{"id":38371,"date":"2023-08-26T22:49:09","date_gmt":"2024-01-22T20:44:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/react%e5%85%a5%e9%97%a88%ef%bc%9a%e5%ae%9e%e7%8e%b0%e6%96%87%e6%9c%ac\/"},"modified":"2024-04-30T20:14:30","modified_gmt":"2024-04-30T12:14:30","slug":"react%e5%85%a5%e9%97%a88%ef%bc%9a%e5%ae%9e%e7%8e%b0%e6%96%87%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/react%e5%85%a5%e9%97%a88%ef%bc%9a%e5%ae%9e%e7%8e%b0%e6%96%87%e6%9c%ac\/","title":{"rendered":"React\u5165\u95e88\uff1a\u5b9e\u73b0\u6587\u672c"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u60f3\u4ee5\u590d\u4e60\u548c\u5907\u5fd8\u5f55\u7684\u610f\u4e49\uff0c\u901a\u8fc7\u591a\u7bc7\u6587\u7ae0\u4f7f\u7528React\u6765\u5f00\u53d1\u4e95\u5b57\u68cb\u6e38\u620f\uff08\u4e09\u76ee\u4e26\u3079\uff09\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">React<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">CodeSandbox(\u516c\u5f0f)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">CodeSandbox(\u975e\u516c\u5f0f)<\/ul>\n<h2>\u7cfb\u5217\u5217\u8868<\/h2>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e81\uff1a\u73af\u5883\u642d\u5efa [\u5728\u7ebf\u7248\u672c]<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e81.5\uff1a\u73af\u5883\u642d\u5efa [\u672c\u5730\u7248\u672c &#8211; \u5916\u4f20]<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e82\uff1a\u68cb\u76d8\u521b\u5efa<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e83\uff1a\u4ea4\u4e92\u5b9e\u73b0<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e84\uff1a\u91cd\u6784 [\u63d0\u5347\u7f16\u8f91]<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e85\uff1a\u91cd\u6784 [\u4ea4\u4e92\u7f16\u8f91]<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e86\uff1a\u56de\u5408\u5236\u5b9e\u73b0<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e87\uff1a\u6e38\u620f\u80dc\u5229\u5224\u5b9a<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e88\uff1a\u6587\u672c\u5b9e\u73b0\uff08\u672c\u8282\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e89\uff1a\u65f6\u95f4\u65c5\u884c\uff081\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>React\u5165\u95e810\uff1a\u65f6\u95f4\u65c5\u884c\uff082\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>React\u5165\u95e811\uff1a\u65f6\u95f4\u65c5\u884c\uff083\uff09<\/ol>\n<h1>\u5173\u4e8e\u76ee\u7684<\/h1>\n<h2>\u6240\u6709\u4eba\u7684\u76ee\u6807<\/h2>\n<p>\u6211\u4eec\u5c06\u5728 React \u516c\u5f0f\u6559\u7a0b\u4e2d\u53d1\u5e03\u7684\u4e95\u5b57\u6e38\u620f\u4e2d\u5b9e\u73b0\u4e00\u4e2a3&#215;3\u7684\u68cb\u76d8\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>\u8fd9\u6b21\u7684\u76ee\u7684\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u6211\u4eec\u5c06\u5b9e\u73b0\u663e\u793a\u6e38\u620f\u72b6\u6001\u7684\u6587\u672c\u3002\u53e6\u5916\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u4e0a\u6b21\u521b\u5efa\u7684 calculateWinner() \u51fd\u6570\uff0c\u4ee5\u4fbf\u5728\u6709\u7ed3\u679c\u65f6\u4e5f\u80fd\u663e\u793a\u83b7\u80dc\u8005\u3002<\/p>\n<h1>\u6587\u672c\u7684\u5b9e\u65bd<\/h1>\n<p>\u60a8\u53ef\u4ee5\u5728\u4e0b\u4e00\u9875\u4e0a\u67e5\u770b\u4e0a\u6b21\u7684\u6e90\u6587\u4ef6\u3002<\/p>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u524d\u56de\u306e\u5185\u5bb9\u306f\u30b3\u30c1\u30e9\u304b\u3089\uff01<\/ul>\n<p>&nbsp;<\/p>\n<h2>\u663e\u793a\u6587\u672c<\/h2>\n<p>\u8ba9\u6211\u4eec\u5728App.js\u4e2d\u7684Board\u7ec4\u4ef6\u7684return\u8bed\u53e5\u4e2d\u6dfb\u52a0<\/p>\n<div>\n<p>\u5143\u7d20\uff0c\u4ee5\u5728\u68cb\u76d8\u4e0a\u663e\u793a\u6587\u672c\u3002\u8ba9\u6211\u4eec\u5c1d\u8bd5\u7f16\u5199\u4ee3\u7801\u4ee5\u6ee1\u8db3\u4ee5\u4e0b\u8981\u6c42\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u76e4\u9762\u306e\u4e0a\u306b\u6587\u5b57\u3092\u8868\u793a\u3059\u308b\u306b\u306f return \u6587\u306e\u3069\u3053\u306b<\/ul>\n<\/li>\n<\/ul>\n<div>\u8981\u7d20\u3092\u52a0\u3048\u308c\u3070\u3088\u3044\u304b<br \/>\n\u300c \u30b2\u30fc\u30e0\u306e\u72b6\u6cc1 \u300d\u3068\u3044\u3046\u30c6\u30ad\u30b9\u30c8\u3092\u8868\u793a\u3059\u308b<\/div>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"kd\">function<\/span> <span