{"id":10006370,"date":"2022-09-01T13:04:41","date_gmt":"2022-09-01T05:04:41","guid":{"rendered":"https:\/\/ityet.com\/?p=10006370"},"modified":"2022-09-01T13:04:41","modified_gmt":"2022-09-01T05:04:41","slug":"%e3%80%90%e6%a1%88%e4%be%8b%e5%9b%9e%e9%a1%be%e3%80%91%e6%98%a5%e8%8a%82%e4%b8%80%e6%ac%a1%e8%be%83%e6%b3%a2%e6%8a%98%e7%9a%84mysql%e8%b0%83%e4%bc%98","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006370","title":{"rendered":"\u3010\u6848\u4f8b\u56de\u987e\u3011\u6625\u8282\u4e00\u6b21\u8f83\u6ce2\u6298\u7684MySQL\u8c03\u4f18"},"content":{"rendered":"

\u6625\u8282\u957f\u5047\u67d0\u65e5\uff0c\u9633\u5149\u660e\u5a9a\uff0c\u6625\u6696\u82b1\u5f00\uff0c\u6070\u9022\u51ac\u5965\u4f1a\u5f00\u5e55\uff0c\u60f3\u7740\u4e00\u5b9a\u662f\u4e00\u4e2a\u9ec4\u9053\u5409\u65e5\uff0c\u5fc5\u80fd\u987a\u98ce\u987a\u6c34\u3002\u6ca1\u60f3\u5230\u5374\u9047\u5230\u4e00\u4e2a\u6709\u70b9\u5c0f\u6ce2\u6298\u7684\u5ba2\u6237\u62a5\u969c\u3002<\/p>\n

\u6545\u969c\u8d77\u56e0<\/strong><\/p>\n

\u6545\u969c\u8d77\u56e0\u662f\u5ba2\u6237\u524d\u4e00\u5929\u4ece\u81ea\u5efa MySQL \u8fc1\u79fb\u5230\u4e91\u4e0a RDS\uff0c\u5728\u6267\u884c\u67d0\u4e2a\u5e76\u53d1\u8f83\u9ad8\u7684\u4e1a\u52a1\u65f6\u51fa\u73b0\u4e86\u5927\u91cf\u9501\u7b49\u5f85\uff0c\u5ba2\u6237\u5f53\u65f6\u5347\u7ea7\u4e86\u5b9e\u4f8b\u5230\u6700\u9ad8\u89c4\u683c\uff0c\u4f46\u6545\u969c\u4f9d\u65e7\u3002\u5ba2\u6237\u53cd\u9988\u5347\u7ea7\u540e\u7684\u5b9e\u4f8b\u89c4\u683c\u6bd4\u81ea\u5efa\u5b9e\u4f8b\u9ad8\u4e86\u4e00\u500d\uff0c\u81ea\u5efa\u5b9e\u4f8b\u4e0a\u4ece\u672a\u53d1\u751f\u8fc7\u7c7b\u4f3c\u60c5\u51b5\u3002\u540e\u5ba2\u6237\u6839\u636e\u5f53\u65f6\u7684\u4e1a\u52a1\u6545\u969c\u6a21\u62df\u4e86\u73b0\u573a\uff0c\u4e3b\u8981\u662f\u5e76\u53d1\u6267\u884c\u5982\u4e0b\u5b58\u50a8\u8fc7\u7a0b\u7684\u65f6\u5019\u6027\u80fd\u5f88\u5dee\uff1a<\/p>\n

