{"id":38500,"date":"2023-03-26T22:39:34","date_gmt":"2023-03-11T17:04:51","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8react%e5%ae%98%e6%96%b9%e6%95%99%e7%a8%8b%e4%b8%ad%e5%ad%a6%e5%88%b0%e7%9a%84%e7%ac%94%e8%ae%b0%ef%bc%88jsx%e3%80%81react%e5%85%83%e7%b4%a0%e3%80%81react%e7%bb%84%e4%bb%b6%ef%bc%89\/"},"modified":"2024-04-29T20:40:23","modified_gmt":"2024-04-29T12:40:23","slug":"%e5%9c%a8react%e5%ae%98%e6%96%b9%e6%95%99%e7%a8%8b%e4%b8%ad%e5%ad%a6%e5%88%b0%e7%9a%84%e7%ac%94%e8%ae%b0%ef%bc%88jsx%e3%80%81react%e5%85%83%e7%b4%a0%e3%80%81react%e7%bb%84%e4%bb%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8react%e5%ae%98%e6%96%b9%e6%95%99%e7%a8%8b%e4%b8%ad%e5%ad%a6%e5%88%b0%e7%9a%84%e7%ac%94%e8%ae%b0%ef%bc%88jsx%e3%80%81react%e5%85%83%e7%b4%a0%e3%80%81react%e7%bb%84%e4%bb%b6%ef%bc%89\/","title":{"rendered":"\u5728React\u5b98\u65b9\u6559\u7a0b\u4e2d\u5b66\u5230\u7684\u7b14\u8bb0\uff08JSX\u3001React\u5143\u7d20\u3001React\u7ec4\u4ef6\uff09"},"content":{"rendered":"<p>\u8fd9\u662f\u4e00\u4e2a\u7b80\u77ed\u7684\u603b\u7ed3\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">JSX<\/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\">Rendering Elements<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Components and Props<\/ul>\n<h2>JSX -&gt; JSX<\/h2>\n<p>\u8fd9\u662f\u4e00\u79cd\u7528\u4e8eJS\u7684\u6269\u5c55\u8bed\u6cd5\uff0c\u88ab\u63a8\u8350\u5728React\u4e2d\u4f7f\u7528\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"nx\">world<\/span><span class=\"o\">!&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span><\/code><\/pre>\n<p>\u5728{}\u4e2d\u80fd\u591f\u5d4c\u5165JS\u8bed\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">formatName<\/span><span class=\"p\">(<\/span><span class=\"nx\">user<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nx\">firstName<\/span> <span class=\"o\">+<\/span> <span class=\"dl\">'<\/span> <span class=\"dl\">'<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nx\">lastName<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">user<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"na\">firstName<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Harper<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">lastName<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Perez<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span>\r\n    <span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"nf\">formatName<\/span><span class=\"p\">(<\/span><span class=\"nx\">user<\/span><span class=\"p\">)}<\/span><span class=\"o\">!<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1<\/span><span class=\"err\">&gt;\r\n<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"nx\">ReactDOM<\/span><span class=\"p\">.<\/span><span class=\"nf\">render<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"nx\">element<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">root<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>CodePen \u72ec\u7acb\u8fd0\u8425\u7684\u5728\u7ebf\u793e\u533a\u9891\u9053\uff0c\u8ba9\u7528\u6237\u53ef\u4ee5\u5b9e\u65f6\u7f16\u8f91\u548c\u5c55\u793a HTML\u3001CSS \u548c JavaScript \u4ee3\u7801\u3002<\/p>\n<p>\u5728\u5c06JS\u653e\u5165HTML\u5c5e\u6027\u65f6\uff0c\u8bf7\u6ce8\u610f\u4e0d\u8981\u6dfb\u52a0&#8221;&#8221;\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">img<\/span> <span class=\"nx\">src<\/span><span class=\"o\">=<\/span><span class=\"p\">{<\/span><span class=\"nx\">user<\/span><span class=\"p\">.<\/span><span class=\"nx\">avatarUrl<\/span><span class=\"p\">}<\/span><span class=\"o\">&gt;&lt;<\/span><span class=\"sr\">\/img&gt;<\/span><span class=\"err\">;\r\n<\/span><\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u5c5e\u6027\u7684\u6807\u7b7e\u5e94\u91c7\u7528\u9a7c\u5cf0\u547d\u540d\u6cd5\u3002\uff08\u4f8b\u5982\uff1aclassName\u3001tabIndex\uff09<\/p>\n<p>\u5982\u679c\u8981\u5b9a\u4e49\u5d4c\u5957\u7684DOM\uff0c\u8bf7\u4f7f\u7528\u62ec\u53f7()\u8fdb\u884c\u5305\u56f4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span><span class=\"o\">&gt;<\/span>\r\n    <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"o\">!