class=\"nf\">Board<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\r\n  <span class=\"cm\">\/* \u7701\u7565 *\/<\/span>\r\n\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"p\">&lt;&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\u30b2\u30fc\u30e0\u306e\u72b6\u6cc1<span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">0<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">3<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">4<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">5<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">5<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">6<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">6<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">7<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">7<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">8<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">8<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n    <span class=\"p\">&lt;\/&gt;<\/span>\r\n  <span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0b\u9762\u5c06\u5c55\u793a\u52a8\u4f5c\u7ed3\u679c\u3002\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u5728\u68cb\u76d8\u4e0a\u663e\u793a\u201c\u6e38\u620f\u72b6\u51b5\u201d\u7684\u6587\u672c\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d344137434c4406c68557\/21-0.png\" alt=\"image.png\" \/><\/div>\n<h2>\u663e\u793a\u8f6e\u5230\u7684\u73a9\u5bb6<\/h2>\n<p>\u901a\u8fc7\u6587\u672c\u663e\u793a\u5f53\u524d\u73a9\u5bb6\u662f\u201cX\u201d\u8fd8\u662f\u201cO\u201d\u3002<\/p>\n<p>\u4f7f\u7528\u7b2c6\u7bc7\u6587\u7ae0\u4e2d\u5b9a\u4e49\u7684\u7528\u4e8e\u7ba1\u7406\u56de\u5408\u987a\u5e8f\u7684\u72b6\u6001\u7c7b\u578b\u53d8\u91cfxIsNext\uff0c\u6765\u83b7\u53d6\u5f53\u524d\u7684\u73a9\u5bb6\u3002\u8be5\u53d8\u91cf\u8868\u793a\u4e3atrue\u65f6\u4ee3\u8868\u73a9\u5bb6\u201cX\u201d\uff0c\u8868\u793a\u4e3afalse\u65f6\u4ee3\u8868\u73a9\u5bb6\u201cO\u201d\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u63a7\u5236\u6587\u672c\uff08\u72b6\u6001\u53d8\u91cf\uff09\u5982\u4e0b\u6240\u793a\uff0c\u53ef\u4ee5\u8868\u793a\u6b63\u5728\u64cd\u4f5c\u7684\u73a9\u5bb6\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"kd\">let<\/span> <span class=\"nx\">status<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30d7\u30ec\u30a4\u30e4\u30fc: <\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">xIsNext<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">+=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">X<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">+=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">O<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u5bf9 App.js \u4e2d\u7684 Board() \u7ec4\u4ef6\u8fdb\u884c\u5982\u4e0b\u66f4\u6539\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u624b\u756a\u3092\u8868\u793a\u3059\u308b\u30c6\u30ad\u30b9\u30c8\u306e\u5236\u5fa1\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u88c5\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>\u30b2\u30fc\u30e0\u306e\u72b6\u6cc1\u3092\u6587\u5b57\u5217\u3067\u793a\u3059 status \u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b<\/p>\n<p>status \u5909\u6570\u306e\u5185\u5bb9\u3092\u624b\u756a (xIsNext \u5909\u6570) \u306b\u5fdc\u3058\u3066\u66f4\u65b0\u3059\u308b<\/p>\n<p>return \u6587\u306b\u3042\u308b<\/p>\n<div>\n<p>\u8981\u7d20\u3067\u624b\u756a\u3092\u8868\u793a\u3055\u305b\u308b<\/p>\n<p>JSX \u306e\u6587\u6cd5\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046<\/p>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"kd\">function<\/span> <span class=\"nf\">Board<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"cm\">\/* \u7701\u7565 *\/<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">status<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30d7\u30ec\u30a4\u30e4\u30fc: <\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">xIsNext<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">+=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">X<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">+=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">O<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"o\">&lt;&gt;<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">{<\/span><span class=\"nx\">status<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/div<\/span><span class=\"err\">&gt;\r\n<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span> <span class=\"nx\">className<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">board-row<\/span><span class=\"dl\">\"<\/span><span class=\"o\">&gt;<\/span>\r\n      <span class=\"cm\">\/* \u7701\u7565 *\/<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"sr\">\/div<\/span><span class=\"err\">&gt;\r\n<\/span>    <span class=\"o\">&lt;<\/span><span class=\"sr\">\/<\/span><span class=\"err\">&gt;\r\n<\/span>  <span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u52a8\u4f5c\u7ed3\u679c\u3002\u73b0\u5728\uff0c\u5728\u70b9\u51fb\u7a7a\u767d\u683c\u4e4b\u540e\uff0c\u6587\u672c\u5c06\u4f1a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d344137434c4406c68557\/31-0.gif\" alt=\"output_video.gif\" \/><\/div>\n<h3>\u4f7f\u7528\u4e09\u4e2a\u6761\u4ef6\u8fd0\u7b97\u7b26<\/h3>\n<p>\u4ee5\u4e0b\u662f\u5173\u4e8eJavaScript\u8bed\u6cd5\u7684\u5185\u5bb9\u3002\u7531\u4e8e\u4e0d\u6d89\u53ca\u64cd\u4f5c\u7ed3\u679c\u7684\u66f4\u6539\uff0c\u53ef\u4ee5\u8df3\u8fc7\u663e\u793a\u80dc\u8005\u7684\u90e8\u5206\u800c\u4e0d\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n<p>\u6211\u4eec\u5c06\u4e4b\u524d\u7684\u4ee3\u7801\u4f7f\u7528\u6761\u4ef6\uff08\u4e09\u5143\uff09\u8fd0\u7b97\u7b26\u8fdb\u884c\u7b80\u5316\u3002\u9996\u5148\uff0c\u6211\u4eec\u5c55\u793a\u719f\u6089\u7684if-else\u8bed\u53e5\u7684\u8bed\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">\u6761\u4ef6<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">\u771f\u306e\u3068\u304d\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">\u507d\u306e\u3068\u304d\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u7528\u6761\u4ef6\uff08\u4e09\u5143\uff09\u8fd0\u7b97\u7b26\u6765\u8868\u793a\u8fd9\u4e2a\uff0c\u90a3\u4e48\u5b83\u7684\u8bed\u6cd5\u5c06\u53d8\u4e3a\u4e0b\u9762\u8fd9\u6837\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nx\">\u6761\u4ef6<\/span> <span class=\"p\">?<\/span> <span class=\"nx\">\u771f\u306e\u3068\u304d\u306b\u8fd4\u3059\u5024<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">\u507d\u306e\u3068\u304d\u306b\u8fd4\u3059\u5024<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u60f3\u67e5\u9605\u66f4\u8be6\u7ec6\u7684\u5185\u5bb9\uff0c\u8bf7\u67e5\u770b\u4ee5\u4e0b\u53c2\u8003\u8d44\u6599\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u4ee5\u4e0b\u4ee3\u7801\u6765\u63a7\u5236\u663e\u793a\u56de\u5408\u7684\u6587\u5b57\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"kd\">let<\/span> <span class=\"nx\">status<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30d7\u30ec\u30a4\u30e4\u30fc: <\/span><span class=\"dl\">\"<\/span> <span class=\"o\">+<\/span> <span class=\"p\">(<\/span><span class=\"nx\">xIsNext<\/span> <span class=\"p\">?<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">X<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">O<\/span><span class=\"dl\">\"<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u95f2\u8c08\u4e00\u4e0b\uff0c\u636e\u8bf4\u5c06\u4ee3\u7801\u7701\u7565\u6210\u8fd9\u6837\u5c31\u53eb\u505a\u201c\u5feb\u6377\u65b9\u5f0f\u201d\u3002<\/p>\n<h2>\u80dc\u8005\u7684\u5c55\u793a<\/h2>\n<p>\u4e3a\u4e86\u5728\u6e38\u620f\u7ed3\u675f\u65f6\u80fd\u591f\u663e\u793a\u51fa\u80dc\u5229\u8005\uff0c\u8ba9\u6211\u4eec\u5bf9App.js\u6587\u4ef6\u4e2d\u7684Board\u7ec4\u4ef6\u8fdb\u884c\u4ee5\u4e0b\u66f4\u6539\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u52dd\u8005\u3092\u793a\u3059 winner \u5909\u6570\u3092\u5ba3\u8a00\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>\u521d\u671f\u5024\u3092\u52dd\u5229\u5224\u5b9a (calculateWinner() \u95a2\u6570) \u306e\u7d50\u679c\u3068\u3059\u308b<\/p>\n<p>\u52dd\u5229\u5224\u5b9a\u306e\u7d50\u679c\u306b\u5fdc\u3058\u3066\u30c6\u30ad\u30b9\u30c8\u306e\u5185\u5bb9\u3092\u5909\u66f4\u3059\u308b<\/p>\n<p>\u52dd\u8005\u304c\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u5370\u3092\u8868\u793a\u3059\u308b<\/p>\n<p>\u300cX\u300d\u304c\u52dd\u3063\u305f\u3068\u304d\u3001\u300c\u52dd\u8005: X\u300d<br \/>\n\u300cO\u300d\u304c\u52dd\u3063\u305f\u3068\u304d\u3001\u300c\u52dd\u8005: O\u300d<\/p>\n<p>\u52dd\u8005\u304c\u6c7a\u307e\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u30d7\u30ec\u30a4\u30e4\u30fc\u3092\u8868\u793a\u3059\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">useState<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">react<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">.\/styles.css<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">function<\/span> <span class=\"nf\">Square<\/span><span class=\"p\">({<\/span> <span class=\"nx\">value<\/span><span class=\"p\">,<\/span> <span class=\"nx\">onSquareClick<\/span> <span class=\"p\">})<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"p\">&lt;<\/span><span class=\"nt\">button<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"square\"<\/span> <span class=\"na\">onClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">onSquareClick<\/span><span class=\"si\">}<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"si\">{<\/span><span class=\"nx\">value<\/span><span class=\"si\">}<\/span>\r\n    <span class=\"p\">&lt;\/<\/span><span class=\"nt\">button<\/span><span class=\"p\">&gt;<\/span>\r\n  <span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"kd\">function<\/span> <span class=\"nf\">Board<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">squares<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setSquares<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useState<\/span><span class=\"p\">(<\/span><span class=\"nc\">Array<\/span><span class=\"p\">(<\/span><span class=\"mi\">9<\/span><span class=\"p\">).<\/span><span class=\"nf\">fill<\/span><span class=\"p\">(<\/span><span class=\"kc\">null<\/span><span class=\"p\">));<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"p\">[<\/span><span class=\"nx\">xIsNext<\/span><span class=\"p\">,<\/span> <span class=\"nx\">setXIsNext<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">useState<\/span><span class=\"p\">(<\/span><span class=\"kc\">true<\/span><span class=\"p\">);<\/span>\r\n\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">winner<\/span> <span class=\"o\">=<\/span> <span class=\"nf\">calculateWinner<\/span><span class=\"p\">(<\/span><span class=\"nx\">squares<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"kd\">let<\/span> <span class=\"nx\">status<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">winner<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u52dd\u8005: <\/span><span class=\"dl\">\"<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">winner<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nx\">status<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">\u30d7\u30ec\u30a4\u30e4\u30fc: <\/span><span class=\"dl\">\"<\/span> <span class=\"o\">+<\/span> <span class=\"p\">(<\/span><span class=\"nx\">xIsNext<\/span> <span class=\"p\">?<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">X<\/span><span class=\"dl\">\"<\/span> <span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">O<\/span><span class=\"dl\">\"<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"kd\">function<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"nx\">i<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">])<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">return<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">nextSquares<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">.