\"image.png\"<\/p>\n

\u521d\u6b65\u8bca\u65ad<\/strong><\/p>\n

\u4ece\u5b58\u50a8\u8fc7\u7a0b\u7684\u903b\u8f91\u770b\uff0c\u6bd4\u8f83\u7b80\u5355\uff0c\u4e3b\u8981\u6d89\u53ca\u4e24\u4e2a SQL\uff0c\u4e00\u4e2a\u4ece\u8868 t\uff08\u9690\u85cf\u4e86\u771f\u5b9e\u8868\u540d\uff09\u4e2d meeting_id \u6839\u636e\u4f20\u5165\u53c2\u6570\u503c\u67e5\u8be2\uff0c\u5177\u4f53\u7684\u5165\u53c2\u7531\u5b57\u7b26\u578b\u53d8\u91cf p_meeting_id \u5e26\u5165\uff1b\u53e6\u5916\u4e00\u4e2a\u6839\u636e meeting_id \u548c\u521a\u67e5\u51fa\u7684 phone_id \u53bb\u66f4\u65b0 t \u4e2d\u7684 phone_id \u4e3a phone_id+3\u3002\u8868 t \u6570\u636e\u91cf\u7ea6 40w \u5de6\u53f3\u3002<\/p>\n

\u7b2c\u4e00\u611f\u89c9\u8fd9\u662f\u4e2a\u7b80\u5355\u95ee\u9898\uff0c\u4f30\u8ba1\u4e24\u4e2a SQL \u7684 meeting_id \u7d22\u5f15\u6ca1\u6709\u751f\u6548\uff0c\u67e5\u8be2\u8868\u4e0a\u7d22\u5f15\u540e\u679c\u7136\u53d1\u73b0 meeting_id \u548c phone_id \u4e0a\u6ca1\u6709\u7d22\u5f15\uff0c\u5efa\u8bae\u5ba2\u6237\u5728\u4e24\u4e2a\u5b57\u6bb5\u4e0a\u5206\u522b\u521b\u5efa\u4e86\u7d22\u5f15\uff0c\u4e14 meeting_id \u4e3a\u4e3b\u952e\u3002\u6b64\u65f6\u7528\u6237\u6267\u884c\u6a21\u62df\u7684\u5e76\u53d1\u811a\u672c\u53cd\u9988\u901f\u5ea6\u6709\u4e86\u660e\u663e\u63d0\u5347\uff0c200 \u4e2a\u5e76\u53d1\u6700\u9ad8\u6267\u884c\u65f6\u95f4 40s \u5de6\u53f3\uff0c\u4f46\u6a21\u62df 500 \u4e2a\u5e76\u53d1\u7684\u65f6\u5019\uff0c\u8d85\u8fc7\u4e86 8 \u5206\u949f\u8fd8\u6ca1\u6709\u6267\u884c\u5b8c\u3002\u7528\u6237\u53cd\u9988\u5728\u81ea\u5efa MySQL \u4e0a\u5e76\u53d1 500 \u6267\u884c\u90fd\u662f\u79d2\u7ea7\u5b8c\u6210\u3002\u6b64\u65f6\u5728\u63a7\u5236\u53f0\u770b\uff0c\u8fd9\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u5728\u6162\u67e5\u8be2\u65e5\u5fd7\u4e2d\u6279\u91cf\u51fa\u73b0\uff0c\u4e14\u626b\u63cf\u884c\u6570\u5de8\u5927\uff0c\u5ba2\u6237\u7aef\u5df2\u7ecf\u5b8c\u5168 hang \u4f4f:<\/p>\n

