{"id":5730,"date":"2022-03-20T19:50:13","date_gmt":"2022-03-20T11:50:13","guid":{"rendered":"http:\/\/39.106.39.94\/?p=5730"},"modified":"2022-04-06T19:50:58","modified_gmt":"2022-04-06T11:50:58","slug":"%e4%ba%8b%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/lilichao.com\/?p=5730","title":{"rendered":"\u4e8b\u4ef6"},"content":{"rendered":"\n

React\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u7c7b\u4f3c\u4e8e\u5728HTML\u6807\u7b7e\u4e2d\u901a\u8fc7\u5c5e\u6027\u6765\u8bbe\u7f6e\u4e8b\u4ef6\uff0c\u50cf\u662f\u8fd9\u6837\uff1a<\/p>\n\n\n\n

<button onclick=\"alert('\u4f60\u70b9\u6211\u5e72\u561b');\">\u70b9\u6211\u4e00\u4e0b<\/button><\/pre>\n\n\n\n
\u8fd9\u662f\u4f20\u7edfDOM\u4e2d\u7ed1\u5b9a\u4e8b\u4ef6\u7684\u65b9\u5f0f\u4e4b\u4e00\uff0conclick\u5168\u90fd\u5c0f\u5199\u662f\u4e8b\u4ef6\u7684\u540d\u5b57\uff0c\u5b83\u7684\u503c\u662f\u4e00\u7ec4JS\u4ee3\u7801\uff0c\u5f53\u4e8b\u4ef6\u89e6\u53d1\u65f6\uff0cJS\u4ee3\u7801\u4fbf\u4f1a\u6267\u884c\u3002\u8bb0\u4f4f\u8fd9\u4e00\u70b9\uff0c\u4f20\u7edfDOM\u4e2d\u4e8b\u4ef6\u5c5e\u6027\u7684JS\u4ee3\u7801\u5728\u4e8b\u4ef6\u89e6\u53d1\u65f6\u6267\u884c\uff01<\/p>\n\n\n\n
React\u4e2d\u7684\u4e8b\u4ef6\u7ed1\u5b9a\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n
const clickHandler = ()=> {\n    alert('\u4f60\u70b9\u6211\u5e72\u561b');\n};\nconst ele = <button onClick={clickHandler}>\u6211\u662f\u4e00\u4e2a\u6309\u94ae<\/button>;<\/pre>\n\n\n\n
\u4e24\u8005\u957f\u5f97\u5f88\u50cf\uff0c\u4f46\u662f\u4e5f\u6709\u5f88\u5927\u7684\u533a\u522b\uff1a<\/p>\n\n\n\n
  1. React\u4e8b\u4ef6\u4f7f\u7528\u7684\u662f\u9a7c\u5cf0\u547d\u540d\u6cd5<\/li>
  2. \u4e8b\u4ef6\u5c5e\u6027\u503c\u9700\u8981\u7684\u662f\u4e00\u4e2a\u51fd\u6570\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u8c03\u7528\u51fd\u6570<\/li><\/ol>\n\n\n\n
    React\u4e8b\u4ef6\u540d\u4f7f\u7528\u7684\u662f\u9a7c\u5cf0\u547d\u540d\u6cd5\u800c\u4e0d\u662f\u7eaf\u5c0f\u5199\u4e8b\u4ef6\uff0c\u6240\u4ee5\u5728React\u4e2d\u8bbe\u7f6e\u4e8b\u4ef6\u65f6onclick\u5e94\u8be5\u5199\u4e3aonClick\uff0c\u5176\u4ed6\u7684\u4e8b\u4ef6\u4e5f\u662f\u5982\u6b64\u3002<\/p>\n\n\n\n
    React\u4e8b\u4ef6\u7684\u5c5e\u6027\u503c\u9700\u8981\u7684\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u51fd\u6570\u4f1a\u5728\u89e6\u53d1\u65f6\u6267\u884c\uff0c\u6240\u4ee5\u4e0a\u4f8b\u4e2d\u6211\u5199\u7684clickHandler\u662f\u6ca1\u6709\u52a0()\u7684\uff0c\u5982\u679c\u52a0\u4e86()\u51fd\u6570\u4f1a\u5728\u8d4b\u503c\u65f6\u7acb\u523b\u6267\u884c\uff0c\u800c\u8d4b\u503c\u7ed9onClick\u4e8b\u4ef6\u7684\u5c06\u662f\u51fd\u6570\u7684\u8fd4\u56de\u503cundefined\uff0c\u8fd9\u5c06\u5bfc\u81f4\u4e8b\u4ef6\u7684\u8bbe\u7f6e\u5931\u6548\uff0c\u8fd9\u4e00\u70b9\u4f60\u53ef\u4ee5\u81ea\u5df1\u8bd5\u8bd5\u770b\u3002<\/p>\n\n\n\n
