{"id":187804,"date":"2024-11-11T17:19:19","date_gmt":"2024-11-11T09:19:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/187804\/"},"modified":"2024-11-11T17:19:20","modified_gmt":"2024-11-11T09:19:20","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ad%98%e5%84%b2%e8%b2%a8%e5%b9%a3%e9%a1%9e%e5%9e%8b%e7%9a%84%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%98%e9%8c%a2%e7%9a%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/187804\/","title":{"rendered":"\u6578\u64da\u5eab\u4e2d\u5982\u4f55\u5b58\u5132\u8ca8\u5e63\u985e\u578b\u7684\u6578\u64da\uff1f (\u6578\u64da\u5eab\u5b58\u9322\u7684\u5b57\u6bb5)"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%a6%82%e4%bd%95%e5%ad%98%e5%84%b2%e8%b2%a8%e5%b9%a3%e9%a1%9e%e5%9e%8b%e7%9a%84%e6%95%b8%e6%93%9a%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%98%e9%8c%a2%e7%9a%84-hYxAmWxcxk\">\u6578\u64da\u5eab\u4e2d\u5982\u4f55\u5b58\u5132\u8ca8\u5e63\u985e\u578b\u7684\u6578\u64da\uff1f (\u6578\u64da\u5eab\u5b58\u9322\u7684\u5b57\u6bb5)<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u8ca8\u5e63\u985e\u578b\u7684\u6578\u64da\u5b58\u5132\u662f\u975e\u5e38\u91cd\u8981\u7684\u4e00\u74b0\u3002\u7121\u8ad6\u662f\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u3001\u91d1\u878d\u61c9\u7528\u9084\u662f\u5176\u4ed6\u9700\u8981\u8655\u7406\u91d1\u9322\u7684\u7cfb\u7d71\uff0c\u6b63\u78ba\u5730\u5b58\u5132\u548c\u8655\u7406\u8ca8\u5e63\u6578\u64da\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5728\u6578\u64da\u5eab\u4e2d\u5982\u4f55\u6709\u6548\u5730\u5b58\u5132\u8ca8\u5e63\u985e\u578b\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u5efa\u8b70\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e8%b2%a8%e5%b9%a3%e6%95%b8%e6%93%9a%e7%9a%84%e7%89%b9%e6%80%a7-hYxAmWxcxk\">\u8ca8\u5e63\u6578\u64da\u7684\u7279\u6027<\/h2>\n<p>\u8ca8\u5e63\u6578\u64da\u901a\u5e38\u5177\u6709\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\u7cbe\u78ba\u6027\uff1a\u8ca8\u5e63\u6578\u64da\u9700\u8981\u7cbe\u78ba\u5230\u5c0f\u6578\u9ede\u5f8c\u5169\u4f4d\uff0c\u9019\u662f\u56e0\u70ba\u5927\u591a\u6578\u8ca8\u5e63\u7684\u6700\u5c0f\u55ae\u4f4d\u662f\u5206\u3002<\/li>\n<li>\u53ef\u64f4\u5c55\u6027\uff1a\u96a8\u8457\u696d\u52d9\u7684\u589e\u9577\uff0c\u53ef\u80fd\u9700\u8981\u652f\u6301\u591a\u7a2e\u8ca8\u5e63\u3002<\/li>\n<li>\u8a08\u7b97\u80fd\u529b\uff1a\u9700\u8981\u80fd\u5920\u9032\u884c\u52a0\u6e1b\u4e58\u9664\u7b49\u6578\u5b78\u904b\u7b97\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e5%ad%98%e5%84%b2%e8%b2%a8%e5%b9%a3%e6%95%b8%e6%93%9a%e7%9a%84%e5%b8%b8%e8%a6%8b%e6%96%b9%e6%b3%95-hYxAmWxcxk\">\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u8ca8\u5e63\u6578\u64da\u7684\u5e38\u898b\u65b9\u6cd5<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u8ca8\u5e63\u6578\u64da\u7684\u65b9\u5f0f\u6709\u5e7e\u7a2e\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e6%b5%ae%e9%bb%9e%e6%95%b8%e9%a1%9e%e5%9e%8b-hYxAmWxcxk\">1. \u4f7f\u7528\u6d6e\u9ede\u6578\u985e\u578b<\/h3>\n<p>\u4e00\u4e9b\u958b\u767c\u8005\u53ef\u80fd\u6703\u9078\u64c7\u4f7f\u7528\u6d6e\u9ede\u6578\uff08\u5982 <code>FLOAT<\/code> \u6216 <code>DOUBLE<\/code>\uff09\u4f86\u5b58\u5132\u8ca8\u5e63\u6578\u64da\u3002\u96d6\u7136\u9019\u7a2e\u65b9\u6cd5\u7c21\u55ae\uff0c\u4f46\u6d6e\u9ede\u6578\u7684\u7cbe\u5ea6\u554f\u984c\u53ef\u80fd\u5c0e\u81f4\u8a08\u7b97\u932f\u8aa4\uff0c\u56e0\u6b64\u4e0d\u5efa\u8b70\u7528\u65bc\u8ca8\u5e63\u6578\u64da\u7684\u5b58\u5132\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e6%95%b4%e6%95%b8%e9%a1%9e%e5%9e%8b-hYxAmWxcxk\">2. \u4f7f\u7528\u6574\u6578\u985e\u578b<\/h3>\n<p>\u53e6\u4e00\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\u662f\u5c07\u8ca8\u5e63\u6578\u64da\u8f49\u63db\u70ba\u6574\u6578\u3002\u4f8b\u5982\uff0c\u5c07\u91d1\u984d\u4ee5\u5206\u70ba\u55ae\u4f4d\u5b58\u5132\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u6d6e\u9ede\u6578\u7684\u7cbe\u5ea6\u554f\u984c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE transactions (\n    id INT PRIMARY KEY AUTO_INCREMENT,\n    amount INT NOT NULL, -- \u5b58\u5132\u4ee5\u5206\u70ba\u55ae\u4f4d\u7684\u91d1\u984d\n    currency VARCHAR(3) NOT NULL, -- \u5b58\u5132\u8ca8\u5e63\u985e\u578b\uff0c\u4f8b\u5982 USD, HKD\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e6%95%b8%e5%ad%97%e9%a1%9e%e5%9e%8b-hYxAmWxcxk\">3. \u4f7f\u7528\u6578\u5b57\u985e\u578b<\/h3>\n<p>\u8a31\u591a\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5c08\u9580\u7684\u6578\u5b57\u985e\u578b\uff08\u5982 <code>DECIMAL<\/code> \u6216 <code>NUMERIC<\/code>\uff09\uff0c\u9019\u4e9b\u985e\u578b\u53ef\u4ee5\u6307\u5b9a\u7cbe\u5ea6\u548c\u5c0f\u6578\u4f4d\u6578\u3002\u9019\u662f\u5b58\u5132\u8ca8\u5e63\u6578\u64da\u7684\u6700\u4f73\u9078\u64c7\uff0c\u56e0\u70ba\u5b83\u5011\u80fd\u5920\u63d0\u4f9b\u6240\u9700\u7684\u7cbe\u78ba\u6027\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE transactions (\n    id INT PRIMARY KEY AUTO_INCREMENT,\n    amount DECIMAL(10, 2) NOT NULL, -- \u5b58\u5132\u91d1\u984d\uff0c\u6700\u591a10\u4f4d\u6578\uff0c\u5176\u4e2d2\u4f4d\u70ba\u5c0f\u6578\n    currency VARCHAR(3) NOT NULL, -- \u5b58\u5132\u8ca8\u5e63\u985e\u578b\n    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP\n);\n<\/code><\/pre>\n<h2 id=\"%e5%a4%9a%e8%b2%a8%e5%b9%a3%e6%94%af%e6%8c%81-hYxAmWxcxk\">\u591a\u8ca8\u5e63\u652f\u6301<\/h2>\n<p>\u5728\u5168\u7403\u5316\u7684\u5546\u696d\u74b0\u5883\u4e2d\uff0c\u652f\u6301\u591a\u7a2e\u8ca8\u5e63\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u4e00\u500b\u8ca8\u5e63\u5b57\u6bb5\u4f86\u5b58\u5132\u8ca8\u5e63\u985e\u578b\uff0c\u4e26\u5728\u8a08\u7b97\u6642\u6839\u64da\u7576\u524d\u532f\u7387\u9032\u884c\u8f49\u63db\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7528\u6236\u5728\u4e0d\u540c\u8ca8\u5e63\u4e4b\u9593\u9032\u884c\u4ea4\u6613\u6642\u7684\u6e96\u78ba\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-hYxAmWxcxk\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u8ca8\u5e63\u985e\u578b\u7684\u6578\u64da\u9700\u8981\u8b39\u614e\u8003\u616e\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u985e\u578b\u81f3\u95dc\u91cd\u8981\u3002\u4f7f\u7528\u6574\u6578\u6216\u6578\u5b57\u985e\u578b\uff08\u5982 <code>DECIMAL<\/code>\uff09\u53ef\u4ee5\u6709\u6548\u907f\u514d\u7cbe\u5ea6\u554f\u984c\uff0c\u4e26\u78ba\u4fdd\u8a08\u7b97\u7684\u6e96\u78ba\u6027\u3002\u6b64\u5916\uff0c\u652f\u6301\u591a\u7a2e\u8ca8\u5e63\u7684\u8a2d\u8a08\u4e5f\u80fd\u63d0\u5347\u7cfb\u7d71\u7684\u9748\u6d3b\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u696d\u52d9\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u6709\u6548\u5b58\u5132\u8ca8\u5e63\u985e\u578b\u6578\u64da\uff0c\u5305\u62ec\u9069\u7576\u7684\u5b57\u6bb5\u8a2d\u7f6e\u548c\u6578\u64da\u985e\u578b\u9078\u64c7\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-187804","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=187804"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187804\/revisions"}],"predecessor-version":[{"id":187805,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/187804\/revisions\/187805"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=187804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=187804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=187804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}