&lt;<\/span><span class=\"sr\">\/h1<\/span><span class=\"err\">&gt;\r\n<\/span>    <span class=\"o\">&lt;<\/span><span class=\"nx\">h2<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Good<\/span> <span class=\"nx\">to<\/span> <span class=\"nx\">see<\/span> <span class=\"nx\">you<\/span> <span class=\"nx\">here<\/span><span class=\"p\">.<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h2<\/span><span class=\"err\">&gt;\r\n<\/span>  <span class=\"o\">&lt;<\/span><span class=\"sr\">\/div<\/span><span class=\"err\">&gt;\r\n<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u4f5c\u4e3a\u8de8\u7ad9\u811a\u672c\u653b\u51fb\u7684\u9632\u8303\u63aa\u65bd\uff0c\u5d4c\u5165\u5728JSX\u4e2d\u7684\u503c\u4f1a\u5728React DOM\u6e32\u67d3\u4e4b\u524d\u8fdb\u884c\u8f6c\u4e49\uff0c\u56e0\u6b64\u5f88\u5b89\u5168\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ title\u306b\u5371\u967a\u306a\u5024\u304c\u5165\u3063\u3066\u3044\u3066\u3082\u30a8\u30b9\u30b1\u30fc\u30d7\u3055\u308c\u308b.<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">{<\/span><span class=\"nx\">title<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span><\/code><\/pre>\n<h2>React\u5143\u7d20\u548c\u6e32\u67d3<\/h2>\n<p>\u901a\u8fc7Babel\u7684\u8f6c\u6362\uff0cJSX\u53d8\u6210\u4e86React\u5143\u7d20\u7684\u5bf9\u8c61\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ \u3053\u308c\u304c<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span> <span class=\"nx\">className<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">greeting<\/span><span class=\"dl\">\"<\/span><span class=\"o\">&gt;<\/span>\r\n    <span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"nx\">world<\/span><span class=\"o\">!<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1<\/span><span class=\"err\">&gt;\r\n<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u3053\u3046\u306a\u3063\u3066<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">React<\/span><span class=\"p\">.<\/span><span class=\"nf\">createElement<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"dl\">'<\/span><span class=\"s1\">h1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"p\">{<\/span><span class=\"na\">className<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">greeting<\/span><span class=\"dl\">'<\/span><span class=\"p\">},<\/span>\r\n  <span class=\"dl\">'<\/span><span class=\"s1\">Hello, world!<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/ \u3053\u3046\u306a\u308b<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"na\">type<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">h1<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">props<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"na\">className<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">greeting<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"na\">children<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">Hello, world!<\/span><span class=\"dl\">'<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<p>\u5728React\u4e2d\uff0c\u7528\u4e8e\u64cd\u4f5c\u7684\u8303\u56f4\u88ab\u79f0\u4e3a\u6839DOM\u8282\u70b9\uff0c\u5e76\u9644\u5e26\u4e00\u4e2a\u540d\u4e3aroot\u7684ID\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0cReact\u5e94\u7528\u7a0b\u5e8f\u4e2d\u53ea\u4f1a\u5b58\u5728\u4e00\u4e2a\u6839DOM\u8282\u70b9\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528ReactDOM.render()\u6765\u64cd\u4f5c\u8fd9\u4e2a\u8282\u70b9\u7684\u5185\u5bb9\u3002\u5728\u5e38\u89c4\u7684React\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u901a\u5e38\u53ea\u9700\u8981\u8c03\u7528\u4e00\u6b21ReactDOM.render()\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/ \u30eb\u30fc\u30c8DOM\u30ce\u30fc\u30c9<\/span>\r\n<span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span> <span class=\"nx\">id<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">root<\/span><span class=\"dl\">\"<\/span><span class=\"o\">&gt;<\/span>\r\n    <span class=\"c\">&lt;!