\"image.png\"<\/p>\n

\u8fdb\u4e00\u6b65\u4f18\u5316<\/strong><\/p>\n

\u867d\u7136\u4f18\u5316\u6709\u4e86\u521d\u6b65\u7684\u6548\u679c\uff0c \u4f46\u8ddd\u79bb\u5ba2\u6237\u81ea\u5efa\u73af\u5883\u6027\u80fd\u63cf\u8ff0\u8fd8\u5dee\u8ddd\u5f88\u5927\uff0c\u7531\u4e8e\u5e76\u53d1\u9ad8\uff0c \u4ece\u76d1\u63a7\u770b\u6d4b\u8bd5\u671f\u95f4 CPU \u5230\u4e86 100%\uff0c\u6000\u7591\u53c2\u6570 innodb_thread_concurrency \u7684\u8bbe\u7f6e\u53ef\u80fd\u4e0d\u5f53\u3002\u6b64\u53c2\u6570\u7684\u4f5c\u7528\u662f\u63a7\u5236 InnoDB \u7684\u5e76\u53d1\u7ebf\u7a0b\u4e0a\u9650\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e00\u65e6\u5e76\u53d1\u7ebf\u7a0b\u6570\u8fbe\u5230\u8fd9\u4e2a\u503c\uff0cInnoDB \u5728\u63a5\u6536\u5230\u65b0\u8bf7\u6c42\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u8fdb\u5165\u7b49\u5f85\u72b6\u6001\uff0c\u76f4\u5230\u6709\u7ebf\u7a0b\u9000\u51fa\u3002RDS \u9ed8\u8ba4\u503c\u4e3a 0\uff0c\u4e5f\u5c31\u662f\u6ca1\u6709\u9650\u5236\u4e0a\u9650\uff0c\u5728\u9ad8\u5e76\u53d1\u7684\u573a\u666f\u4e0b\u53ef\u80fd\u4f1a\u4ea7\u751f\u8f83\u591a\u7684\u4e0a\u4e0b\u6587\u5207\u6362\uff0c\u5bfc\u81f4 CPU \u5347\u9ad8\u3002\u548c\u5ba2\u6237\u54a8\u8be2\u4e86\u4e00\u4e0b\uff0c\u4ed6\u4eec\u81ea\u5efa\u73af\u5883\u7684\u503c\u8bbe\u7f6e\u4e3a 32\uff0c\u5efa\u8bae\u4ed6\u4eec\u5c06 RDS \u7684\u503c\u4e5f\u6539\u4e3a 32 \u518d\u770b\u770b\u6548\u679c\u3002\u5ba2\u6237\u5f88\u5feb\u53cd\u9988\uff0c\u4fee\u6539\u540e\u7684\u786e\u6709\u6548\u679c\uff0c500 \u4e2a\u5e76\u53d1\u5728 3 \u5206\u949f\u5185\u5b8c\u6210\uff0c\u6ca1\u6709\u518d\u53d1\u751f hang \u4f4f\u4e0d\u52a8\u7684\u60c5\u51b5\uff0c\u6027\u80fd\u6709\u4e86\u8fdb\u4e00\u6b65\u7684\u63d0\u5347\u3002\u4f46\u53c2\u6570 innodb_thread_concurrency \u8fdb\u4e00\u6b65\u8c03\u6574\u6548\u679c\u4e0d\u660e\u663e\u3002<\/p>\n

\u52a0 trace \u8bca\u65ad<\/strong><\/p>\n

\u5ba2\u6237\u770b\u5230\u6027\u80fd\u4e0d\u65ad\u63d0\u5347\u4e5f\u5f88\u6709\u4fe1\u5fc3\uff0c\u4f46\u548c\u81ea\u5efa\u73af\u5883\u5dee\u8ddd\u8fd8\u662f\u5f88\u5927\uff0c\u8fd8\u6709\u54ea\u91cc\u53ef\u80fd\u6709\u95ee\u9898\uff1f\u7a81\u7136\u60f3\u5230\uff0c\u521b\u5efa\u7d22\u5f15\u540e\uff0c\u5728\u63a7\u5236\u53f0\u7684\u6162\u67e5\u8be2\u5217\u8868\u4e2d\u770b\u5230\u5f88\u591a\u5b58\u50a8\u8fc7\u7a0b\u7684\u8c03\u7528 sql\uff0c\u4e14\u626b\u63cf\u8bb0\u5f55\u6570\u5de8\u5927\uff0c\u5982\u679c\u662f\u8d70 meeting_id \u552f\u4e00\u7d22\u5f15\uff0c\u5e94\u8be5\u626b\u63cf\u5f88\u5c11\u7684\u8bb0\u5f55\u6570\u624d\u5bf9\uff0c\u96be\u9053\u6ca1\u6709\u8d70\u7d22\u5f15\uff1f\u6216\u8005\u6ca1\u6709\u8d70 meeting_id \u4e3b\u952e\u7d22\u5f15\uff1f\u8054\u7cfb\u5ba2\u6237\uff0c\u5e0c\u671b\u63d0\u4f9b\u6d4b\u8bd5\u73af\u5883\u767b\u9646\u6d4b\u8bd5\u3002<\/p>\n

