u6d4b\u8bd5<\/h2>\n
\u5f00\u59cb\u6d4b\u8bd5\uff0c\u4f46\u662f\u4e00\u5f00\u59cb\u63d2\u5165\u591a\u5c11\u662f\u5408\u9002\u7684\u5462\uff0c\u662f\u5426\u6709\u4e0a\u9650\uff1f\u67e5\u8be2mysql\u624b\u518c\uff0c\u6211\u4eec\u77e5\u9053sql\u8bed\u53e5\u662f\u6709\u5927\u5c0f\u9650\u5236\u7684\u3002<\/p>\n
1\u3001SQL\u8bed\u53e5\u7684\u5927\u5c0f\u9650\u5236<\/h3>\n
my.ini<\/code> \u91cc\u6709 max_allowed_packet<\/code> \u8fd9\u4e2a\u53c2\u6570\u63a7\u5236\u901a\u4fe1\u7684 packet \u5927\u5c0f\u3002mysql\u9ed8\u8ba4\u7684sql\u8bed\u53e5\u7684\u6700\u5927\u9650\u5236\u662f1M\uff08mysql5.7\u7684\u5ba2\u6237\u7aef\u9ed8\u8ba4\u662f16M\uff0c\u670d\u52a1\u7aef\u9ed8\u8ba4\u662f4M\uff09\uff0c\u53ef\u4ee5\u6839\u636e\u8bbe\u7f6e\u67e5\u770b\u3002\u5b98\u65b9\u89e3\u91ca\u662f\u9002\u5f53\u589e\u5927 max_allowed_packet<\/code> \u53c2\u6570\u53ef\u4ee5\u4f7fclient\u7aef\u5230server\u7aef\u4f20\u9012\u5927\u6570\u636e\u65f6\uff0c\u7cfb\u7edf\u80fd\u591f\u5206\u914d\u66f4\u591a\u7684\u6269\u5c55\u5185\u5b58\u6765\u5904\u7406\u3002<\/p>\n
\u5b98\u65b9\u624b\u518c\uff1ahttps:\/\/dev.mysql.com\/doc\/ref…<\/a><\/p><\/blockquote>\n
2\u3001\u67e5\u770b\u670d\u52a1\u5668\u4e0a\u7684\u53c2\u6570\uff1a<\/h3>\n
mysql> show variables like '%max_allowed_packet%';\n+--------------------------+------------+\n| Variable_name            | Value      |\n+--------------------------+------------+\n| max_allowed_packet       | 33554432   |\n| slave_max_allowed_packet | 1073741824 |\n+--------------------------+------------+\n2 rows in set (0.00 sec)<\/code><\/pre>\n
33554432\u5b57\u8282 = 32M<\/code> \uff0c\u4e5f\u5c31\u662f\u89c4\u5b9a\u5927\u5c0f\u4e0d\u80fd\u8d85\u8fc732M\u3002<\/p>\n
3\u3001\u8ba1\u7b97\u4e00\u6b21\u80fd\u63d2\u5165\u7684\u6700\u5927\u884c\u8bb0\u5f55<\/h3>\n
1M\u8ba1\u7b97\u7684\u8bdd\uff0c(1024*1024)\/52 \u2248 20165<\/code> \uff0c\u4e3a\u4e86\u9632\u6b62\u6ea2\u51fa\uff0c\u6700\u5927\u53ef\u4e00\u6b21\u6027\u63d2\u516520000\u6761\uff08\u6839\u636e\u81ea\u5df1\u7684\u914d\u7f6e\u548csql\u8bed\u53e5\u5927\u5c0f\u8ba1\u7b97\uff09\u3002\u90a3\u4e4832M\u7684\u8bdd\u5c31\u662f\uff1a20000 *32 = 640000<\/code> \u4e5f\u5c31\u662f64W\u6761\u3002<\/p>\n
4\u3001\u6d4b\u8bd5\u63d2\u5165\u6570\u636e\u6bd4\u5bf9<\/h3>\n
\uff081\uff09\u63d2\u516511W\u6761\u6570\u636e\uff0c\u6309\u7167\u6bcf\u6b2110,600,1000,20000,80000<\/code>\u6765\u6d4b\u8bd5\uff1a<\/h5>\n
+---------------+\n| count(c1.uin) |\n+---------------+\n|         110000 |\n+---------------+<\/code><\/pre>\n
\u6709\u4e2a\u535a\u5ba2\u8bf4\u4e00\u6b21\u63d2\u516510\u6761\u6700\u5feb\uff0c\uff0c\u6211\u89c9\u5f97\u4e00\u6b21\u63d2\u7684\u6709\u70b9\u5c11\uff0c\u54b1\u4eec\u8bd5\u8bd5<\/p>\n
