{"id":1744,"date":"2024-11-10T16:59:43","date_gmt":"2024-11-10T08:59:43","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1744\/"},"modified":"2024-11-10T16:59:43","modified_gmt":"2024-11-10T08:59:43","slug":"js%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e8%8e%b7%e5%8f%96%e6%95%b0%e6%8d%ae%e5%87%ba%e7%8e%b0undefined%ef%bc%9a%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1744\/","title":{"rendered":"JS\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u51fa\u73b0\u201cundefined\u201d\uff1a\u5982\u4f55\u907f\u514d\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173054893294720.jpg\" class=\"aligncenter\" title=\"JS\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u51fa\u73b0\u201cundefined\u201d\uff1a\u5982\u4f55\u907f\u514d\uff1f\u63d2\u56fe\" alt=\"JS\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u51fa\u73b0\u201cundefined\u201d\uff1a\u5982\u4f55\u907f\u514d\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>js\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u5230\u7684\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u90fd\u6709\u4e2aundefined\u662f\u600e\u4e48\u56de\u4e8b\uff1f<\/strong><\/p>\n<p>\u5728\u4f7f\u7528js\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5728\u63a7\u4ef6\u6570\u636e\u524d\u9762\u6709\u4e00\u4e2a&#8221;undefined&#8221;\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u4f7f\u7528\u5faa\u73af\u9010\u884c\u8bfb\u53d6\u63a7\u4ef6\u6570\u636e\u65f6\uff0c\u672a\u5bf9\u6bcf\u4e2a\u884c\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\uff1a<\/p>\n<pre>var lists = [];\n$(\"#Model\").children(\"div\").each(function (i) {\n  lists[i] = [];\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<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u901a\u8fc7\u5bf9\u6bcf\u4e2a\u884c\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u907f\u514d\u4e86\u524d\u9762\u51fa\u73b0&#8221;undefined&#8221;\u7684\u60c5\u51b5\uff0c\u4fdd\u8bc1\u4e86\u83b7\u53d6\u7684\u6570\u636e\u6b63\u786e\u65e0\u8bef\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJS\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u6570\u636e\u51fa\u73b0\u201cundefined\u201d\uff1a\u5982\u4f55\u907f\u514d\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>js\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u83b7\u53d6\u5230\u7684\u6570\u636e\u63a7\u4ef6\u6570\u636e\u524d\u9762\u90fd\u6709\u4e2aundefined\u662f\u600e\u4e48\u56de\u4e8b\uff1f \u5728\u4f7f\u7528js\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u5728\u63a7\u4ef6\u6570\u636e\u524d\u9762\u6709\u4e00\u4e2a&#8221;undefined&#8221;\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u4f7f\u7528\u5faa\u73af\u9010\u884c\u8bfb\u53d6\u63a7\u4ef6\u6570\u636e\u65f6\uff0c\u672a\u5bf9\u6bcf\u4e2a\u884c\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\uff1a var lists = []; 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