\u5728\u6d4b\u8bd5\u73af\u5883\uff0c\u9996\u5148\u5e0c\u671b\u9a8c\u8bc1\u4e00\u4e0b\u4e24\u4e2a SQL \u7684\u6267\u884c\u8ba1\u5212\u5230\u5e95\u662f\u600e\u4e48\u6837\u7684\u3002\u767b\u9646\u5b9e\u4f8b\u540e\uff0c\u5206\u522b\u5bf9\u4e24\u4e2a\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u7684 SQL \u6267\u884c explain\uff0c\u53d1\u73b0\u8d70\u7684\u786e\u5b9e\u662f\u4e3b\u952e\uff08meeting_id\uff09\uff1a<\/p>\n

\"image.png\"<\/p>\n

\u4e3a\u4e86\u8fdb\u4e00\u6b65\u786e\u8ba4 SQL \u5728\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u7684\u5b9e\u9645\u6267\u884c\u8ba1\u5212\uff0c\u4fee\u6539\u4e86\u4e00\u4e0b\u6d4b\u8bd5\u7684\u5b58\u50a8\u8fc7\u7a0b\u903b\u8f91\uff0c\u52a0\u5165\u4e86 SQL \u6267\u884c\u7684 explain \u7ed3\u679c\u548c\u5b9e\u9645\u6267\u884c\u7684 trace\uff0c\u8fc7\u7a0b\u4e2d\u4e3b\u8981\u589e\u52a0\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

\"image.png\"<\/p>\n

\u6267\u884c\u8ba1\u5212\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n

\"image.png\"<\/p>\n

\u4ece\u7ed3\u679c\u770b\uff0c\u4e24\u4e2a SQL \u5c45\u7136\u771f\u7684\u6ca1\u6709\u8d70\u4e3b\u952e meeting_id \u7d22\u5f15\uff0c\u800c\u662f\u90fd\u8d70\u4e86 phone_id \u8fd9\u4e2a\u666e\u901a\u7684\u4e8c\u7ea7\u7d22\u5f15\uff0c\u5176\u4e2d\u7b2c\u4e00\u4e2a\u67e5\u8be2 SQL \u8d70\u7684\u7d22\u5f15\u5168\u626b\u63cf\uff0c\u626b\u63cf\u8bb0\u5f55\u6570 rows \u4e3a 397399\uff0c\u548c\u8868\u7684\u8bb0\u5f55\u6570\u4e00\u81f4\uff0c\u663e\u7136\u8d70\u4e86\u5168\u7d22\u5f15\u626b\u63cf\uff0c\u867d\u7136\u6bd4\u5168\u8868\u626b\u63cf\u597d\u4e00\u4e9b\uff0c\u4f46\u6548\u7387\u4ecd\u7136\u4f4e\u4e0b\uff1b\u53e6\u5916\u4e00\u4e2a update \u7684 SQL \u8d70\u4e86\u6b63\u5e38\u7684\u7d22\u5f15\u626b\u63cf\uff0crows \u53ea\u6709 2\uff0c\u6027\u80fd\u9ad8\u6548\u3002\u4e3a\u4ec0\u4e48\u4e24\u4e2a SQL \u6ca1\u6709\u8d70 meeting_id \u8fd9\u4e2a\u4e3b\u952e\u7d22\u5f15\u5462\uff1f\u770b trace \u6253\u5370\u7684\u90e8\u5206\u5185\u5bb9\uff1a<\/p>\n