\u8fd9\u4e2a\u535a\u4e3b\u6d4b\u8bd5\u540e\uff0c\u8ba4\u4e3a\u4e00\u6b21\u63d210\u6761\u662f\u6027\u80fd\u6700\u5feb\u7684\uff0c\u4ed6\u7684\u6bcf\u6761\u8bb0\u5f55\u662f3kb\uff0c\u76f8\u5f53\u4e8e\u6211\u768459\u884c\u6570\u636e\uff0c\u53d6\u4e2a\u6574\u657060\uff0c\u90a3\u4e48\u5bf9\u4e8e\u8fd9\u4e2a\u535a\u4e3b\u662f\u63d2\u516510\u6761\uff0c\u5bf9\u6211\u6765\u8bf4\u63d2\u5165\uff1a600\uff0c\u8fd9\u51e0\u4e2a\u503c\u90fd\u8bd5\u8bd5\u3002<\/p>\n
\u8017\u65f6\uff1a<\/p>\n
11W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516510\u6761\u3002\u8017\u65f6\uff1a2.361s\n11W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u5165600\u6761\u3002\u8017\u65f6\uff1a0.523s\n11W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u51651000\u6761\u3002\u8017\u65f6\uff1a0.429s\n11W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516520000\u6761\u3002\u8017\u65f6\uff1a0.426s\n11W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516580000\u6761\u3002\u8017\u65f6\uff1a0.352s<\/code><\/pre>\n
\u4ece\u8fd9\u90e8\u5206\u770b\uff0c\u968f\u7740\u6279\u91cf\u63d2\u5165\u7684\u589e\u52a0\uff0c\u901f\u5ea6\u7565\u6709\u63d0\u5347\uff0c\u6700\u8d77\u7801\u4e00\u6b21\u63d210\u6761\u5e94\u8be5\u4e0d\u662f\u6700\u4f73\u7684\u3002\u63d2\u5165\u6570\u636e\u91cf\u591a\uff0c\u51cf\u5c11\u4e86\u5faa\u73af\u7684\u6b21\u6570\uff0c\u4e5f\u5c31\u662f\u5728\u6570\u636e\u5e93\u94fe\u63a5\u90e8\u5206\u7684\u8017\u65f6\u6709\u6240\u51cf\u5c11\uff0c\u53ea\u662f\u8fd9\u4e2a8W\u5e76\u4e0d\u662f\u6781\u9650\u6570\u636e\uff0c\u5177\u4f53\u4e00\u6b21\u63d2\u5165\u591a\u5c11\u6761\uff0c\u8fd8\u6709\u5f85\u53c2\u8003\u3002<\/p>\n
\uff082\uff09\u52a0\u5927\u6570\u636e\u91cf\u523024w<\/h5>\n
+---------------+\n| count(c1.uin) |\n+---------------+\n|        241397 |\n+---------------+<\/code><\/pre>\n
\u8017\u65f6\uff1a<\/p>\n
24W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516510\u6761\u3002\u8017\u65f6\uff1a4.445s\n24W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u5165600\u6761\u3002\u8017\u65f6\uff1a1.187s\n24W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u51651000\u6761\u3002\u8017\u65f6\uff1a1.13s\n24W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516520000\u6761\u3002\u8017\u65f6\uff1a0.933s\n24W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516580000\u6761\u3002\u8017\u65f6\uff1a0.753s<\/code><\/pre>\n
\u4e00\u6b21\u63d2\u516524W\u53cd\u800c\u6027\u80fd\u6700\u4f73\uff0c\u8fd9\u4e48\u4ee3\u8868\u6211\u4eec\u7684\u6d4b\u8bd5\u6570\u636e\u91cf\u4f9d\u7136\u4e0d\u591f\u3002<\/p>\n
\uff083\uff09\u52a0\u5927\u6d4b\u8bd5\u91cf\u523042W<\/h5>\n
+---------------+\n| count(c1.uin) |\n+---------------+\n|        418859 |<\/code><\/pre>\n
\u8017\u65f6\uff1a<\/p>\n