--<\/span> <span class=\"nx\">This<\/span> <span class=\"nx\">element<\/span><span class=\"dl\">'<\/span><span class=\"s1\">s contents will be replaced with your component. --&gt;\r\n&lt;\/div&gt;\r\n<\/span><\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u30eb\u30fc\u30c8DOM\u30ce\u30fc\u30c9\u306e\u5185\u5bb9\u3092\u66f8\u304d\u63db\u3048\u308b<\/span>\r\n<span class=\"nx\">ReactDOM<\/span><span class=\"p\">.<\/span><span class=\"nf\">render<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"nx\">world<\/span><span class=\"o\">!&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">,\r\n<\/span>  <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">root<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>CodePen\u7684\u539f\u751f\u4e2d\u6587\u89e3\u91ca\uff1a\u4ee3\u7801\u7b14\u7f51<\/p>\n<h2>React\u7ec4\u4ef6<\/h2>\n<p>\u5c06\u8fd4\u56deReact\u5143\u7d20\u7684\u51fd\u6570\u79f0\u4e3aReact\u7ec4\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">Welcome<\/span><span class=\"p\">(<\/span><span class=\"nx\">props<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"nx\">props<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span><span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528ES6\u7684\u7c7b\u8fdb\u884c\u7f16\u5199\u65b9\u5f0f<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Welcome<\/span> <span class=\"kd\">extends<\/span> <span class=\"nc\">React<\/span><span class=\"p\">.<\/span><span class=\"nx\">Component<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nf\">render<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">props<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span>  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728JSX\u4e2d\u5b58\u5728\u7528\u6237\u5b9a\u4e49\u7684\u6807\u7b7e\uff0c\u90a3\u4e48\u8be5\u6807\u7b7e\u4e0e\u540c\u540d\u7684React\u7ec4\u4ef6\u5c06\u88ab\u8c03\u7528\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cprops\u7684\u5185\u5bb9\u5c06\u53d8\u4e3aJSX\u6807\u7b7e\u5185\u7684\u5c5e\u6027\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">Welcome<\/span><span class=\"p\">(<\/span><span class=\"nx\">props<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"nx\">props<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span><span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">element<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">Welcome<\/span> <span class=\"nx\">name<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">Sara<\/span><span class=\"dl\">\"<\/span> <span class=\"o\">\/&gt;<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nx\">ReactDOM<\/span><span class=\"p\">.<\/span><span class=\"nf\">render<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"nx\">element<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">root<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>CodePen \u7a0b\u5e8f<\/p>\n<p>\u53ef\u4ee5\u4ece\u4e00\u4e2a\u7ec4\u4ef6\u8c03\u7528\u53e6\u4e00\u4e2a\u7ec4\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">Welcome<\/span><span class=\"p\">(<\/span><span class=\"nx\">props<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"o\">&lt;<\/span><span class=\"nx\">h1<\/span><span class=\"o\">&gt;<\/span><span class=\"nx\">Hello<\/span><span class=\"p\">,<\/span> <span class=\"p\">{<\/span><span class=\"nx\">props<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">}<\/span><span class=\"o\">&lt;<\/span><span class=\"sr\">\/h1&gt;<\/span><span class=\"err\">;\r\n<\/span><span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">function<\/span> <span class=\"nf\">App<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return <\/span><span class=\"p\">(<\/span>\r\n    <span class=\"o\">&lt;<\/span><span class=\"nx\">div<\/span><span class=\"o\">&gt;<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">Welcome<\/span> <span