\"image.png\"<\/p>\n

trace \u663e\u793a\u4e24\u4e2a SQL \u5728\u4f18\u5316\u5668\u5206\u6790\u65f6\uff0c\u5c06 meeting_id \u505a\u4e86\u9690\u5f0f\u8f6c\u6362\uff0c\u8f6c\u6362\u51fd\u6570\u4e3a convert (‘meeting_id’ using utf8mb4)\uff0c\u4e5f\u5c31\u662f\u5c06 meeting_id \u505a\u4e86\u5b57\u7b26\u96c6\u7684\u8f6c\u6362\uff0c\u719f\u6089\u7d22\u5f15\u673a\u5236\u7684\u540c\u5b66\u90fd\u6e05\u695a\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f18\u5316\u5668\u662f\u4e0d\u4f1a\u8d70 meeting_id \u7d22\u5f15\u7684\u3002\u8fd9\u4e5f\u53ef\u4ee5\u89e3\u91ca\u4e86\u5ba2\u6237\u7b2c\u4e00\u6b21\u521b\u5efa\u7d22\u5f15\u7684\u65f6\u5019\u4e3a\u5565\u6709\u6027\u80fd\u63d0\u5347\uff0c\u4f46\u6548\u679c\u5e76\u4e0d\u660e\u663e\uff0c\u539f\u56e0\u5c31\u662f\u53ea\u6709 update \u8bed\u53e5\u771f\u6b63\u7528\u5230\u4e86\u7d22\u5f15\u5e26\u6765\u7684\u6027\u80fd\u63d0\u5347\uff0c\u800c\u4e14\u662f phone_id \u7d22\u5f15\u5e26\u6765\u7684\u63d0\u5347\uff0c\u4e0d\u662f\u6027\u80fd\u66f4\u9ad8\u7684\u4e3b\u952e meeting_id\u3002<\/p>\n

\u771f\u76f8\u5927\u767d<\/strong><\/p>\n

\u73b0\u5728\u805a\u7126\u5230\u6700\u5173\u952e\u7684\u95ee\u9898\uff0cmeeting_id \u4e3a\u5565\u8981\u505a\u5b57\u7b26\u96c6\u7684\u9690\u5f0f\u8f6c\u6362\uff1f\u67e5\u770b\u4e86\u4e00\u4e0b\u5b9e\u4f8b\u76f8\u5173\u5b57\u7b26\u96c6\u7684\u8bbe\u7f6e\uff1a<\/p>\n

\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u90fd\u4e3a utf8\uff1b
\u8868\u6240\u5728\u5e93\u7684\u5b57\u7b26\u96c6\u4e3a utf8mb4\uff1b
server \u5b57\u7b26\u96c6\uff08\uff08character_set_server\uff09\uff09\u4e3a utf8
character_set_client\/character_set_connection\/character_set_results \u4e3a utf8mb4
\u679c\u7136\uff0cserver\u3001database\u3001table \u7684\u5b57\u7b26\u96c6\u4e0d\u5b8c\u5168\u4e00\u81f4\uff0c\u731c\u60f3\u4e00\u4e0b\u5b9e\u9645\u6d41\u7a0b\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff1a\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u4f20\u5165\u7684\u5b57\u7b26\u53c2\u6570\u5b57\u7b26\u96c6\u4e3a utf8mb4\uff0c\u548c\u8868\u4e2d\u5b57\u7b26\u96c6\u4e3a utf8 \u7684\u5b57\u6bb5 meeting_id \u6bd4\u8f83\u65f6\uff0cmeeting_id \u505a\u4e86\u5b57\u7b26\u96c6\u7684\u9690\u5f0f\u8f6c\u6362\uff0c\u8f6c\u6362\u4e3a utf8mb4 \u540e\u518d\u548c\u8f93\u5165\u53c2\u6570\u6bd4\u8f83\uff0c\u4ece\u800c\u5bfc\u81f4 meeting_id \u4e0a\u7684\u7d22\u5f15\u65e0\u6cd5\u4f7f\u7528\u3002<\/p>\n

