{"id":53432,"date":"2024-12-03T14:49:04","date_gmt":"2024-12-03T06:49:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53432\/"},"modified":"2024-12-03T14:49:04","modified_gmt":"2024-12-03T06:49:04","slug":"javascript%e4%b8%ad%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a1%ae%e6%98%be%e7%a4%ba%e4%bb%8epromise%e8%8e%b7%e5%8f%96%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53432\/","title":{"rendered":"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241130\/1732948786674ab332ac8f0.jpg\" class=\"aligncenter\" title=\"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u63d2\u56fe\" alt=\"JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u663e\u793a\u4ece promise \u4e2d\u83b7\u53d6\u7684\u5b57\u7b26\u4e32<\/strong><\/p>\n<p>\u5728 javascript \u4e2d\uff0c\u5f53\u4f60\u4ece async \u51fd\u6570\uff08\u4f8b\u5982 intotext\uff09\u4e2d\u83b7\u53d6\u503c\u65f6\uff0c\u4f60\u4f1a\u5f97\u5230\u4e00\u4e2a promise\u3002promise \u7684\u503c\u5728\u5c06\u6765\u53ef\u7528\uff0c\u4f46\u5728\u5176\u53ef\u7528\u4e4b\u524d\u4f1a\u663e\u793a\u4e3a &#8220;[object promise]\u201d\u3002<\/p>\n<p>\u8981\u663e\u793a\u5b57\u7b26\u4e32\uff0c\u4f60\u9700\u8981\u4f7f\u7528 promise \u7684 .then() \u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4f1a\u5728 promise \u89e3\u51b3\u540e\u6267\u884c\u6307\u5b9a\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u4f60\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>intoText(ids).then((txt) =&gt; {\n  xxx.xxx = txt; \/\/ \u8fd9\u91cc\u5c55\u793a\u4f60\u7684\u5b57\u7b26\u4e32\n});<\/pre>\n<p>.then() \u65b9\u6cd5\u7684\u4e00\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5b83\u4f1a\u5728 promise \u89e3\u51b3\u540e\u6267\u884c\u3002\u8be5\u51fd\u6570\u4f1a\u63a5\u6536 promise \u7684 resolved \u503c\u4f5c\u4e3a\u53c2\u6570\u3002<\/p>\n<p>\u5728\u4f60\u7684\u4ee3\u7801\u4e2d\uff0c\u4f60\u5c06 resolved \u503c\u5b58\u50a8\u5728 txt \u53d8\u91cf\u4e2d\uff0c\u7136\u540e\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u663e\u793a\u5b57\u7b26\u4e32\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   ThinkPHP\u4e2d\u5982\u4f55\u8fdb\u884c\u8868\u5173\u8054\u67e5\u8be2\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9&#8230;\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01 \u5982\u4f55\u663e\u793a\u4ece promise \u4e2d\u83b7\u53d6\u7684\u5b57\u7b26\u4e32 \u5728 javascript \u4e2d\uff0c\u5f53\u4f60\u4ece async \u51fd\u6570\uff08\u4f8b\u5982 intotext\uff09\u4e2d\u83b7\u53d6\u503c\u65f6\uff0c\u4f60\u4f1a\u5f97\u5230\u4e00\u4e2a promise\u3002promise \u7684\u503c\u5728\u5c06\u6765\u53ef\u7528\uff0c\u4f46\u5728\u5176\u53ef\u7528\u4e4b\u524d\u4f1a\u663e\u793a\u4e3a &#8220;[object promise]\u201d\u3002 \u8981\u663e\u793a\u5b57\u7b26\u4e32\uff0c\u4f60\u9700\u8981\u4f7f\u7528 promise \u7684 .then() \u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4f1a\u5728 promise \u89e3\u51b3\u540e\u6267\u884c\u6307\u5b9a\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u4f60\u7684\u4ee3\u7801\uff1a intoText(ids).then((txt) =&gt; { xxx.xxx = txt; \/\/ \u8fd9\u91cc\u5c55\u793a\u4f60\u7684\u5b57\u7b26\u4e32 }); .then() \u65b9\u6cd5\u7684\u4e00\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u5b83\u4f1a\u5728 promise \u89e3\u51b3\u540e\u6267\u884c\u3002\u8be5\u51fd\u6570\u4f1a\u63a5\u6536 promise \u7684 resolved \u503c\u4f5c\u4e3a\u53c2\u6570\u3002 \u5728\u4f60\u7684\u4ee3\u7801\u4e2d\uff0c\u4f60\u5c06 resolved \u503c\u5b58\u50a8\u5728 txt \u53d8\u91cf\u4e2d\uff0c\u7136\u540e\u4f60\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u663e\u793a\u5b57\u7b26\u4e32\u3002 \u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJavaScript\u4e2d\u5982\u4f55\u6b63\u786e\u663e\u793a\u4ecePromise\u83b7\u53d6\u7684\u5b57\u7b26\u4e32\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01 ThinkPHP\u4e2d\u5982\u4f55\u8fdb\u884c\u8868\u5173\u8054\u67e5\u8be2\uff1f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53432","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53432","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53432"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53432\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}