{"id":52292,"date":"2024-12-03T08:41:26","date_gmt":"2024-12-03T00:41:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52292\/"},"modified":"2024-12-03T08:41:26","modified_gmt":"2024-12-03T00:41:26","slug":"javascript-%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e8%8e%b7%e5%8f%96%e6%95%b0%e6%8d%ae%e6%8e%a7%e4%bb%b6%e6%95%b0%e6%8d%ae%e5%87%ba%e7%8e%b0-undefined-%e7%9a%84%e5%8e%9f%e5%9b%a0%e6%98%af%e4%bb%80-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52292\/","title":{"rendered":"JavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

JavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h1>\n

\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aJavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

\"JavaScript<\/p>\n

\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u7684\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u6709 undefined \u7684\u539f\u56e0<\/strong><\/p>\n

\u5728 javascript \u4e2d\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u5e76\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u65f6\uff0c\u6709\u65f6\u4f1a\u9047\u5230\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\uff1a\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u4f1a\u83ab\u540d\u5176\u5999\u51fa\u73b0\u4e00\u4e2a undefined\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e00\u4e2a\u6f5c\u5728\u7684\u9519\u8bef\u5f15\u8d77\u7684\uff0c\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff1a<\/p>\n

var lists = [];\n$(\"#Model\").children(\"div\").each(function (i) {\n    lists[i] = []; \/\/ \u5c06 lists[i] \u521d\u59cb\u5316\u4e3a\u4e00\u4e2a\u7a7a\u6570\u7ec4\n    lists[i][0] = $(\"#One\").val();\n    lists[i][1] = $(\"#Two\").val();\n    lists[i][2] = $(\"#Thtee\").val();\n    lists[i][3] = $(\"#Four\").val();\n});<\/pre>\n
\u5728\u8fd9\u4e2a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u786e\u4fdd lists[i] \u5728\u586b\u5145\u6570\u636e\u4e4b\u524d\u88ab\u521d\u59cb\u5316\u4e3a\u7a7a\u6570\u7ec4\u3002\u8fd9\u5c06\u9632\u6b62\u5728\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6570\u636e\u4e4b\u524d\u4e3a\u5176\u8d4b\u503c undefined\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u8fd8\u7528\u6b63\u786e\u7684\u63a7\u4ef6 id\uff08\u5373 one\u3001two\u3001thtee \u548c four\uff09\u66ff\u6362\u4e86 one<span style=”color: #000000″>\u3001two<\/span><span style=”color: #000000″>\u3001thtee \u4ee5\u53ca four<\/span><span style=”color: #000000″>\uff0c\u8fd9\u4e9b\u63a7\u4ef6 id \u53ef\u80fd\u5728\u60a8\u7684\u539f\u59cb\u4ee3\u7801\u4e2d\u5199\u9519\u4e86\u3002<\/span><\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300aJavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n
\n
<\/dt>\n
\n   \u6ca1\u6709\u6587\u6863\u7684 npm \u5305\uff0c\u5982\u4f55\u6b63\u786e\u8c03\u7528\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
JavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f \u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aJavaScript \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u51fa\u73b0 undefined \u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f\u300b\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~ \u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u7684\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u6709 undefined \u7684\u539f\u56e0 \u5728 javascript \u4e2d\u521b\u5efa\u4e8c\u7ef4\u6570\u7ec4\u5e76\u83b7\u53d6\u6570\u636e\u63a7\u4ef6\u6570\u636e\u65f6\uff0c\u6709\u65f6\u4f1a\u9047\u5230\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\uff1a\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u4f1a\u83ab\u540d\u5176\u5999\u51fa\u73b0\u4e00\u4e2a undefined\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e00\u4e2a\u6f5c\u5728\u7684\u9519\u8bef\u5f15\u8d77\u7684\uff0c\u4ee5\u4e0b\u662f\u5982\u4f55\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff1a var lists = []; $(“#Model”).children(“div”).each(function (i) { lists[i] = []; \/\/ \u5c06 lists[i] \u521d\u59cb\u5316\u4e3a\u4e00\u4e2a\u7a7a\u6570\u7ec4 lists[i][0] = $(“#One”).val(); lists[i][1] = $(“#Two”).val(); lists[i][2] = $(“#Thtee”).val(); lists[i][3] = $(“#Four”).val(); }); \u5728\u8fd9\u4e2a\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u786e\u4fdd lists[i] \u5728\u586b\u5145\u6570\u636e\u4e4b\u524d\u88ab\u521d\u59cb\u5316\u4e3a\u7a7a\u6570\u7ec4\u3002\u8fd9\u5c06\u9632\u6b62\u5728\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6570\u636e\u4e4b\u524d\u4e3a\u5176\u8d4b\u503c undefined\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u8fd8\u7528\u6b63\u786e\u7684\u63a7\u4ef6 id\uff08\u5373 one\u3001two\u3001thtee \u548c four\uff09\u66ff\u6362\u4e86 one<span style=”color: #000000″>\u3001two<\/span><span style=”color: #000000″>\u3001thtee […]<\/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-52292","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52292","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=52292"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52292\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}