42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u51651000\u6761\u3002\u8017\u65f6\uff1a2.216s\n42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516580000\u6761\u3002\u8017\u65f6\uff1a1.777s\n42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516516W\u6761\u3002\u8017\u65f6\uff1a1.523s\n42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516520W\u6761\u3002\u8017\u65f6\uff1a1.432s\n42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516530W\u6761\u3002\u8017\u65f6\uff1a1.362s\n42W\u7684\u6570\u636e\uff0c\u6bcf\u6b21\u63d2\u516540W\u6761\u3002\u8017\u65f6\uff1a1.764s<\/code><\/pre>\n
\u968f\u7740\u63d2\u5165\u91cf\u7684\u589e\u52a0\uff0c\u6279\u91cf\u63d2\u5165\u6761\u6570\u591a\u4e86\u4e4b\u540e\uff0c\u6027\u80fd\u662f\u6709\u6240\u63d0\u5347\u7684\u3002\u4f46\u662f\u5728\u8fbe\u523030W\u4ee5\u4e0a\u4e4b\u540e\uff0c\u6548\u7387\u53cd\u800c\u6709\u6240\u4e0b\u964d\u3002\u8fd9\u90e8\u5206\u6211\u7684\u7406\u89e3\u662fmysql\u662f\u8981\u5206\u914d\u4e00\u5b9a\u7684\u5185\u5b58\u7ed9\u4f20\u8fc7\u6765\u7684\u6570\u636e\u5305\u4f7f\u7528\uff0c\u5f53\u6279\u91cf\u63d2\u5165\u7684\u6570\u636e\u91cf\u5230\u8fbe\u4e00\u5b9a\u7a0b\u5ea6\u4e4b\u540e\uff0c\u4e00\u6b21\u63d2\u5165\u64cd\u4f5c\u7684\u5f00\u9500\u5c31\u5f88\u8017\u8d39\u5185\u5b58\u4e86\u3002<\/p>\n
\u4e2a\u4eba\u611f\u89c9\uff0c\u6700\u4f73\u5927\u5c0f\u662fmax_allowed_packet<\/code>\u7684\u4e00\u534a\uff0c\u4e5f\u5c31\u662f\u6781\u9650\u80fd\u63d2\u516564W\uff0c\u9009\u752832W\u4e5f\u8bb8\u6027\u80fd\u4f1a\u66f4\u597d\u4e00\u4e9b\uff0c\u540c\u65f6\u4e5f\u4e0d\u4f1a\u5bf9mysql\u7684\u5176\u4ed6\u64cd\u4f5c\u4ea7\u751f\u592a\u5927\u7684\u5f71\u54cd\u3002<\/p><\/blockquote>\n
5\u3001\u5982\u679c\u63d2\u5165\u7684\u503c\u5c31\u662fsql\u8bed\u53e5\u9650\u5236\u7684\u6700\u5927\u503c\uff0c\u90a3\u4e48\u6027\u80fd\u771f\u7684\u597d\u5417\uff1f<\/h3>\n
\u535a\u4e3b\u75af\u72c2\u8c37\u6b4c\u767e\u5ea6\uff0c\u90fd\u6ca1\u6709\u627e\u5230\u6709\u4eba\u6765\u5177\u4f53\u7684\u8bf4\u4e00\u4e0b\u8fd9\u4e2a\u95ee\u9898\uff0c\u4e0d\u8fc7\u5728\u9ad8\u6027\u80fdmysql\u91cc\u9762\u53d1\u73b0\u4e00\u53e5\u8bdd\uff1a<\/p>\n
\u5ba2\u6237\u7aef\u7528\u4e00\u4e2a\u5355\u72ec\u7684\u6570\u636e\u5305\u5c06\u67e5\u8be2\u8bf7\u6c42\u53d1\u9001\u7ed9\u670d\u52a1\u5668\uff0c\u6240\u4ee5\u5f53\u67e5\u8be2\u8bed\u53e5\u5f88\u957f\u7684\u65f6\u5019\uff0c\u9700\u8981\u8bbe\u7f6emax_allowed_packet<\/code>\u53c2\u6570\u3002\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u67e5\u8be2\u5b9e\u5728\u662f\u592a\u5927\uff0c\u670d\u52a1\u7aef\u4f1a\u62d2\u7edd\u63a5\u6536\u66f4\u591a\u6570\u636e\u5e76\u629b\u51fa\u5f02\u5e38\u3002\u4e0e\u4e4b\u76f8\u53cd\u7684\u662f\uff0c\u670d\u52a1\u5668\u54cd\u