{"id":183636,"date":"2024-11-10T06:28:20","date_gmt":"2024-11-09T22:28:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183636\/"},"modified":"2024-11-10T06:28:20","modified_gmt":"2024-11-09T22:28:20","slug":"%e4%bd%bf%e7%94%a8combo-box%e5%af%a6%e7%8f%be%e4%be%bf%e6%8d%b7%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%96%b9%e5%bc%8f-combo-box-%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183636\/","title":{"rendered":"\u4f7f\u7528Combo Box\u5be6\u73fe\u4fbf\u6377\u7684\u6578\u64da\u5eab\u9023\u63a5\u65b9\u5f0f (combo box \u9023\u63a5\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8combo-box%e5%af%a6%e7%8f%be%e4%be%bf%e6%8d%b7%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%96%b9%e5%bc%8f-gbIsPKycQj\">\u4f7f\u7528Combo Box\u5be6\u73fe\u4fbf\u6377\u7684\u6578\u64da\u5eab\u9023\u63a5\u65b9\u5f0f<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u9023\u63a5\u548c\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u591a\u6a23\u5316\uff0c\u958b\u767c\u8005\u9700\u8981\u5c0b\u627e\u66f4\u4fbf\u6377\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\u3002\u4f7f\u7528Combo Box\uff08\u4e0b\u62c9\u9078\u55ae\uff09\u662f\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u7c21\u5316\u7528\u6236\u7684\u64cd\u4f5c\u6d41\u7a0b\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Combo Box\u4f86\u5be6\u73fe\u4fbf\u6377\u7684\u6578\u64da\u5eab\u9023\u63a5\u65b9\u5f0f\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afcombo-box%ef%bc%9f-gbIsPKycQj\">\u4ec0\u9ebc\u662fCombo Box\uff1f<\/h2>\n<p>Combo Box\u662f\u4e00\u7a2e\u7528\u6236\u754c\u9762\u5143\u7d20\uff0c\u7d50\u5408\u4e86\u6587\u672c\u6846\u548c\u4e0b\u62c9\u9078\u55ae\u7684\u7279\u6027\u3002\u7528\u6236\u53ef\u4ee5\u5f9e\u4e0b\u62c9\u9078\u55ae\u4e2d\u9078\u64c7\u4e00\u500b\u9078\u9805\uff0c\u6216\u8005\u76f4\u63a5\u5728\u6587\u672c\u6846\u4e2d\u8f38\u5165\u5167\u5bb9\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u4f7f\u5f97Combo Box\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u5ee3\u6cdb\u4f7f\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u7528\u6236\u9078\u64c7\u6216\u8f38\u5165\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e4%bd%bf%e7%94%a8combo-box%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-gbIsPKycQj\">\u70ba\u4ec0\u9ebc\u4f7f\u7528Combo Box\u9023\u63a5\u6578\u64da\u5eab\uff1f<\/h2>\n<ul>\n<li><strong>\u7c21\u5316\u7528\u6236\u64cd\u4f5c\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u5feb\u901f\u9078\u64c7\u6240\u9700\u7684\u6578\u64da\u5eab\uff0c\u800c\u4e0d\u5fc5\u624b\u52d5\u8f38\u5165\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u964d\u4f4e\u4e86\u51fa\u932f\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u6548\u7387\uff1a<\/strong>\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u5207\u63db\u6642\uff0cCombo Box\u80fd\u5920\u5feb\u901f\u986f\u793a\u53ef\u7528\u7684\u9078\u9805\uff0c\u7bc0\u7701\u4e86\u7528\u6236\u7684\u6642\u9593\u3002<\/li>\n<li><strong>\u589e\u5f37\u53ef\u7528\u6027\uff1a<\/strong>\u901a\u904e\u63d0\u4f9b\u9810\u8a2d\u9078\u9805\uff0cCombo Box\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u53ef\u7528\u7684\u6578\u64da\u5eab\u9023\u63a5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%becombo-box%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-gbIsPKycQj\">\u5982\u4f55\u5be6\u73feCombo Box\u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Combo Box\u4f86\u9023\u63a5\u6578\u64da\u5eab\u3002\u9019\u500b\u793a\u4f8b\u4f7f\u7528\u4e86HTML\u548cJavaScript\u4f86\u5275\u5efa\u7528\u6236\u754c\u9762\uff0c\u4e26\u4f7f\u7528PHP\u4f86\u8655\u7406\u6578\u64da\u5eab\u9023\u63a5\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e5%89%b5%e5%bb%bahtml%e7%95%8c%e9%9d%a2-gbIsPKycQj\">\u6b65\u9a5f1\uff1a\u5275\u5efaHTML\u754c\u9762<\/h3>\n<pre><code>&lt;!DOCTYPE html&gt;\n&lt;html