{"id":42181,"date":"2025-06-06T18:25:50","date_gmt":"2025-06-06T10:25:50","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/42181.html"},"modified":"2025-06-06T18:25:50","modified_gmt":"2025-06-06T10:25:50","slug":"c%e7%b1%bb%e8%ae%be%e8%ae%a1%e6%96%b0%e6%80%9d%e8%b7%af%ef%bc%9a%e5%80%9f%e9%89%b4promise%e9%93%be%e5%bc%8f%e8%b0%83%e7%94%a8%e7%9a%84%e5%b0%81%e8%a3%85%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/42181.html","title":{"rendered":"C++\u7c7b\u8bbe\u8ba1\u65b0\u601d\u8def\uff1a\u501f\u9274Promise\u94fe\u5f0f\u8c03\u7528\u7684\u5c01\u88c5\u6a21\u5f0f"},"content":{"rendered":"<h4>C&#043;&#043;\u7c7b\u8bbe\u8ba1\u65b0\u601d\u8def&#xff1a;\u501f\u9274Promise\u94fe\u5f0f\u8c03\u7528\u7684\u5c01\u88c5\u6a21\u5f0f<\/h4>\n<p>\u5728C&#043;&#043;\u7f16\u7a0b\u4e2d&#xff0c;\u7c7b\u7684\u8bbe\u8ba1\u6a21\u5f0f\u4e00\u76f4\u662f\u5f00\u53d1\u8005\u5173\u6ce8\u7684\u91cd\u70b9\u3002\u826f\u597d\u7684\u7c7b\u8bbe\u8ba1\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027&#xff0c;\u8fd8\u80fd\u6709\u6548\u964d\u4f4e\u7cfb\u7edf\u7684\u8026\u5408\u5ea6\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u79cd\u65b0\u578b\u7684C&#043;&#043;\u7c7b\u8bbe\u8ba1\u89c4\u8303&#xff0c;\u5b83\u501f\u9274\u4e86JavaScript\u4e2dPromise\u94fe\u5f0f\u8c03\u7528\u7684\u601d\u60f3&#xff0c;\u901a\u8fc7\u6570\u636e\u5c01\u88c5\u548c\u6d41\u5f0f\u63a5\u53e3\u5b9e\u73b0\u66f4\u4f18\u96c5\u7684\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n<h5>\u4f20\u7edf\u7c7b\u8bbe\u8ba1\u7684\u5c40\u9650\u6027<\/h5>\n<p>\u5728\u63a2\u8ba8\u65b0\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u524d&#xff0c;\u8ba9\u6211\u4eec\u5148\u56de\u987e\u4e00\u4e0b\u4f20\u7edfC&#043;&#043;\u7c7b\u8bbe\u8ba1\u7684\u5e38\u89c1\u65b9\u5f0f&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TraditionalClass<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num1<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> num2<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token function\">TraditionalClass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> n1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> n2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">num1<\/span><span class=\"token punctuation\">(<\/span>n1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">num2<\/span><span class=\"token punctuation\">(<\/span>n2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">int<\/span> <span class=\"token function\">getNum1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> num1<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> <span class=\"token function\">getNum2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token keyword\">return<\/span> num2<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNum1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> num1 <span class=\"token operator\">&#061;<\/span> value<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNum2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> num2 <span class=\"token operator\">&#061;<\/span> value<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u79cd\u8bbe\u8ba1\u867d\u7136\u7b80\u5355\u76f4\u63a5&#xff0c;\u4f46\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898&#xff1a;<\/p>\n<li>\u5f53\u7c7b\u7684\u79c1\u6709\u6210\u5458\u8f83\u591a\u65f6&#xff0c;\u516c\u5171\u63a5\u53e3\u4f1a\u53d8\u5f97\u5197\u957f<\/li>\n<li>\u6570\u636e\u8bbf\u95ee\u5206\u6563&#xff0c;\u4e0d\u5229\u4e8e\u7edf\u4e00\u7ba1\u7406<\/li>\n<li>\u7f3a\u4e4f\u94fe\u5f0f\u8c03\u7528\u80fd\u529b&#xff0c;\u4ee3\u7801\u4e0d\u591f\u6d41\u7545<\/li>\n<h5>\u65b0\u578b\u7c7b\u8bbe\u8ba1&#xff1a;\u5d4c\u5957\u7ed3\u6784\u4f53\u5c01\u88c5\u6a21\u5f0f<\/h5>\n<p>\u672c\u6587\u4ecb\u7ecd\u7684\u65b0\u578b\u8bbe\u8ba1\u6a21\u5f0f\u901a\u8fc7\u5d4c\u5957\u7ed3\u6784\u4f53\u5c06\u6240\u6709\u79c1\u6709\u6570\u636e\u96c6\u4e2d\u7ba1\u7406&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Myc<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">classData<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> num1<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">int<\/span> num2<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    classData self<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6784\u9020\u51fd\u6570\u521d\u59cb\u5316\u6570\u636e<\/span><br \/>\n    <span class=\"token function\">Myc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token function\">self<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u8fd4\u56de\u6570\u636e\u526f\u672c<\/span><br \/>\n    classData <span class=\"token function\">getData<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> self<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u53ef\u9009&#xff1a;\u63d0\u4f9b\u94fe\u5f0f\u8bbe\u7f6e\u65b9\u6cd5<\/span><br \/>\n    Myc<span class=\"token operator\">&amp;<\/span> <span class=\"token function\">setNum1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> self<span class=\"token punctuation\">.<\/span>num1 <span class=\"token operator\">&#061;<\/span> value<span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token operator\">*<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n    Myc<span class=\"token operator\">&amp;<\/span> <span class=\"token function\">setNum2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> value<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> self<span class=\"token punctuation\">.<\/span>num2 <span class=\"token operator\">&#061;<\/span> value<span class=\"token punctuation\">;<\/span> <span class=\"token keyword\">return<\/span> <span class=\"token operator\">*<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token 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class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;api\/data&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">response<\/span> <span class=\"token operator\">&#061;&gt;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">data<\/span> <span class=\"token operator\">&#061;&gt;<\/span> console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5728C&#043;&#043;\u4e2d&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7c7b\u4f3c\u7684\u601d\u60f3\u5b9e\u73b0\u6d41\u7545\u7684\u4ee3\u7801\u8c03\u7528&#xff1a;<\/p>\n<p><span class=\"token function\">Myc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setNum1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">setNum2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getData<\/span><span 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