    \u4e8b\u4ef6\u5bf9\u8c61<\/h2>\n\n\n\n
    React\u4e8b\u4ef6\u4e5f\u4f1a\u4ea7\u751f\u4e8b\u4ef6\u5bf9\u8c61\uff0c\u5728\u4e8b\u4ef6\u7684\u54cd\u5e94\u51fd\u6570\u4e2d\u53ef\u4ee5\u5b9a\u4e49\u7b2c\u4e00\u4e2a\u53c2\u6570\u6765\u83b7\u53d6\u4e8b\u4ef6\u5bf9\u8c61\uff1a<\/p>\n\n\n\n
    const clickHandler = (e)=> {
        \/\/ e \u8868\u793a\u4e8b\u4ef6\u5bf9\u8c61
        console.log(e);
        alert('\u4f60\u70b9\u6211\u5e72\u561b');
    };<\/pre>\n\n\n\n
    \u8fd9\u4e2a\u4e8b\u4ef6\u5bf9\u8c61\u662f\u7531React\u6240\u521b\u5efa\u7684\u4e8b\u4ef6\u5bf9\u8c61\uff0c\u548c\u539f\u751f\u7684\u4e8b\u4ef6\u5bf9\u8c61\u7c7b\u4f3c\uff0c\u4f46\u4f7f\u7528\u5b83\u6211\u4eec\u4e0d\u9700\u8981\u62c5\u5fc3\u517c\u5bb9\u7684\u95ee\u9898\u3002\u4f7f\u7528\u4e8b\u4ef6\u5bf9\u8c61\u53ef\u4ee5\u5b8c\u6210\u50cf\u539f\u751fDOM\u4e2d\u4e8b\u4ef6\u5bf9\u8c61\u7684\u5404\u79cd\u64cd\u4f5c\uff0c\u6bd4\u5982\u53d6\u6d88\u9ed8\u8ba4\u884c\u4e3a\u548c\u53d6\u6d88\u4e8b\u4ef6\u7684\u5192\u6ce1\uff1a<\/p>\n\n\n\n
    const clickHandler = (e)=> {
        e.preventDefault(); \/\/ \u53d6\u6d88\u9ed8\u8ba4\u884c\u4e3a
        e.stopPropagation(); \/\/ \u53d6\u6d88\u4e8b\u4ef6\u7684\u4f20\u64ad
        \/\/ \u5176\u4ed6\u4ee3\u7801
    };<\/pre>\n","protected":false},"excerpt":{"rendered":"
    React\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u7c7b\u4f3c\u4e8e\u5728HTML\u6807\u7b7e\u4e2d\u901a\u8fc7\u5c5e\u6027\u6765\u8bbe\u7f6e\u4e8b\u4ef6\uff0c\u50cf\u662f\u8fd9\u6837\uff1a <button onclic […]<\/p>\n","protected":false},"author":1,"featured_media":5732,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[198],"tags":[200,202,199],"_links":{"self":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5730"}],"collection":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5730"}],"version-history":[{"count":2,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5730\/revisions"}],"predecessor-version":[{"id":5733,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/posts\/5730\/revisions\/5733"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=\/wp\/v2\/media\/5732"}],"wp:attachment":[{"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lilichao.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}