{"id":16998,"date":"2023-12-08T18:42:16","date_gmt":"2023-12-08T10:42:16","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=16998"},"modified":"2023-12-08T18:48:53","modified_gmt":"2023-12-08T10:48:53","slug":"shan-xi-da-shan-ke-ji-bi-shi-ti-zong-jie-2","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/08\/shan-xi-da-shan-ke-ji-bi-shi-ti-zong-jie-2\/","title":{"rendered":"\u9655\u897f\u5927\u5c71\u79d1\u6280\u7b14\u8bd5\u9898\u603b\u7ed3"},"content":{"rendered":"<h2>\u4e00\u3001java \u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6709\u54ea\u4e9b\uff1f<\/h2>\n<p>Java \u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<ol>\n<li><strong>\u6574\u6570\u7c7b\u578b\uff1a<\/strong>\n<ul>\n<li><code>byte<\/code>\uff1a8 \u4f4d\uff0c\u6709\u7b26\u53f7\uff0c\u8303\u56f4\u4e3a -128 \u5230 127\u3002<\/li>\n<li><code>short<\/code>\uff1a16 \u4f4d\uff0c\u6709\u7b26\u53f7\uff0c\u8303\u56f4\u4e3a -32,768 \u5230 32,767\u3002<\/li>\n<li><code>int<\/code>\uff1a32 \u4f4d\uff0c\u6709\u7b26\u53f7\uff0c\u8303\u56f4\u4e3a -2^31 \u5230 2^31 &#8211; 1\u3002<\/li>\n<li><code>long<\/code>\uff1a64 \u4f4d\uff0c\u6709\u7b26\u53f7\uff0c\u8303\u56f4\u4e3a -2^63 \u5230 2^63 &#8211; 1\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6d6e\u70b9\u7c7b\u578b\uff1a<\/strong>\n<ul>\n<li><code>float<\/code>\uff1a32 \u4f4d\uff0c\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3002<\/li>\n<li><code>double<\/code>\uff1a64 \u4f4d\uff0c\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5b57\u7b26\u7c7b\u578b\uff1a<\/strong>\n<ul>\n<li><code>char<\/code>\uff1a16 \u4f4d\uff0c\u65e0\u7b26\u53f7 Unicode \u5b57\u7b26\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u5e03\u5c14\u7c7b\u578b\uff1a<\/strong>\n<ul>\n<li><code>boolean<\/code>\uff1a\u8868\u793a\u903b\u8f91\u503c\uff0c\u53ea\u6709\u4e24\u4e2a\u53d6\u503c\uff1a<code>true<\/code> \u6216 <code>false<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u57fa\u672c\u6570\u636e\u7c7b\u578b\u662f Java \u8bed\u8a00\u4e2d\u7528\u4e8e\u5b58\u50a8\u57fa\u672c\u6570\u636e\u7684\u6700\u57fa\u672c\u7684\u6570\u636e\u7c7b\u578b\u3002\u9664\u4e86\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0cJava \u8fd8\u652f\u6301\u5f15\u7528\u6570\u636e\u7c7b\u578b\uff0c\u5982\u7c7b\u3001\u63a5\u53e3\u3001\u6570\u7ec4\u7b49\u3002\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5728 Java \u4e2d\u5177\u6709\u8f83\u4f4e\u7684\u5185\u5b58\u5360\u7528\u548c\u8f83\u9ad8\u7684\u6027\u80fd\uff0c\u800c\u5f15\u7528\u6570\u636e\u7c7b\u578b\u901a\u5e38\u7528\u4e8e\u6784\u5efa\u66f4\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u548c\u5bf9\u8c61\u3002<\/p>\n<h2>\u4e8c\u3001\u7b80\u8ff0\u201c==\u201d\u548cequals()\u7684\u533a\u522b\uff1f<\/h2>\n<p>\u5728 Java \u4e2d\uff0c\u201c==\u201d\uff08\u53cc\u7b49\u53f7\uff09\u548c <code>equals()<\/code> \u65b9\u6cd5\u90fd\u662f\u7528\u4e8e\u6bd4\u8f83\u5bf9\u8c61\u4e4b\u95f4\u7684\u76f8\u7b49\u6027\uff0c\u4f46\u5b83\u4eec\u6709\u7740\u4e0d\u540c\u7684\u7528\u9014\u548c\u884c\u4e3a\u3002<\/p>\n<ol>\n<li><strong>\u201c==\u201d\u8fd0\u7b97\u7b26\uff1a<\/strong>\n<ul>\n<li>\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u7684\u5f15\u7528\u662f\u5426\u6307\u5411\u540c\u4e00\u5185\u5b58\u5730\u5740\uff0c\u5373\u5224\u65ad\u4e24\u4e2a\u5bf9\u8c61\u662f\u5426\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002<\/li>\n<li>\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u6bd4\u8f83\u7684\u662f\u503c\u662f\u5426\u76f8\u7b49\u3002<\/li>\n<li>\u793a\u4f8b\uff1a\n<pre><code class=\"language-java  line-numbers\">String str1 = new String(\"Hello\");\nString str2 = new String(\"Hello\");\nString str3 = str1;\n\nSystem.out.println(str1 == str2);  \/\/ false\uff0c\u4e0d\u540c\u7684\u5bf9\u8c61\nSystem.out.println(str1 == str3);  \/\/ true\uff0c\u540c\u4e00\u5bf9\u8c61\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong><code>equals()<\/code>\u65b9\u6cd5\uff1a<\/strong>\n<ul>\n<li>\u662f <code>Object<\/code> \u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u7684\u5185\u5bb9\u662f\u5426\u76f8\u7b49\u3002\u5728 <code>Object<\/code> \u7c7b\u4e2d\uff0c<code>equals()<\/code> \u65b9\u6cd5\u7684\u9ed8\u8ba4\u5b9e\u73b0\u662f\u4f7f\u7528\u201c==\u201d\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u7684\u5f15\u7528\u662f\u5426\u76f8\u7b49\uff0c\u5373\u548c <code>==<\/code> \u7684\u4f5c\u7528\u4e00\u6837\u3002<\/li>\n<li>\u901a\u5e38\uff0c\u7c7b\u4f1a\u91cd\u5199 <code>equals()<\/code> \u65b9\u6cd5\u6765\u6839\u636e\u5bf9\u8c61\u7684\u5185\u5bb9\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u793a\u4f8b\uff1a\n<pre><code class=\"language-java  line-numbers\">String str1 = new String(\"Hello\");\nString str2 = new String(\"Hello\");\n\nSystem.out.println(str1.equals(str2));  \/\/ true\uff0c\u91cd\u5199\u4e86equals\u65b9\u6cd5\uff0c\u6bd4\u8f83\u5185\u5bb9\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u603b\u7ed3\uff1a<br \/>\n&#8211; \u201c==\u201d\u7528\u4e8e\u6bd4\u8f83\u5f15\u7528\u662f\u5426\u76f8\u7b49\uff0c\u5373\u5bf9\u8c61\u662f\u5426\u662f\u540c\u4e00\u5bf9\u8c61\u3002<br \/>\n&#8211; <code>equals()<\/code>\u65b9\u6cd5\u7528\u4e8e\u6bd4\u8f83\u5bf9\u8c61\u7684\u5185\u5bb9\u662f\u5426\u76f8\u7b49\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u7684\u7c7b\u5b9e\u73b0\u81ea\u5b9a\u4e49\u7684\u76f8\u7b49\u6027\u6bd4\u8f83\u3002\u5728\u4f7f\u7528 <code>equals()<\/code> \u65f6\uff0c\u5efa\u8bae\u91cd\u5199\u8be5\u65b9\u6cd5\u4ee5\u6ee1\u8db3\u4e1a\u52a1\u9700\u6c42\uff0c\u5426\u5219\u9ed8\u8ba4\u884c\u4e3a\u662f\u6bd4\u8f83\u5f15\u7528\u7684\u76f8\u7b49\u6027\u3002<\/p>\n<h2>\u4e09\u3001\u4f7f\u7528 Math.random() \u51fd\u6570\u751f\u6210[30,60]\u4e4b\u95f4\u7684\u968f\u673a\u6570\u636e\u7684\u8bed\u53e5\u662f\uff1f<\/h2>\n<p>\u8981\u751f\u6210[30, 60]\u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre><code class=\"language-java  line-numbers\">int randomNumber = (int) (Math.random() * (60 - 30 + 1) + 30);\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u7684\u5173\u952e\u70b9\u662f\u4f7f\u7528 <code>Math.random()<\/code> \u751f\u6210\u4e00\u4e2a [0, 1) \u4e4b\u95f4\u7684\u6d6e\u70b9\u6570\uff0c\u7136\u540e\u901a\u8fc7\u4e58\u6cd5\u548c\u52a0\u6cd5\u7684\u8fd0\u7b97\u5c06\u5176\u6620\u5c04\u5230 [30, 61) \u533a\u95f4\uff0c\u6700\u540e\u901a\u8fc7\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\u4e3a\u6574\u6570\uff0c\u5f97\u5230\u4e00\u4e2a [30, 60] \u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u539f\u7406\u662f\u5148\u751f\u6210 [0, 30) \u4e4b\u95f4\u7684\u6d6e\u70b9\u6570\uff0c\u7136\u540e\u52a0\u4e0a 30\uff0c\u6700\u7ec8\u5f97\u5230 [30, 60) \u4e4b\u95f4\u7684\u6574\u6570\u3002<\/p>\n<h2>\u56db\u3001\u6709\u6570\u7ec4\u5b9a\u4e49:int arrays[]=1,2,3,4,5,6,7\uff0c\u5219\u6267\u884c\u4ee5\u4e0b\u8bed\u53e5\u540e\u7684\u8f93\u51fa\u7ed3\u679c\u662f\uff1f<\/h2>\n<p>\u5728\u7ed9\u5b9a\u7684\u6570\u7ec4\u5b9a\u4e49\u4e2d\uff0c<code>int arrays[]=1,2,3,4,5,6,7;<\/code> \u5b58\u5728\u8bed\u6cd5\u9519\u8bef\u3002\u6b63\u786e\u7684\u6570\u7ec4\u5b9a\u4e49\u5e94\u8be5\u4f7f\u7528\u82b1\u62ec\u53f7 <code>{}<\/code> \u5305\u88f9\u6570\u7ec4\u5143\u7d20\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-java  line-numbers\">int[] arrays = {1, 2, 3, 4, 5, 6, 7};\n<\/code><\/pre>\n<p>\u5982\u679c\u4f7f\u7528\u6b63\u786e\u7684\u6570\u7ec4\u5b9a\u4e49\uff0c\u7136\u540e\u6267\u884c\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre><code class=\"language-java  line-numbers\">for (int i : arrays) {\n    System.out.print(i + \" \");\n}\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\u5c06\u662f\uff1a<\/p>\n<pre><code class=\" line-numbers\">1 2 3 4 5 6 7 \n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f7f\u7528\u589e\u5f3a\u578b for \u5faa\u73af\u904d\u5386\u6570\u7ec4 <code>arrays<\/code> \u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u5c06\u5176\u6253\u5370\u8f93\u51fa\u3002<\/p>\n<h2>\u4e94\u3001\u4f60\u4e86\u89e3\u8fc7\u7684 JS \u6846\u67b6\u6709\u54ea\u4e9b\uff1f<\/h2>\n<p>\u622a\u81f3\u6211\u77e5\u8bc6\u622a\u6b62\u65e5\u671f\uff082022\u5e741\u6708\uff09\uff0cJavaScript\uff08JS\uff09\u751f\u6001\u7cfb\u7edf\u4e2d\u6709\u8bb8\u591a\u6d41\u884c\u7684\u6846\u67b6\u548c\u5e93\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684JS\u6846\u67b6\uff1a<\/p>\n<ol>\n<li><strong>React\uff1a<\/strong>\n<ul>\n<li>\u7531 Facebook \u5f00\u53d1\uff0c\u7528\u4e8e\u6784\u5efa\u7528\u6237\u754c\u9762\u7684\u5e93\u3002\u4f7f\u7528\u865a\u62dfDOM\u6765\u63d0\u9ad8\u6027\u80fd\uff0c\u652f\u6301\u7ec4\u4ef6\u5316\u5f00\u53d1\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Angular\uff1a<\/strong>\n<ul>\n<li>\u7531 Google \u5f00\u53d1\uff0c\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u524d\u7aef\u5f00\u53d1\u6846\u67b6\uff0c\u652f\u6301\u53cc\u5411\u6570\u636e\u7ed1\u5b9a\u3001\u4f9d\u8d56\u6ce8\u5165\u7b49\u7279\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Vue.js\uff1a<\/strong>\n<ul>\n<li>\u4e00\u5957\u7528\u4e8e\u6784\u5efa\u7528\u6237\u754c\u9762\u7684\u6e10\u8fdb\u5f0f\u6846\u67b6\uff0c\u6613\u4e8e\u96c6\u6210\uff0c\u5e76\u63d0\u4f9b\u4e86\u54cd\u5e94\u5f0f\u6570\u636e\u7ed1\u5b9a\u548c\u7ec4\u4ef6\u5316\u5f00\u53d1\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Node.js\uff1a<\/strong>\n<ul>\n<li>\u4e00\u4e2a\u57fa\u4e8eChrome