5e94\u7ed9\u7528\u6237\u7684\u6570\u636e\u901a\u5e38\u4f1a\u5f88\u591a\uff0c\u7531\u591a\u4e2a\u6570\u636e\u5305\u7ec4\u6210\u3002\u4f46\u662f\u5f53\u670d\u52a1\u5668\u54cd\u5e94\u5ba2\u6237\u7aef\u8bf7\u6c42\u65f6\uff0c\u5ba2\u6237\u7aef\u5fc5\u987b\u5b8c\u6574\u7684\u63a5\u6536\u6574\u4e2a\u8fd4\u56de\u7ed3\u679c\uff0c\u800c\u4e0d\u80fd\u7b80\u5355\u7684\u53ea\u53d6\u524d\u9762\u51e0\u6761\u7ed3\u679c\uff0c\u7136\u540e\u8ba9\u670d\u52a1\u5668\u505c\u6b62\u53d1\u9001\u3002\u56e0\u800c\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u5c3d\u91cf\u4fdd\u6301\u67e5\u8be2\u7b80\u5355\u4e14\u53ea\u8fd4\u56de\u5fc5\u9700\u7684\u6570\u636e\uff0c\u51cf\u5c0f\u901a\u4fe1\u95f4\u6570\u636e\u5305\u7684\u5927\u5c0f\u548c\u6570\u91cf\u662f\u4e00\u4e2a\u975e\u5e38\u597d\u7684\u4e60\u60ef\uff0c\u8fd9\u4e5f\u662f\u67e5\u8be2\u4e2d\u5c3d\u91cf\u907f\u514d\u4f7f\u7528SELECT *<\/code>\u4ee5\u53ca\u52a0\u4e0aLIMIT<\/code>\u9650\u5236\u7684\u539f\u56e0\u4e4b\u4e00\u3002<\/p><\/blockquote>\n
\u540e\u9762\u901a\u8fc7\u5404\u79cd\u767e\u5ea6\uff0c\u535a\u4e3b\u89c9\u5f97\u6700\u5927\u53ea\u662f\u4ee3\u8868\u4f20\u8f93\u6570\u636e\u5305\u7684\u6700\u5927\u957f\u5ea6\uff0c\u4f46\u6027\u80fd\u662f\u4e0d\u662f\u6700\u4f73\u5c31\u8981\u4ece\u5404\u4e2a\u65b9\u9762\u6765\u5206\u6790\u4e86\u3002\u6bd4\u5982\u4e0b\u9762\u5217\u51fa\u7684\u63d2\u5165\u7f13\u51b2\uff0c\u4ee5\u53ca\u63d2\u5165\u7d22\u5f15\u65f6\u5bf9\u4e8e\u7f13\u51b2\u533a\u7684\u5269\u4f59\u7a7a\u95f4\u9700\u6c42\uff0c\u4ee5\u53ca\u4e8b\u52a1\u5360\u6709\u7684\u5185\u5b58\u7b49\uff0c\u90fd\u4f1a\u5f71\u54cd\u6279\u91cf\u63d2\u5165\u7684\u6027\u80fd\u3002<\/p>\n
\u56db\u3001\u5176\u4ed6\u5f71\u54cd\u63d2\u5165\u6027\u80fd\u7684\u56e0\u7d20<\/h2>\n
1\u3001\u9996\u5148\u662f\u63d2\u5165\u7684\u65f6\u5019\uff0c\u8981\u6ce8\u610f\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u4f7f\u7528\u60c5\u51b5<\/h3>\n
\u5728\u5206\u6790\u6e90\u7801\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6709\u4e00\u53e5\u8bdd\uff1a\u5982\u679cbuffer pool<\/code>\u4f59\u91cf\u4e0d\u8db325%\uff0c\u63d2\u5165\u5931\u8d25\uff0c\u8fd4\u56deDB_LOCK_TABLE_FULL<\/code>\u3002\u8fd9\u4e2a\u9519\u8bef\u5e76\u4e0d\u662f\u76f4\u63a5\u62a5\u9519\uff1amax_allowed_packet<\/code> \u4e0d\u591f\u5927\u4e4b\u7c7b\u7684\uff0c\u8fd9\u4e2a\u9519\u8bef\u662f\u56e0\u4e3a\u5bf9\u4e8einnodb\u5f15\u64ce\u6765\u8bf4\uff0c\u4e00\u6b21\u63d2\u5165\u662f\u6d89\u53ca\u5230\u4e8b\u52a1\u548c\u9501\u7684\uff0c\u5728\u63d2\u5165\u7d22\u5f15\u7684\u65f6\u5019\uff0c\u8981\u5224\u65ad\u7f13\u51b2\u533a\u7684\u5269\u4f59\u60c5\u51b5\uff0c\u6240\u4ee5\u63d2\u5165\u5e76\u4e0d\u80fd\u4ec5\u4ec5\u53ea\u8003\u8651max_allowed_packet<\/code>\u7684\u95ee\u9898\uff0c\u4e5f\u8981\u8003\u8651\u5230\u7f13\u51b2\u533a\u7684\u5927\u5c0f\u3002<\/p>\n