\u6839\u636e\u8fd9\u4e2a\u731c\u6d4b\uff0c\u5efa\u8bae\u7528\u6237\u5c06\u8868\u7684\u5b57\u7b26\u96c6\u66f4\u6539\u4e3a utf8mb4\uff0c\u8fd9\u6837\u5e94\u8be5\u53ef\u4ee5\u907f\u514d\u5b57\u7b26\u96c6\u7684\u8f6c\u6362\u3002\u7531\u4e8e\u8fd9\u4e2a\u529f\u80fd\u8fd8\u672a\u4e0a\u7ebf\uff0c\u7528\u6237\u76f4\u63a5\u5bf9 \u8868\u505a\u4e86\u5b57\u7b26\u96c6\u7684\u4fee\u6539\uff1a<\/p>\n

alter table zm_meeting convert to character set utf8mb4;
\u4fee\u6539\u540e\u8ba9\u7528\u6237\u518d\u6b21\u6d4b\u8bd5\uff0c\u9884\u671f\u6548\u679c\u7ec8\u4e8e\u51fa\u73b0\uff0c\u5e76\u53d1 500 \u6d4b\u8bd5\u5728\u79d2\u7ea7\u5b8c\u6210\uff0ctrace \u67e5\u770b\u6267\u884c\u8ba1\u5212\uff0c\u90fd\u8d70\u4e86 meeting_id \u7684\u4e3b\u952e\u7d22\u5f15\uff0c\u9690\u5f0f\u8f6c\u6362\u4e5f\u968f\u4e4b\u6d88\u5931\uff0c\u6027\u80fd\u95ee\u9898\u5f97\u5230\u4e86\u5f7b\u5e95\u89e3\u51b3\u3002<\/p>\n

\u540e\u7eed\u601d\u8003<\/strong><\/p>\n

\u5b58\u50a8\u8fc7\u7a0b\u7684\u5165\u53c2\u4e3a\u5565\u4f7f\u7528\u4e86 utf8mb4\uff1f\u8fd9\u662f\u672c\u6b21\u6848\u4f8b\u7684\u6838\u5fc3\uff0c\u67e5\u9605 mysql \u6587\u6863\uff0c\u5b58\u50a8\u8fc7\u7a0b\u4ecb\u7ecd\u91cc\u9762\u6709\u4e00\u6bb5\u63cf\u8ff0\uff1a<\/p>\n

\"image.png\"<\/p>\n

\u7b80\u5355\u8bf4\uff0c\u5c31\u662f\u5b58\u50a8\u8fc7\u7a0b\u7684\u5b57\u7b26\u578b\u53c2\u6570\uff0c\u5982\u679c\u6ca1\u6709\u663e\u5f0f\u6307\u5b9a\u5b57\u7b26\u96c6\uff0c\u9ed8\u8ba4\u5c06\u4f1a\u4f7f\u7528\u6240\u5728\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\uff0c\u800c\u672c\u6848\u4f8b\u4e2d\u8868\u6240\u5728\u7684\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u4e3a utf8mb4\uff0c\u6240\u4ee5\u53c2\u6570\u9ed8\u8ba4\u4f7f\u7528\u4e86 utf8mb4\uff0c\u5bfc\u81f4\u4e86\u5339\u914d\u8fc7\u7a0b\u7684\u9690\u5f0f\u8f6c\u6362\u3002\u5b58\u50a8\u8fc7\u7a0b\u5916\u76f4\u63a5\u5199 SQL \u4e3a\u4ec0\u4e48\u6ca1\u6709\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\uff0c\u6211\u731c\u6d4b\u6bd4\u8f83\u7684\u5b57\u7b26\u4e32\u5e94\u8be5\u4f1a\u81ea\u52a8\u5339\u914d\u2018=\u2019\u5de6\u8fb9\u8868\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n