V8\u5f15\u64ce\u7684JavaScript\u8fd0\u884c\u73af\u5883\uff0c\u7528\u4e8e\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u540e\u7aef\u670d\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Express.js\uff1a<\/strong>\n<ul>\n<li>\u57fa\u4e8eNode.js\u7684\u540e\u7aef\u6846\u67b6\uff0c\u7528\u4e8e\u6784\u5efaWeb\u5e94\u7528\u548cAPI\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>jQuery\uff1a<\/strong>\n<ul>\n<li>\u4e00\u4e2a\u7b80\u6d01\u3001\u5feb\u901f\u7684JavaScript\u5e93\uff0c\u7b80\u5316\u4e86HTML\u6587\u6863\u7684\u904d\u5386\u3001\u4e8b\u4ef6\u5904\u7406\u3001\u52a8\u753b\u7b49\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>D3.js\uff1a<\/strong>\n<ul>\n<li>\u7528\u4e8e\u5236\u4f5c\u57fa\u4e8e\u6570\u636e\u7684\u4ea4\u4e92\u5f0f\u53ef\u89c6\u5316\u7684\u5e93\uff0c\u652f\u6301SVG\u548cHTML\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Redux\uff1a<\/strong>\n<ul>\n<li>\u7528\u4e8e\u7ba1\u7406JavaScript\u5e94\u7528\u72b6\u6001\u7684\u5e93\uff0c\u5e38\u4e0eReact\u4e00\u8d77\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Next.js\uff1a<\/strong>\n<ul>\n<li>\u4e00\u4e2aReact\u6846\u67b6\uff0c\u7528\u4e8e\u6784\u5efa\u9759\u6001\u7f51\u7ad9\u548c\u670d\u52a1\u5668\u6e32\u67d3\u7684React\u5e94\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Electron\uff1a<\/strong>\n<ul>\n<li>\u7528\u4e8e\u6784\u5efa\u8de8\u5e73\u53f0\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\u7684\u6846\u67b6\uff0c\u652f\u6301\u4f7f\u7528HTML\u3001CSS\u548cJavaScript\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Three.js\uff1a<\/strong>\n<ul>\n<li>\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa3D\u56fe\u5f62\u7684JavaScript\u5e93\uff0c\u53ef\u4ee5\u5728Web\u6d4f\u89c8\u5668\u4e2d\u5b9e\u73b0\u5404\u79cd3D\u6548\u679c\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Webpack\uff1a<\/strong>\n<ul>\n<li>\u7528\u4e8e\u6253\u5305JavaScript\u5e94\u7528\u7a0b\u5e8f\u7684\u6a21\u5757\u5316\u6253\u5305\u5de5\u5177\uff0c\u652f\u6301\u4ee3\u7801\u5206\u5272\u3001\u61d2\u52a0\u8f7d\u7b49\u529f\u80fd\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>RxJS\uff1a<\/strong>\n<ul>\n<li>\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u548c\u4e8b\u4ef6\u9a71\u52a8\u7a0b\u5e8f\u7684\u5e93\uff0c\u5b9e\u73b0\u4e86\u54cd\u5e94\u5f0f\u7f16\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8bf7\u6ce8\u610f\uff0cJavaScript\u751f\u6001\u7cfb\u7edf\u662f\u975e\u5e38\u6d3b\u8dc3\u548c\u4e0d\u65ad\u53d1\u5c55\u7684\uff0c\u65b0\u7684\u6846\u67b6\u548c\u5e93\u53ef\u80fd\u4f1a\u5728\u6211\u77e5\u8bc6\u622a\u6b62\u65e5\u671f\u4e4b\u540e\u53d1\u5e03\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u67e5\u770b\u6700\u65b0\u7684\u6587\u6863\u548c\u793e\u533a\u52a8\u6001\u4ee5\u83b7\u53d6\u6700\u65b0\u4fe1\u606f\u3002<\/p>\n<h2>\u516d\u3001Ajax \u8bf7\u6c42\u7684\u65f6\u5019 GET \u548c POST \u65b9\u5f0f\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n<p>GET \u548c POST \u662f HTTP \u8bf7\u6c42\u7684\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n<p><strong>GET\uff1a<\/strong><br \/>\n&#8211; \u6570\u636e\u901a\u8fc7 URL \u53c2\u6570\u4f20\u9012\u3002<br \/>\n&#8211; \u4e0d\u591f\u5b89\u5168\uff0c\u9002\u5408\u4f20\u8f93\u975e\u654f\u611f\u4fe1\u606f\u3002<br \/>\n&#8211; \u53ef\u7f13\u5b58\uff0c\u53ef\u4ee5\u88ab\u6d4f\u89c8\u5668\u5386\u53f2\u8bb0\u5f55\u4fdd\u5b58\u3002<\/p>\n<p><strong>POST\uff1a<\/strong><br \/>\n&#8211; \u6570\u636e\u901a\u8fc7\u8bf7\u6c42\u4f53\u4f20\u9012\u3002<br \/>\n&#8211; \u76f8\u5bf9\u5b89\u5168\uff0c\u9002\u5408\u4f20\u8f93\u654f\u611f\u4fe1\u606f\u3002<br \/>\n&#8211; \u4e0d\u53ef\u7f13\u5b58\uff0c\u4e0d\u4fdd\u5b58\u5728\u6d4f\u89c8\u5668\u5386\u53f2\u8bb0\u5f55\u4e2d\u3002<\/p>\n<p>\u9009\u62e9\u4f7f\u7528 GET \u8fd8\u662f POST \u53d6\u51b3\u4e8e\u4e1a\u52a1\u9700\u6c42\u548c\u5b89\u5168\u8003\u8651\u3002GET \u7528\u4e8e\u83b7\u53d6\u8d44\u6e90\uff0cPOST \u7528\u4e8e\u63d0\u4ea4\u6570\u636e\u3002GET \u6570\u636e\u9644\u52a0\u5728 URL \u4e0a\uff0c\u9002\u5408\u4f20\u9012\u5c11\u91cf\u6570\u636e\uff1bPOST \u6570\u636e\u5728\u8bf7\u6c42\u4f53\u4e2d\uff0c\u9002\u5408\u4f20\u9012\u5927\u91cf\u6570\u636e\u3002<\/p>\n<h2>\u4e03\u3001\u5f53\u4e00\u4e2a DOM \u8282\u70b9\u88ab\u70b9\u51fb\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u80fd\u591f\u6267\u884c\u4e00\u4e2a\u51fd\u6570\uff0c\u8bf7\u7528\u4ee3\u7801\u5b9e\u73b0\uff1f<\/h2>\n<p>\u5728 JavaScript \u4e2d\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u7ed9 DOM \u8282\u70b9\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u6765\u5b9e\u73b0\u5f53\u8282\u70b9\u88ab\u70b9\u51fb\u65f6\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<pre data-language=HTML><code class=\"language-markup  line-numbers\">&lt;!DOCTYPE html&gt;\n&lt;html lang=\"en\"&gt;\n&lt;head&gt;\n  &lt;meta charset=\"UTF-8\"&gt;\n  &lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"&gt;\n  &lt;title&gt;Click Event Example&lt;\/title&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n\n&lt;!-- \u4e00\u4e2a\u70b9\u51fb\u89e6\u53d1\u4e8b\u4ef6\u7684\u6309\u94ae --&gt;\n&lt;button id=\"myButton\"&gt;Click me!&lt;\/button&gt;\n\n&lt;!-- \u7528\u4e8e\u663e\u793a\u70b9\u51fb\u6b21\u6570\u7684\u5143\u7d20 --&gt;\n&lt;p id=\"clickCount\"&gt;0&lt;\/p&gt;\n\n&lt;script&gt;\n  \/\/ \u83b7\u53d6\u6309\u94ae\u548c\u7528\u4e8e\u663e\u793a\u70b9\u51fb\u6b21\u6570\u7684\u5143\u7d20\n  var myButton = document.getElementById('myButton');\n  var clickCountElement = document.getElementById('clickCount');\n\n  \/\/ \u521d\u59cb\u5316\u70b9\u51fb\u6b21\u6570\n  var clickCount = 0;\n\n  \/\/ \u5b9a\u4e49\u70b9\u51fb\u4e8b\u4ef6\u7684\u5904\u7406\u51fd\u6570\n  function handleClick() {\n    \/\/ \u70b9\u51fb\u6b21\u6570\u52a01\n    clickCount++;\n\n    \/\/ \u66f4\u65b0\u663e\u793a\u70b9\u51fb\u6b21\u6570\u7684\u5143\u7d20\u5185\u5bb9\n    clickCountElement.textContent = 'Click count: ' + clickCount;\n  }\n\n  \/\/ \u7ed9\u6309\u94ae\u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u70b9\u51fb\u65f6\u6267\u884c handleClick \u51fd\u6570\n  myButton.addEventListener('click', handleClick);\n&lt;\/script&gt;\n\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u901a\u8fc7\u83b7\u53d6\u6309\u94ae\u548c\u7528\u4e8e\u663e\u793a\u70b9\u51fb\u6b21\u6570\u7684\u5143\u7d20\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a <code>handleClick<\/code> \u51fd\u6570\uff0c\u7136\u540e\u4f7f\u7528 <code>addEventListener<\/code> \u7ed9\u6309\u94ae\u6dfb\u52a0\u4e86\u4e00\u4e2a\u70b9\u51fb\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u6307\u5b9a\u70b9\u51fb\u65f6\u6267\u884c <code>handleClick<\/code> \u51fd\u6570\u3002\u70b9\u51fb\u6309\u94ae\u65f6\uff0c\u70b9\u51fb\u6b21\u6570\u4f1a\u589e\u52a0\uff0c\u5e76\u66f4\u65b0\u663e\u793a\u70b9\u51fb\u6b21\u6570\u7684\u5143\u7d20\u5185\u5bb9\u3002<\/p>\n<h2>\u516b\u3001\u91c7\u7528 SSH \u6216 Spring MVC \u6846\u67b6\u5b9e\u73b0\u7528\u6237\u6ce8\u518c\u529f\u80fd\uff0c\u753b\u51fa\u4ece\u524d\u53f0\u8bf7\u6c42\u5230\u540e\u53f0\u54cd\u5e94\u6574\u4e2a\u8fc7\u7a0b\u6d41\u7a0b\u56fe\uff0c\u5e76\u6709\u76f8\u5e94\u7684\u6587\u5b57\u8bf4\u660e\uff1f<\/h2>\n<p>\u6211\u53ef\u4ee5\u4e3a\u4f60\u63d0\u4f9b\u4e00\u4e2a\u6587\u5b57\u63cf\u8ff0\uff0c\u5e2e\u52a9\u4f60\u7406\u89e3\u4ece\u524d\u53f0\u8bf7\u6c42\u5230\u540e\u53f0\u54cd\u5e94\u7684\u6574\u4e2a\u7528\u6237\u6ce8\u518c\u6d41\u7a0b\u3002<\/p>\n<h3>\u7528\u6237\u6ce8\u518c\u6d41\u7a0b\uff08\u57fa\u4e8eSpring MVC\u6846\u67b6\uff09<\/h3>\n<ol>\n<li><strong>\u524d\u53f0\u53d1\u8d77\u6ce8\u518c\u8bf7\u6c42\uff1a<\/strong>\n<ul>\n<li>\u7528\u6237\u5728\u524d\u53f0\u754c\u9762\u586b\u5199\u6ce8\u518c\u4fe1\u606f\uff0c\u5305\u62ec\u7528\u6237\u540d\u3001\u5bc6\u7801\u7b49\u3002<\/li>\n<li>\u7528\u6237\u70b9\u51fb\u6ce8\u518c\u6309\u94ae\u89e6\u53d1\u524d\u53f0\u6ce8\u518c\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u524d\u53f0\u53d1\u9001\u8bf7\u6c42\u5230\u540e\u53f0\uff1a<\/strong>\n<ul>\n<li>\u4f7f\u7528SSH\u6846\u67b6\u7684\u524d\u53f0\u901a\u8fc7HTTP\u8bf7\u6c42\u5c06\u7528\u6237\u6ce8\u518c\u4fe1\u606f\u53d1\u9001\u5230\u540e\u53f0\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Spring MVC Controller\u5904\u7406\u8bf7\u6c42\uff1a<\/strong>\n<ul>\n<li>\u540e\u53f0Spring MVC\u6846\u67b6\u4e2d\u7684Controller\u63a5\u6536\u5230\u524d\u53f0\u7684\u8bf7\u6c42\u3002<\/li>\n<li>\u5728Controller\u4e2d\uff0c\u53ef\u80fd\u4f1a\u6709\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u6ce8\u518c\u8bf7\u6c42\u7684\u65b9\u6cd5\uff0c\u6bd4\u5982 <code>registerUser()<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Controller\u5904\u7406\u6ce8\u518c\u8bf7\u6c42\uff1a<\/strong>\n<ul>\n<li><code>registerUser()<\/code> \u65b9\u6cd5\u4ece\u8bf7\u6c42\u4e2d\u83b7\u53d6\u7528\u6237\u63d0\u4ea4\u7684\u6ce8\u518c\u4fe1\u606f\u3002<\/li>\n<li>\u5bf9\u7528\u6237\u8f93\u5165\u8fdb\u884c\u9a8c\u8bc1\uff0c\u5305\u62ec\u683c\u5f0f\u3001\u957f\u5ea6\u7b49\u6821\u9a8c\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u8c03\u7528\u4e1a\u52a1\u903b\u8f91\u5c42\uff08Service\uff09\uff1a<\/strong>\n<ul>\n<li>Controller \u8c03\u7528\u4e1a\u52a1\u903b\u8f91\u5c42\u7684\u670d\u52a1\u65b9\u6cd5\uff0c\u6bd4\u5982 <code>userService.registerUser(user)<\/code>\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4e1a\u52a1\u903b\u8f91\u5904\u7406\u6ce8\u518c\uff1a<\/strong>\n<ul>\n<li>\u5728\u4e1a\u52a1\u903b\u8f91\u5c42\uff0c\u5bf9\u7528\u6237\u7684\u6ce8\u518c\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\uff0c\u53ef\u80fd\u6d89\u53ca\u5230\u7528\u6237\u540d\u662f\u5426\u5df2\u5b58\u5728\u7b49\u903b\u8f91\u3002<\/li>\n<li>\u5982\u679c\u4e00\u5207\u6b63\u5e38\uff0c\u5c06\u7528\u6237\u4fe1\u606f\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6570\u636e\u6301\u4e45\u5316\uff08DAO\u5c42\uff09\uff1a<\/strong>\n<ul>\n<li>\u4e1a\u52a1\u903b\u8f91\u5c42\u8c03\u7528\u6570\u636e\u8bbf\u95ee\u5bf9\u8c61\uff08DAO\uff09\u5c06\u7528\u6237\u4fe1\u606f\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u8fd4\u56de\u54cd\u5e94\u7ed9\u524d\u53f0\uff1a<\/strong>\n<ul>\n<li>Controller \u63a5\u6536\u5230\u6ce8\u518c\u5904\u7406\u7684\u7ed3\u679c\uff0c\u53ef\u80fd\u8fd4\u56de\u4e00\u4e2a\u6210\u529f\u7684\u54cd\u5e94\u6216\u8005\u5305\u542b\u9519\u8bef\u4fe1\u606f\u7684\u54cd\u5e94\u3002<\/li>\n<li>\u524d\u53f0\u6839\u636e\u54cd\u5e94\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\uff0c\u6bd4\u5982\u8df3\u8f6c\u5230\u767b\u5f55\u9875\u9762\u6216\u8005\u663e\u793a\u6ce8\u518c\u6210\u529f\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7528\u6237\u6ce8\u518c\u6d41\u7a0b\uff0c\u4f7f\u7528\u4e86Spring MVC\u6846\u67b6\u8fdb\u884c\u8bf7\u6c42\u7684\u5904\u7406\u548c\u4e1a\u52a1\u903b\u8f91\u7684\u7ba1\u7406\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u8fd8\u5305\u62ec\u5b89\u5168\u6027\u3001\u4e8b\u52a1\u7ba1\u7406\u3001\u5f02\u5e38\u5904\u7406\u7b49\u65b9\u9762\u7684\u8003\u8651\u3002<\/p>\n<h2>\u4e5d\u3001\u6570\u636e\u5e93\u64cd\u4f5c\uff08\u4efb\u610f\u6570\u636e\u5e93\u8bed\u8a00\uff09\uff1f<\/h2>\n<p>\u6570\u636e\u5e93\u64cd\u4f5c\u7684\u8bed\u8a00\u901a\u5e38\u53d6\u51b3\u4e8e\u4f7f\u7528\u7684\u5177\u4f53\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff08DBMS\uff09\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u53ca\u5176\u5bf9\u5e94\u7684\u6570\u636e\u5e93\u8bed\u8a00\uff1a<\/p>\n<h3>1. SQL\uff08Structured Query Language\uff09<\/h3>\n<p>SQL \u662f\u4e00\u79cd\u901a\u7528\u7684\u6570\u636e\u5e93\u67e5\u8be2\u8bed\u8a00\uff0c\u51e0\u4e4e\u6240\u6709\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u90fd\u652f\u6301 SQL\u3002<\/p>\n<p><strong>\u5e38\u89c1\u7684 SQL \u64cd\u4f5c\u5305\u62ec\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u67e5\u8be2\u6570\u636e\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">SELECT column1, column2 FROM table WHERE condition;\n<\/code><\/pre>\n<\/li>\n<li><strong>\u63d2\u5165\u6570\u636e\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">INSERT INTO table (column1, column2) VALUES (value1, value2);\n<\/code><\/pre>\n<\/li>\n<li><strong>\u66f4\u65b0\u6570\u636e\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">UPDATE table SET column1 = value1 WHERE condition;\n<\/code><\/pre>\n<\/li>\n<li><strong>\u5220\u9664\u6570\u636e\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">DELETE FROM table WHERE condition;\n<\/code><\/pre>\n<\/li>\n<li><strong>\u521b\u5efa\u8868\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">CREATE TABLE table_name (\ncolumn1 datatype,\ncolumn2 datatype,\n...