2\u3001\u63d2\u5165\u7f13\u5b58<\/h3>\n
\u53e6\u5916\u5bf9\u4e8einnodb\u5f15\u64ce\u6765\u8bf4\uff0c\u56e0\u4e3a\u5b58\u5728\u63d2\u5165\u7f13\u5b58\uff08Insert Buffer\uff09\u8fd9\u4e2a\u6982\u5ff5\uff0c\u6240\u4ee5\u5728\u63d2\u5165\u7684\u65f6\u5019\u4e5f\u662f\u8981\u8017\u8d39\u4e00\u5b9a\u7684\u7f13\u51b2\u6c60\u5185\u5b58\u7684\u3002\u5f53\u5199\u5bc6\u96c6\u7684\u60c5\u51b5\u4e0b\uff0c\u63d2\u5165\u7f13\u51b2\u4f1a\u5360\u7528\u8fc7\u591a\u7684\u7f13\u51b2\u6c60\u5185\u5b58\uff0c\u9ed8\u8ba4\u6700\u5927\u53ef\u4ee5\u5360\u7528\u52301\/2\u7684\u7f13\u51b2\u6c60\u5185\u5b58\uff0c\u5f53\u63d2\u5165\u7f13\u51b2\u5360\u7528\u592a\u591a\u7f13\u51b2\u6c60\u5185\u5b58\u7684\u60c5\u51b5\u4e0b\uff0c\u4f1a\u5f71\u54cd\u5230\u5176\u4ed6\u7684\u64cd\u4f5c\u3002<\/p>\n
\u4e5f\u5c31\u662f\u8bf4\uff0c\u63d2\u5165\u7f13\u51b2\u53d7\u5230\u7f13\u51b2\u6c60\u5927\u5c0f\u7684\u5f71\u54cd\uff0c\u7f13\u51b2\u6c60\u5927\u5c0f\u4e3a\uff1a<\/p>\n
mysql> show variables like 'innodb_buffer_pool_size';\n+-------------------------+-----------+\n| Variable_name           | Value     |\n+-------------------------+-----------+\n| innodb_buffer_pool_size | 134217728 |\n+-------------------------+-----------+<\/code><\/pre>\n
\u6362\u7b97\u540e\u7684\u7ed3\u679c\u4e3a\uff1a128M\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u63d2\u5165\u7f13\u5b58\u6700\u591a\u53ef\u4ee5\u5360\u752864M\u7684\u7f13\u51b2\u533a\u5927\u5c0f\u3002\u8fd9\u4e2a\u5927\u5c0f\u8981\u8d85\u8fc7\u54b1\u4eec\u8bbe\u7f6e\u7684sql\u8bed\u53e5\u5927\u5c0f\uff0c\u6240\u4ee5\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002<\/p>\n
\u8be6\u7ec6\u89e3\u91ca\uff1a<\/p>\n
\u6211\u4eec\u90fd\u77e5\u9053\uff0c\u5728InnoDB\u5f15\u64ce\u4e0a\u8fdb\u884c\u63d2\u5165\u64cd\u4f5c\u65f6\uff0c\u4e00\u822c\u9700\u8981\u6309\u7167\u4e3b\u952e\u987a\u5e8f\u8fdb\u884c\u63d2\u5165\uff0c\u8fd9\u6837\u624d\u80fd\u83b7\u5f97\u8f83\u9ad8\u7684\u63d2\u5165\u6027\u80fd\u3002\u5f53\u4e00\u5f20\u8868\u4e2d\u5b58\u5728\u975e\u805a\u7c07\u7684\u4e14\u4e0d\u552f\u4e00\u7684\u7d22\u5f15\u65f6\uff0c\u5728\u63d2\u5165\u65f6\uff0c\u6570\u636e\u9875\u7684\u5b58\u653e\u8fd8\u662f\u6309\u7167\u4e3b\u952e\u8fdb\u884c\u987a\u5e8f\u5b58\u653e\uff0c\u4f46\u662f\u5bf9\u4e8e\u975e\u805a\u7c07\u7d22\u5f15\u53f6\u8282\u70b9\u7684\u63d2\u5165\u4e0d\u518d\u662f\u987a\u5e8f\u7684\u4e86\uff0c\u8fd9\u65f6\u5c31\u9700\u8981\u79bb\u6563\u7684\u8bbf\u95ee\u975e\u805a\u7c07\u7d22\u5f15\u9875\uff0c\u7531\u4e8e\u968f\u673a\u8bfb\u53d6\u7684\u5b58\u5728\u5bfc\u81f4\u63d2\u5165\u64cd\u4f5c\u6027\u80fd\u4e0b\u964d\u3002<\/p><\/blockquote>\n