\u65e2\u7136\u8fd9\u6837\uff0c\u7406\u8bba\u4e0a\u76f4\u63a5\u4fee\u6539\u53c2\u6570\u7684\u5b57\u7b26\u96c6\u5e94\u8be5\u4e5f\u53ef\u4ee5\u8fbe\u5230\u540c\u6837\u7ed3\u679c\uff0c\u7b80\u5355\u6d4b\u8bd5\u4e0b\uff0c\u5c06\u5b58\u50a8\u8fc7\u7a0b\u53c2\u6570\u52a0\u4e0a\u8868\u4e0a\u7684\u5b57\u7b26\u96c6\u5c5e\u6027\uff1a<\/p>\n

CREATE PROCEDURE zm_sp_next_phone_id<\/code>(IN p_meeting_id<\/code> VARCHAR(36) character set utf8)
\u6d4b\u8bd5\u7ed3\u679c\u5982\u6211\u4eec\u9884\u671f\uff0c\u4e0d\u4f1a\u4ea7\u751f\u9690\u5f0f\u8f6c\u6362\uff0c\u6267\u884c\u8ba1\u5212\u6b63\u786e\u3002<\/p>\n

\u95ee\u9898\u867d\u7136\u89e3\u51b3\u4e86\uff0c\u539f\u56e0\u4e5f\u627e\u5230\u4e86\uff0c\u4f46\u53cd\u601d\u4e00\u4e0b\u6574\u4e2a\u8fc7\u7a0b\uff0c\u5982\u679c\u7528\u6237\u7684 server\u3001\u5e93\u3001\u8868\u5b57\u7b26\u96c6\u80fd\u591f\u4fdd\u6301\u4e00\u81f4\uff0c\u5c06\u5b8c\u5168\u53ef\u4ee5\u907f\u514d\u8fd9\u4e2a\u6545\u969c\u3002\u4e0e\u5b57\u7b26\u96c6\u76f8\u5173\u7684\u7c7b\u4f3c\u6545\u969c\u4e5f\u53ef\u4ee5\u5927\u6982\u7387\u907f\u514d\uff0c\u6240\u4ee5\u5ba2\u6237\u4fa7\u8fd8\u662f\u8981\u6709\u4e00\u5b9a\u7684\u8bbe\u8ba1\u89c4\u8303\uff1b\u4ea7\u54c1\u4fa7\u5982\u679c\u6709\u4e00\u5b9a\u7684\u68c0\u67e5\u89c4\u5219\u53ef\u4ee5\u5e2e\u5ba2\u6237\u53d1\u73b0\u7c7b\u4f3c\u7684\u9690\u60a3\uff0c\u5bf9\u63d0\u5347\u5ba2\u6237\u4f53\u9a8c\u4e5f\u662f\u4e00\u79cd\u5f88\u6709\u4ef7\u503c\u7684\u670d\u52a1\u3002<\/p>\n

\u4f5c\u8005\uff1a\u7fdf\u632f\u5174<\/p>\n

https:\/\/segmentfault.com\/a\/1190000042416071<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u6625\u8282\u957f\u5047\u67d0\u65e5\uff0c\u9633\u5149\u660e\u5a9a\uff0c\u6625\u6696\u82b1\u5f00\uff0c\u6070\u9022\u51ac\u5965\u4f1a\u5f00\u5e55\uff0c\u60f3\u7740\u4e00\u5b9a\u662f\u4e00\u4e2a\u9ec4\u9053\u5409\u65e5\uff0c\u5fc5\u80fd\u987a\u98ce\u987a\u6c34\u3002\u6ca1\u60f3\u5230\u5374\u9047\u5230\u4e00\u4e2a\u6709\u70b9\u5c0f […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006370","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006370","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"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006370"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006370\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}