\n);\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<h3>2. MySQL<\/h3>\n<p>MySQL \u662f\u4e00\u79cd\u6d41\u884c\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u652f\u6301 SQL \u8bed\u8a00\u3002<\/p>\n<h3>3. PostgreSQL<\/h3>\n<p>PostgreSQL \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u652f\u6301 SQL \u8bed\u8a00\u3002<\/p>\n<h3>4. Oracle Database<\/h3>\n<p>Oracle Database \u662f\u4e00\u79cd\u5546\u4e1a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u540c\u6837\u652f\u6301 SQL \u8bed\u8a00\u3002<\/p>\n<h3>5. Microsoft SQL Server<\/h3>\n<p>Microsoft SQL Server \u662f Microsoft \u63d0\u4f9b\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4e5f\u652f\u6301 SQL \u8bed\u8a00\u3002<\/p>\n<h3>\u793a\u4f8b\uff1aMySQL \u6570\u636e\u5e93\u64cd\u4f5c<\/h3>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u540d\u4e3a <code>users<\/code> \u7684\u8868\uff0c\u5305\u542b <code>id<\/code>\u3001<code>username<\/code> \u548c <code>email<\/code> \u5b57\u6bb5\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b MySQL \u6570\u636e\u5e93\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8be2\u6240\u6709\u7528\u6237\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">SELECT * FROM users;\n<\/code><\/pre>\n<\/li>\n<li><strong>\u63d2\u5165\u65b0\u7528\u6237\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">INSERT INTO users (username, email) VALUES ('john_doe', 'john@example.com');\n<\/code><\/pre>\n<\/li>\n<li><strong>\u66f4\u65b0\u7528\u6237\u4fe1\u606f\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">UPDATE users SET email = 'new_email@example.com' WHERE username = 'john_doe';\n<\/code><\/pre>\n<\/li>\n<li><strong>\u5220\u9664\u7528\u6237\uff1a<\/strong>\n<pre><code class=\"language-sql  line-numbers\">DELETE FROM users WHERE username = 'john_doe';\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p>\u8fd9\u53ea\u662f\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5b9e\u9645\u5e94\u7528\u4e2d\u4f1a\u6709\u66f4\u590d\u6742\u7684\u67e5\u8be2\u3001\u4e8b\u52a1\u3001\u7d22\u5f15\u7b49\u64cd\u4f5c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001java \u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6709\u54ea\u4e9b\uff1f Java \u7684\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a \u6574\u6570\u7c7b\u578b\uff1a byte\uff1a8 \u4f4d\uff0c\u6709 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-16998","post","type-post","status-publish","format-standard","hentry","category-gongsi"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16998","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=16998"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16998\/revisions"}],"predecessor-version":[{"id":16999,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/16998\/revisions\/16999"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=16998"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=16998"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=16998"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}