<\/span><span class=\"nf\">slice<\/span><span class=\"p\">();<\/span>\r\n\r\n    <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">xIsNext<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">nextSquares<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">X<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nx\">nextSquares<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">O<\/span><span class=\"dl\">\"<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">setSquares<\/span><span class=\"p\">(<\/span><span class=\"nx\">nextSquares<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nf\">setXIsNext<\/span><span class=\"p\">(<\/span><span class=\"o\">!<\/span><span class=\"nx\">xIsNext<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"p\">&lt;&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span><span class=\"si\">{<\/span><span class=\"nx\">status<\/span><span class=\"si\">}<\/span><span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">0<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">3<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">4<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">4<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">5<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">5<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n      <span class=\"p\">&lt;<\/span><span class=\"nt\">div<\/span> <span class=\"na\">className<\/span><span class=\"p\">=<\/span><span class=\"s\">\"board-row\"<\/span><span class=\"p\">&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">6<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">6<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">7<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">7<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n        <span class=\"p\">&lt;<\/span><span class=\"nc\">Square<\/span> <span class=\"na\">value<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"mi\">8<\/span><span class=\"p\">]<\/span><span class=\"si\">}<\/span> <span class=\"na\">onSquareClick<\/span><span class=\"p\">=<\/span><span class=\"si\">{<\/span><span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nf\">handleClick<\/span><span class=\"p\">(<\/span><span class=\"mi\">8<\/span><span class=\"p\">)<\/span><span class=\"si\">}<\/span> <span class=\"p\">\/&gt;<\/span>\r\n      <span class=\"p\">&lt;\/<\/span><span class=\"nt\">div<\/span><span class=\"p\">&gt;<\/span>\r\n    <span class=\"p\">&lt;\/&gt;<\/span>\r\n  <span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">function<\/span> <span class=\"nf\">calculateWinner<\/span><span class=\"p\">(<\/span><span class=\"nx\">squares<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"kd\">const<\/span> <span class=\"nx\">lines<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">5<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">6<\/span><span class=\"p\">,<\/span> <span class=\"mi\">7<\/span><span class=\"p\">,<\/span> <span class=\"mi\">8<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"mi\">6<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">7<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">5<\/span><span class=\"p\">,<\/span> <span class=\"mi\">8<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">8<\/span><span class=\"p\">],<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"mi\">4<\/span><span class=\"p\">,<\/span> <span class=\"mi\">6<\/span><span class=\"p\">],<\/span>\r\n  <span class=\"p\">];<\/span>\r\n\r\n  <span class=\"k\">for <\/span><span class=\"p\">(<\/span><span class=\"kd\">let<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">0<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"nx\">lines<\/span><span class=\"p\">.<\/span><span class=\"nx\">length<\/span><span class=\"p\">;<\/span> <span class=\"nx\">i<\/span><span class=\"o\">++<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">lines<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">][<\/span><span class=\"mi\">0<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">b<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">lines<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">][<\/span><span class=\"mi\">1<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"kd\">const<\/span> <span class=\"nx\">c<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">lines<\/span><span