InnoDB\u4e3a\u6b64\u8bbe\u8ba1\u4e86Insert Buffer\u6765\u8fdb\u884c\u63d2\u5165\u4f18\u5316\u3002\u5bf9\u4e8e\u975e\u805a\u7c07\u7d22\u5f15\u7684\u63d2\u5165\u6216\u8005\u66f4\u65b0\u64cd\u4f5c\uff0c\u4e0d\u662f\u6bcf\u4e00\u6b21\u90fd\u76f4\u63a5\u63d2\u5165\u5230\u7d22\u5f15\u9875\u4e2d\uff0c\u800c\u662f\u5148\u5224\u65ad\u63d2\u5165\u7684\u975e\u805a\u96c6\u7d22\u5f15\u662f\u5426\u5728\u7f13\u51b2\u6c60\u4e2d\uff0c\u82e5\u5728\uff0c\u5219\u76f4\u63a5\u63d2\u5165\uff1b\u82e5\u4e0d\u5728\uff0c\u5219\u5148\u653e\u5165\u5230\u4e00\u4e2aInsert Buffer<\/code>\u4e2d\u3002<\/p>\n
\u770b\u4f3c\u6570\u636e\u5e93\u8fd9\u4e2a\u975e\u805a\u96c6\u7684\u7d22\u5f15\u5df2\u7ecf\u67e5\u5230\u53f6\u8282\u70b9\uff0c\u800c\u5b9e\u9645\u6ca1\u6709\uff0c\u8fd9\u65f6\u5b58\u653e\u5728\u53e6\u5916\u4e00\u4e2a\u4f4d\u7f6e\u3002\u7136\u540e\u518d\u4ee5\u4e00\u5b9a\u7684\u9891\u7387\u548c\u60c5\u51b5\u8fdb\u884cInsert Buffer<\/code>\u548c\u975e\u805a\u7c07\u7d22\u5f15\u9875\u5b50\u8282\u70b9\u7684\u5408\u5e76\u64cd\u4f5c\u3002\u8fd9\u65f6\u901a\u5e38\u80fd\u591f\u5c06\u591a\u4e2a\u63d2\u5165\u5408\u5e76\u5230\u4e00\u4e2a\u64cd\u4f5c\u4e2d\uff0c\u8fd9\u6837\u5c31\u5927\u5927\u63d0\u9ad8\u4e86\u5bf9\u4e8e\u975e\u805a\u7c07\u7d22\u5f15\u7684\u63d2\u5165\u6027\u80fd\u3002<\/p>\n
3\u3001\u4f7f\u7528\u4e8b\u52a1\u63d0\u5347\u6548\u7387<\/h3>\n
\u8fd8\u6709\u4e00\u79cd\u8bf4\u6cd5\uff0c\u4f7f\u7528\u4e8b\u52a1\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u63d2\u5165\u6548\u7387\uff0c\u8fd9\u662f\u56e0\u4e3a\u8fdb\u884c\u4e00\u4e2aINSERT<\/code>\u64cd\u4f5c\u65f6\uff0cMySQL\u5185\u90e8\u4f1a\u5efa\u7acb\u4e00\u4e2a\u4e8b\u52a1\uff0c\u5728\u4e8b\u52a1\u5185\u624d\u8fdb\u884c\u771f\u6b63\u63d2\u5165\u5904\u7406\u64cd\u4f5c\u3002\u901a\u8fc7\u4f7f\u7528\u4e8b\u52a1\u53ef\u4ee5\u51cf\u5c11\u521b\u5efa\u4e8b\u52a1\u7684\u6d88\u8017\uff0c\u6240\u6709\u63d2\u5165\u90fd\u5728\u6267\u884c\u540e\u624d\u8fdb\u884c\u63d0\u4ea4\u64cd\u4f5c\u3002\u5927\u6982\u5982\u4e0b\uff1a<\/p>\n
START TRANSACTION;\nINSERT INTO `insert_table` (`datetime`, `uid`, `content`, `type`) \n    VALUES ('0', 'userid_0', 'content_0', 0);\nINSERT INTO `insert_table` (`datetime`, `uid`, `content`, `type`) \n    VALUES ('1', 'userid_1', 'content_1', 1);\n...\nCOMMIT;<\/code><\/pre>\n
\u4e8b\u52a1\u9700\u8981\u63a7\u5236\u5927\u5c0f\uff0c\u4e8b\u52a1\u592a\u5927\u53ef\u80fd\u4f1a\u5f71\u54cd\u6267\u884c\u7684\u6548\u7387\u3002MySQL\u6709innodb_log_buffer_size<\/code>\u914d\u7f6e\u9879\uff0c\u8d85\u8fc7\u8fd9\u4e2a\u503c\u4f1a\u628ainnodb\u7684\u6570\u636e\u5237\u5230\u78c1\u76d8\u4e2d\uff0c\u8fd9\u65f6\uff0c\u6548\u7387\u4f1a\u6709\u6240\u4e0b\u964d\u3002\u6240\u4ee5\u6bd4\u8f83\u597d\u7684\u505a\u6cd5\u662f\uff0c\u5728\u6570\u636e\u8fbe\u5230\u8fd9\u4e2a\u8fd9\u4e2a\u503c\u524d\u8fdb\u884c\u4e8b\u52a1\u63d0\u4ea4\u3002<\/p>\n
