{"id":9949,"date":"2023-11-28T21:21:46","date_gmt":"2023-11-28T13:21:46","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=9949"},"modified":"2023-11-30T19:40:47","modified_gmt":"2023-11-30T11:40:47","slug":"javascript-zhong-shen-me-shi-hui-diao-han-shu","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-shen-me-shi-hui-diao-han-shu\/","title":{"rendered":"JavaScript \u4e2d\u4ec0\u4e48\u662f\u56de\u8c03\u51fd\u6570\uff1f"},"content":{"rendered":"

\u5728JavaScript\u4e2d\uff0c\u56de\u8c03\u51fd\u6570\uff08Callback Function\uff09\u662f\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u53e6\u4e00\u4e2a\u51fd\u6570\uff0c\u5e76\u4e14\u5728\u7279\u5b9a\u4e8b\u4ef6\u53d1\u751f\u6216\u8005\u67d0\u4e2a\u4efb\u52a1\u5b8c\u6210\u540e\u88ab\u8c03\u7528\u6267\u884c\u7684\u51fd\u6570\u3002\u56de\u8c03\u51fd\u6570\u901a\u5e38\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\uff0c\u4e8b\u4ef6\u5904\u7406\uff0c\u6216\u8005\u5728\u5b8c\u6210\u4e00\u9879\u4efb\u52a1\u540e\u6267\u884c\u989d\u5916\u7684\u903b\u8f91\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u56de\u8c03\u51fd\u6570\u7684\u4e00\u4e9b\u5173\u952e\u7279\u5f81\uff1a<\/p>\n

    \n
  1. \n

    \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012<\/strong>\uff1a\u56de\u8c03\u51fd\u6570\u901a\u5e38\u4f5c\u4e3a\u53e6\u4e00\u4e2a\u51fd\u6570\u7684\u53c2\u6570\u4f20\u9012\u8fdb\u53bb\u3002<\/p>\n<\/li>\n

  2. \n

    \u5728\u7279\u5b9a\u4e8b\u4ef6\u6216\u6761\u4ef6\u4e0b\u6267\u884c<\/strong>\uff1a\u8fd9\u4e9b\u51fd\u6570\u5728\u7279\u5b9a\u7684\u4e8b\u4ef6\u53d1\u751f\u6216\u8005\u6761\u4ef6\u6ee1\u8db3\u65f6\u6267\u884c\u3002<\/p>\n<\/li>\n

  3. \n

    \u5904\u7406\u5f02\u6b65\u64cd\u4f5c<\/strong>\uff1a\u5e38\u7528\u4e8e\u5904\u7406\u5f02\u6b65\u4efb\u52a1\uff0c\u4f8b\u5982\u5f02\u6b65\u8bf7\u6c42\u3001\u5b9a\u65f6\u5668\u3001\u4e8b\u4ef6\u76d1\u542c\u7b49\u3002<\/p>\n<\/li>\n

  4. \n

    \u591a\u79cd\u7528\u9014<\/strong>\uff1a\u56de\u8c03\u51fd\u6570\u53ef\u4ee5\u662f\u533f\u540d\u51fd\u6570\u6216\u5177\u540d\u51fd\u6570\uff0c\u7528\u6765\u6267\u884c\u5404\u79cd\u903b\u8f91\uff0c\u4f8b\u5982\u5904\u7406\u6570\u636e\u3001\u66f4\u65b0UI\u7b49\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u6f14\u793a\u4e86\u56de\u8c03\u51fd\u6570\u7684\u7528\u6cd5\uff1a<\/p>\n

    \/\/ \u5f02\u6b65\u51fd\u6570\uff0c\u63a5\u53d7\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\nfunction fetchData(callback) {\n  \/\/ \u6a21\u62df\u5f02\u6b65\u64cd\u4f5c\n  setTimeout(function() {\n    const data = "\u8fd9\u662f\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u7684\u6570\u636e";\n    \/\/ \u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u540e\u8c03\u7528\u56de\u8c03\u51fd\u6570\uff0c\u5e76\u5c06\u6570\u636e\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\n    callback(data);\n  }, 2000); \/\/ \u6a21\u62df2\u79d2\u5ef6\u8fdf\n}\n\n\/\/ \u56de\u8c03\u51fd\u6570\uff0c\u7528\u4e8e\u5904\u7406\u83b7\u53d6\u7684\u6570\u636e\nfunction processData(data) {\n  console.log("\u5904\u7406\u6570\u636e:", data);\n}\n\n\/\/ \u8c03\u7528 fetchData\uff0c\u5e76\u4f20\u9012 processData \u4f5c\u4e3a\u56de\u8c03\u51fd\u6570\nfetchData(processData);\n<\/code><\/pre>\n
    \u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cfetchData<\/code> \u51fd\u6570\u6a21\u62df\u4e86\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u5728\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u540e\u8c03\u7528\u4f20\u5165\u7684\u56de\u8c03\u51fd\u6570\uff0c\u5e76\u5c06\u83b7\u53d6\u7684\u6570\u636e\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5b83\u3002\u5728\u8c03\u7528 fetchData<\/code> \u51fd\u6570\u65f6\uff0c\u6211\u4eec\u5c06 processData<\/code> \u51fd\u6570\u4f5c\u4e3a\u56de\u8c03\u51fd\u6570\u4f20\u9012\u8fdb\u53bb\uff0c\u4ee5\u5904\u7406\u83b7\u53d6\u5230\u7684\u6570\u636e\u3002<\/p>\n
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    \u5728JavaScript\u4e2d\uff0c\u56de\u8c03\u51fd\u6570\uff08Callback Function\uff09\u662f\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u53e6\u4e00\u4e2a\u51fd\u6570\uff0c\u5e76\u4e14\u5728\u7279\u5b9a […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-9949","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9949","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=9949"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9949\/revisions"}],"predecessor-version":[{"id":13689,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9949\/revisions\/13689"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9949"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}