class=\"p\">[<\/span><span class=\"nx\">i<\/span><span class=\"p\">][<\/span><span class=\"mi\">2<\/span><span class=\"p\">];<\/span>\r\n\r\n    <span class=\"k\">if <\/span><span class=\"p\">(<\/span><span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">a<\/span><span class=\"p\">]<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">a<\/span><span class=\"p\">]<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">b<\/span><span class=\"p\">]<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">a<\/span><span class=\"p\">]<\/span> <span class=\"o\">===<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">c<\/span><span class=\"p\">])<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">return<\/span> <span class=\"nx\">squares<\/span><span class=\"p\">[<\/span><span class=\"nx\">a<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u4e0b\u9762\u5c06\u5c55\u793a\u52a8\u4f5c\u7684\u7ed3\u679c\u3002\u8fd9\u6837\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u663e\u793a\u64cd\u4f5c\u73a9\u5bb6\uff0c\u8fd8\u53ef\u4ee5\u663e\u793a\u83b7\u80dc\u8005\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d344137434c4406c68557\/48-0.gif\" alt=\"\u52dd\u8005\u306e\u5224\u5b9a.gif\" \/><\/div>\n<p>\u8fd9\u6837\u6e38\u620f\u7cfb\u7edf\u5c31\u5b8c\u6210\u4e86\uff01<\/p>\n<h1>\u6700\u540e<\/h1>\n<p>\u8fd9\u6b21\u6211\u4eec\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7528\u4e8e\u663e\u793a\u6e38\u620f\u72b6\u6001\u7684\u6587\u672c\u3002\u901a\u8fc7\u8fd9\u4e2a\u529f\u80fd\uff0c\u4e95\u5b57\u6e38\u620f\u7684\u4e3b\u8981\u529f\u80fd\u5df2\u7ecf\u5b8c\u6210\u4e86\uff01\u8f9b\u82e6\u4e86\u3002\u4e0b\u4e00\u9875\u5c06\u5c55\u793a\u6e90\u4ee3\u7801\u6587\u4ef6\u3002<\/p>\n<p>&nbsp;<\/p>\n<div>\u5173\u4e8e\u672a\u6765<br \/>\n\u6211\u4eec\u5df2\u7ecf\u5f00\u53d1\u4e86\u4e95\u5b57\u68cb\u6e38\u620f\uff0c\u4f46\u8fd8\u6709\u5f88\u591a\u53ef\u4ee5\u6dfb\u52a0\u7684\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5b98\u65b9\u6559\u7a0b\u8fd8\u6709\u540e\u7eed\u5185\u5bb9\uff0c\u5e76\u4ecb\u7ecd\u4e86\u5173\u4e8e\u56de\u5230\u8fc7\u53bb\u7684\u529f\u80fd\u3002\u5982\u679c\u60a8\u6709\u5174\u8da3\uff0c\u8bf7\u4fee\u6539\u4e0a\u8ff0\u6e90\u6587\u4ef6\u5e76\u53c2\u8003\u4e0b\u4e00\u9875\u3002\uff08\u6211\u4e5f\u53ef\u80fd\u4f1a\u5728\u4ee5\u540e\u7684\u6587\u7ae0\u4e2d\u8fdb\u884c\u603b\u7ed3&#8230; \u2190 \u6211\u5df2\u5c06\u5176\u603b\u7ed3\u5728\u7b2c\u4e5d\u7bc7\u53ca\u4ee5\u540e\u7684\u6587\u7ae0\u4e2d\uff09\u6559\u7a0b\uff1a\u4e09\u5b50\u68cb &#8211; React [\u6dfb\u52a0\u65f6\u95f4\u65c5\u884c]<\/div>\n<p>\u4ece\u4e0b\u4e00\u6b21\u5f00\u59cb\uff0c\u6211\u4eec\u5c06\u9010\u6b65\u6dfb\u52a0\u65f6\u95f4\u65c5\u884c\u529f\u80fd\u5230\u6e38\u620f\u4e2d\u3002<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u60f3\u4ee5\u590d\u4e60\u548c\u5907\u5fd8\u5f55\u7684\u610f\u4e49\uff0c\u901a\u8fc7\u591a\u7bc7\u6587\u7ae0\u4f7f\u7528React\u6765\u5f00\u53d1\u4e95\u5b57\u68cb\u6e38\u620f\uff08\u4e09\u76ee\u4e26\u3079\uff09\u3002 React &#038;nbs [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38371","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>React\u5165\u95e88\uff1a\u5b9e\u73b0\u6587\u672c - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/react\u5165\u95e88\uff1a\u5b9e\u73b0\u6587\u672c\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"React\u5165\u95e88\uff1a\u5b9e\u73b0\u6587\u672c\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u6211\u60f3\u4ee5\u590d\u4e60\u548c\u5907\u5fd8\u5f55\u7684\u610f\u4e49\uff0c\u901a\u8fc7\u591a\u7bc7\u6587\u7ae0\u4f7f\u7528React\u6765\u5f00\u53d1\u4e95\u5b57\u68cb\u6e38\u620f\uff08\u4e09\u76ee\u4e26\u3079\uff09\u3002 React &amp;nbs [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/react\u5165\u95e88\uff1a\u5b9e\u73b0\u6587\u672c\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-22T20:44:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T12:14:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d344137434c4406c68557\/21-0.png\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" 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