\u67e5\u770b\uff1ashow variables like '%innodb_log_buffer_size%';<\/code><\/p>\n
+------------------------+----------+\n| Variable_name          | Value    |\n+------------------------+----------+\n| innodb_log_buffer_size | 67108864 |\n+------------------------+----------+<\/code><\/pre>\n
\u5927\u6982\u662f\uff1a64M<\/p>\n
\u8fd9\u79cd\u5199\u6cd5\u548c\u6279\u91cf\u5199\u5165\u7684\u6548\u679c\u5dee\u4e0d\u591a\uff0c\u53ea\u4e0d\u8fc7sql\u8bed\u53e5\u8fd8\u662f\u5355\u53e5\u7684\uff0c\u7136\u540e\u7edf\u4e00\u63d0\u4ea4\u3002\u4e00\u4e2a\u74f6\u9888\u662fSQL\u8bed\u53e5\u7684\u5927\u5c0f\uff0c\u4e00\u4e2a\u74f6\u9888\u662f\u4e8b\u52a1\u7684\u5927\u5c0f\u3002\u5f53\u6211\u4eec\u5728\u63d0\u4ea4sql\u7684\u65f6\u5019\uff0c\u9996\u5148\u662f\u53d7\u5230sql\u5927\u5c0f\u7684\u9650\u5236\uff0c\u5176\u6b21\u662f\u53d7\u5230\u4e8b\u52a1\u5927\u5c0f\u7684\u9650\u5236\u3002\u5728\u5f00\u542f\u4e8b\u52a1\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u6279\u91cf\u63d2\u5165\uff0c\u4f1a\u8282\u7701\u4e0d\u5c11\u4e8b\u52a1\u7684\u5f00\u9500\uff0c\u5982\u679c\u8981\u8ffd\u6c42\u6781\u81f4\u7684\u901f\u5ea6\u7684\u8bdd\uff0c\u5efa\u8bae\u662f\u5f00\u7740\u4e8b\u52a1\u63d2\u5165\u7684\u3002<\/p>\n
\u4e0d\u8fc7\u9700\u8981\u6ce8\u610f\u4e00\u4e0b\uff0c\u5185\u5b58\u662f\u6709\u9650\u4e14\u5171\u4eab\u7684\uff0c\u5982\u679c\u6279\u91cf\u63d2\u5165\u5360\u7528\u592a\u591a\u7684\u4e8b\u52a1\u5185\u5b58\uff0c\u90a3\u4e48\u52bf\u5fc5\u4f1a\u5bf9\u5176\u4ed6\u7684\u4e1a\u52a1\u64cd\u4f5c\u7b49\u6709\u4e00\u5b9a\u7684\u5f71\u54cd\u3002<\/p><\/blockquote>\n
4\u3001\u901a\u8fc7\u914d\u7f6e\u63d0\u5347\u8bfb\u5199\u6027\u80fd<\/h3>\n
\u4e5f\u53ef\u4ee5\u901a\u8fc7\u589e\u5927innodb_buffer_pool_size<\/code> \u7f13\u51b2\u533a\u6765\u63d0\u5347\u8bfb\u5199\u6027\u80fd\uff0c\u53ea\u662f\u7f13\u51b2\u533a\u662f\u8981\u5360\u7528\u5185\u5b58\u7a7a\u95f4\u7684\uff0c\u5185\u5b58\u5f88\u73cd\u8d35\uff0c\u6240\u4ee5\u8fd9\u4e2a\u65b9\u6848\u5728\u5185\u5b58\u5bcc\u88d5\uff0c\u800c\u6027\u80fd\u74f6\u9888\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u8003\u8651\u4e0b\u3002<\/p>\n
5\u3001\u7d22\u5f15\u5f71\u54cd\u63d2\u5165\u6027\u80fd<\/h3>\n
\u5982\u679c\u8868\u4e2d\u5b58\u5728\u591a\u4e2a\u5b57\u6bb5\u7d22\u5f15\uff0c\u5f53\u5bf9\u8868\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u589e\u52a0\u3001\u5220\u9664\u548c\u4fee\u6539\u7684\u65f6\u5019\uff0c\u7d22\u5f15\u4e5f\u8981\u52a8\u6001\u7684\u7ef4\u62a4\u3002\u8fd9\u6837\u5c31\u964d\u4f4e\u4e86\u6570\u636e\u7684\u63d2\u5165\u901f\u5ea6\u3002\u5bf9\u4e8e\u666e\u901a\u7684\u6570\u636e\u8868\uff0c\u