lang=\"zh-Hant\"&gt;\n&lt;head&gt;\n    &lt;meta charset=\"UTF-8\"&gt;\n    &lt;title&gt;\u6578\u64da\u5eab\u9023\u63a5\u793a\u4f8b&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n    &lt;h1&gt;\u9078\u64c7\u6578\u64da\u5eab&lt;\/h1&gt;\n    &lt;form action=\"connect.php\" method=\"post\"&gt;\n        &lt;label for=\"database\"&gt;\u6578\u64da\u5eab\u540d\u7a31\uff1a&lt;\/label&gt;\n        &lt;select id=\"database\" name=\"database\"&gt;\n            &lt;option value=\"db1\"&gt;\u6578\u64da\u5eab1&lt;\/option&gt;\n            &lt;option value=\"db2\"&gt;\u6578\u64da\u5eab2&lt;\/option&gt;\n            &lt;option value=\"db3\"&gt;\u6578\u64da\u5eab3&lt;\/option&gt;\n        &lt;\/select&gt;\n        &lt;input type=\"submit\" value=\"\u9023\u63a5\"&gt;\n    &lt;\/form&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e8%99%95%e7%90%86%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-gbIsPKycQj\">\u6b65\u9a5f2\uff1a\u8655\u7406\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u5728\u4e0a\u9762\u7684HTML\u8868\u55ae\u4e2d\uff0c\u7576\u7528\u6236\u9078\u64c7\u6578\u64da\u5eab\u4e26\u63d0\u4ea4\u8868\u55ae\u6642\uff0c\u5c07\u6703\u767c\u9001\u5230\u540d\u70baconnect.php\u7684PHP\u6587\u4ef6\u3002\u4ee5\u4e0b\u662fconnect.php\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>&lt;?php\nif ($_SERVER[\"REQUEST_METHOD\"] == \"POST\") {\n    $database = $_POST['database'];\n\n    \/\/ \u6839\u64da\u9078\u64c7\u7684\u6578\u64da\u5eab\u9032\u884c\u9023\u63a5\n    switch ($database) {\n        case 'db1':\n            $host = 'localhost';\n            $user = 'user1';\n            $pass = 'password1';\n            break;\n        case 'db2':\n            $host = 'localhost';\n            $user = 'user2';\n            $pass = 'password2';\n            break;\n        case 'db3':\n            $host = 'localhost';\n            $user = 'user3';\n            $pass = 'password3';\n            break;\n        default:\n            die('\u7121\u6548\u7684\u6578\u64da\u5eab\u9078\u64c7');\n    }\n\n    \/\/ \u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\n    $conn = new mysqli($host, $user, $pass, $database);\n\n    \/\/ \u6aa2\u67e5\u9023\u63a5\n    if ($conn-&gt;connect_error) {\n        die(\"\u9023\u63a5\u5931\u6557: \" . $conn-&gt;connect_error);\n    }\n    echo \"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab: \" . $database;\n}\n?&gt;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-gbIsPKycQj\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528Combo Box\u4f86\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u4e0d\u50c5\u80fd\u5920\u7c21\u5316\u7528\u6236\u7684\u64cd\u4f5c\uff0c\u9084\u80fd\u63d0\u9ad8\u6574\u9ad4\u7684\u4f7f\u7528\u6548\u7387\u3002\u901a\u904e\u4e0a\u8ff0\u793a\u4f8b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5c07Combo Box\u96c6\u6210\u5230\u81ea\u5df1\u7684\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u9023\u63a5\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u5668\u74b0\u5883\u81f3\u95dc\u91cd\u8981\u3002\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u5c07\u6709\u52a9\u65bc\u60a8\u9078\u64c7\u6700\u4f73\u7684\u89e3\u6c7a\u65b9\u6848\u4ee5\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Combo Box\u5be6\u73fe\u4fbf\u6377\u7684\u6578\u64da\u5eab\u9023\u63a5\u65b9\u5f0f\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u8207\u6578\u64da\u7ba1\u7406\u6548\u7387\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-183636","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183636","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=183636"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183636\/revisions"}],"predecessor-version":[{"id":183637,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183636\/revisions\/183637"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}