class=\"nx\">name<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">Sara<\/span><span class=\"dl\">\"<\/span> <span class=\"o\">\/&gt;<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">Welcome<\/span> <span class=\"nx\">name<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">Cahal<\/span><span class=\"dl\">\"<\/span> <span class=\"o\">\/&gt;<\/span>\r\n      <span class=\"o\">&lt;<\/span><span class=\"nx\">Welcome<\/span> <span class=\"nx\">name<\/span><span class=\"o\">=<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">Edite<\/span><span class=\"dl\">\"<\/span> <span class=\"o\">\/&gt;<\/span>\r\n    <span class=\"o\">&lt;<\/span><span class=\"sr\">\/div<\/span><span class=\"err\">&gt;\r\n<\/span>  <span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nx\">ReactDOM<\/span><span class=\"p\">.<\/span><span class=\"nf\">render<\/span><span class=\"p\">(<\/span>\r\n  <span class=\"o\">&lt;<\/span><span class=\"nx\">App<\/span> <span class=\"o\">\/&gt;<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nb\">document<\/span><span class=\"p\">.<\/span><span class=\"nf\">getElementById<\/span><span class=\"p\">(<\/span><span class=\"dl\">'<\/span><span class=\"s1\">root<\/span><span class=\"dl\">'<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>CodePen\uff1a<br \/>\n\u4ee3\u7801\u7b14<\/p>\n<p>\u5982\u679cUI\u4e2d\u6709\u7ecf\u5e38\u4f7f\u7528\u7684\u90e8\u4ef6\uff08\u4f8b\u5982\u6309\u94ae\u7b49\uff09\u6216\u590d\u6742\u7684\u90e8\u4ef6\uff08\u4f8b\u5982\u8bc4\u8bba\u3001\u52a8\u6001\u7b49\uff09\uff0c\u5c06\u5176\u4f5c\u4e3a\u4e00\u4e2a\u7ec4\u4ef6\u8fdb\u884c\u5206\u79bb\u662f\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n<p>\u53ea\u9700\u8981\u4e00\u79cd\u9009\u9879\uff1a\u76d8\u70b9<\/p>\n<p>\u6ce8\u610f\u4e8b\u9879\uff1a\u8bf7\u52ff\u4fee\u6539\u7ec4\u4ef6\u4e2d\u7684props\u503c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">sum<\/span><span class=\"p\">(<\/span><span class=\"nx\">a<\/span><span class=\"p\">,<\/span> <span class=\"nx\">b<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">return<\/span> <span class=\"nx\">a<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">b<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0d\u53ef\u4ee5<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">function<\/span> <span class=\"nf\">withdraw<\/span><span class=\"p\">(<\/span><span class=\"nx\">account<\/span><span class=\"p\">,<\/span> <span class=\"nx\">amount<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">account<\/span><span class=\"p\">.<\/span><span class=\"nx\">total<\/span> <span class=\"o\">-=<\/span> <span class=\"nx\">amount<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u4e00\u4e2a\u7b80\u77ed\u7684\u603b\u7ed3\u3002 JSX &nbsp; Rendering Elements &nbsp; Compone [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38500","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>\u5728React\u5b98\u65b9\u6559\u7a0b\u4e2d\u5b66\u5230\u7684\u7b14\u8bb0\uff08JSX\u3001React\u5143\u7d20\u3001React\u7ec4\u4ef6\uff09 - 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\/\u5728react\u5b98\u65b9\u6559\u7a0b\u4e2d\u5b66\u5230\u7684\u7b14\u8bb0\uff08jsx\u3001react\u5143\u7d20\u3001react\u7ec4\u4ef6\uff09\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728React\u5b98\u65b9\u6559\u7a0b\u4e2d\u5b66\u5230\u7684\u7b14\u8bb0\uff08JSX\u3001React\u5143\u7d20\u3001React\u7ec4\u4ef6\uff09\" \/>\n<meta property=\"og:description\" content=\"\u8fd9\u662f\u4e00\u4e2a\u7b80\u77ed\u7684\u603b\u7ed3\u3002 JSX &nbsp; Rendering Elements &nbsp; Compone [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728react\u5b98\u65b9\u6559\u7a0b\u4e2d\u5b66\u5230\u7684\u7b14\u8bb0\uff08jsx\u3001react\u5143\u7d20\u3001react\u7ec4\u4ef6\uff09\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-11T17:04:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T12:40:23+00:00\" \/>\n<meta name=\"author\" content=\"\u79d1, \u9896\" \/>\n<meta name=\"twitter:card\" 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