4e3b\u952e\u7d22\u5f15\u662f\u80af\u5b9a\u8981\u6709\u7684\uff0c\u60f3\u8981\u52a0\u5feb\u6027\u80fd\u7684\u8bdd\uff0c\u5c31\u662f\u8981\u6709\u5e8f\u63d2\u5165\uff0c\u6bcf\u6b21\u63d2\u5165\u8bb0\u5f55\u90fd\u5728\u7d22\u5f15\u7684\u6700\u540e\u9762\uff0c\u7d22\u5f15\u7684\u5b9a\u4f4d\u6548\u7387\u5f88\u9ad8\uff0c\u5e76\u4e14\u5bf9\u7d22\u5f15\u8c03\u6574\u8f83\u5c0f\u3002\u5982\u679c\u63d2\u5165\u7684\u8bb0\u5f55\u5728\u7d22\u5f15\u4e2d\u95f4\uff0c\u9700\u8981B+tree\u8fdb\u884c\u5206\u88c2\u5408\u5e76\u7b49\u5904\u7406\uff0c\u4f1a\u6d88\u8017\u6bd4\u8f83\u591a\u8ba1\u7b97\u8d44\u6e90\uff0c\u5e76\u4e14\u63d2\u5165\u8bb0\u5f55\u7684\u7d22\u5f15\u5b9a\u4f4d\u6548\u7387\u4f1a\u4e0b\u964d\uff0c\u6570\u636e\u91cf\u8f83\u5927\u65f6\u4f1a\u6709\u9891\u7e41\u7684\u78c1\u76d8\u64cd\u4f5c\u3002<\/p>\n
\u4e94\u3001\u603b\u7ed3<\/h2>\n
\u535a\u4e3b\u7ecf\u8fc7\u6d4b\u8bd5+\u8c37\u6b4c\uff0c\u6700\u7ec8\u662f\u9009\u7528\u7684\u4e00\u6b21\u6279\u91cf\u63d2\u5165\u6570\u636e\u91cf\u4e3amax_allowed_packet<\/code>\u5927\u5c0f\u7684\u4e00\u534a\u3002\u53ea\u662f\u5728\u4e0d\u65ad\u7684\u641c\u7d22\u4e2d\uff0c\u53d1\u73b0\u5f71\u54cd\u63d2\u5165\u6027\u80fd\u7684\u5730\u65b9\u633a\u591a\u7684\uff0c\u5982\u679c\u4ec5\u4ec5\u662f\u62ffmax_allowed_packet<\/code>\u8fd9\u4e2a\u53c2\u6570\u4f5c\u4e3a\u5206\u6790\uff0c\u5176\u5b9e\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u8fd9\u4e2a\u53c2\u6570\u53ea\u662f\u8bbe\u7f6e\u6700\u5927\u503c\uff0c\u4f46\u5e76\u4e0d\u662f\u6700\u4f73\u6027\u80fd\u3002<\/p>\n
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\u5bf9\u4e8e\u6211\u4eec\u7684mysql\u6765\u8bf4\u4e5f\u662f\u4e00\u6837\u7684\uff0cmysql\u7684\u6700\u4f73\u6027\u80fd\u662f\u5efa\u7acb\u5728\u5404\u4e2a\u53c2\u6570\u7684\u5408\u7406\u8bbe\u7f6e\u4e0a\uff0c\u8fd9\u6837\u534f\u540c\u5e72\u6d3b\u513f\u7684\u6548\u679c\u6700\u4f73\u3002\u5982\u679c\u5176\u4ed6\u8bbe\u7f6e\u4e0d\u5230\u4f4d\u7684\u8bdd\uff0c\u5c31\u50cf\u662f\u6728\u6876\u539f\u7406\u4e00\u6837\uff0c\u54ea\u6015\u5185\u5b58\u7f13\u51b2\u533a\u8bbe\u7f6e\u7684\u5f88\u5927\uff0c\u4f46\u662f\u6027\u80fd\u53d6\u51b3\u7684\u53cd\u800c\u662f\u8bbe\u7f6e\u6700\u5dee\u7684\u90a3\u4e2a\u914d\u7f6e\u3002\u5173\u4e8emysql\u7684\u914d\u7f6e\u8c03\u4f18\uff0c\u6211\u4eec\u90fd\u5728\u8def\u4e0a\uff0c\u52a0\u6cb9\uff01<\/p>\n
\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3aCSDN\u535a\u4e3b\u300c\u94c1\u67f1\u540c\u5b66\u300d\u7684\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faaCC 4.0 BY-SA\u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u53ca\u672c\u58f0\u660e\u3002\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/LJFPHP\/…<\/a><\/p><\/blockquote>\n
\u53c2\u8003\uff1a<\/p>\n