{"id":52375,"date":"2024-12-03T11:42:21","date_gmt":"2024-12-03T03:42:21","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52375\/"},"modified":"2024-12-03T11:42:21","modified_gmt":"2024-12-03T03:42:21","slug":"javascript-%e5%8d%95%e5%87%bb%e4%ba%8b%e4%bb%b6%e6%97%a0%e6%b3%95%e8%a7%a6%e5%8f%91%ef%bc%8c%e4%b8%ba%e4%bb%80%e4%b9%88%e6%8f%90%e7%a4%ba-undefined-%e9%94%99%e8%af%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52375\/","title":{"rendered":"JavaScript \u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u4e3a\u4ec0\u4e48\u63d0\u793a undefined \u9519\u8bef\uff1f"},"content":{"rendered":"

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

JavaScript \u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u4e3a\u4ec0\u4e48\u63d0\u793a undefined \u9519\u8bef\uff1f<\/h1>\n

\u6587\u7ae0<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aJavaScript \u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u4e3a\u4ec0\u4e48\u63d0\u793a undefined \u9519\u8bef\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

\"JavaScript<\/p>\n

js \u5355\u51fb\u4e8b\u4ef6\u62a5\u9519<\/strong><\/p>\n

\u5728\u7f16\u5199 js \u4ee3\u7801\u65f6\uff0c\u9047\u5230\u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\u7684\u60c5\u51b5\uff0c\u53ef\u80fd\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898\uff1a<\/p>\n

\u5982\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

(function(){\n    var btn = document.getelementbyid(\"btn\");\n    function getname(name){\n        alert(name);\n    }\n    btn.onclick = getname(\"123\");\n})();<\/pre>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u63d0\u793a undefined \u62a5\u9519\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 getname(“123”) \u6267\u884c\u65f6\uff0c\u5e76\u6ca1\u6709\u5c06\u8fd4\u56de\u503c\u8d4b\u503c\u7ed9 btn.onclick\uff0c\u800c\u662f\u76f4\u63a5\u6267\u884c\u4e86\u8be5\u51fd\u6570\u3002<\/p>\n
getname(“123”) \u6267\u884c\u540e\uff0c\u8fd4\u56de\u4e86 undefined\uff0c\u800c btn.onclick = undefined \u81ea\u7136\u5c31\u4e0d\u4f1a\u5f39\u51fa\u4efb\u4f55\u5185\u5bb9\u3002<\/p>\n
\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u5c06 getname(“123”) \u7684\u6267\u884c\u7ed3\u679c\u8d4b\u503c\u7ed9 btn.onclick\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
(function(){\n    var btn = document.getElementById(\"btn\");\n    function getName(name){\n        alert(name);\n    }\n    btn.onclick = getName;\n})();<\/pre>\n
\u7ecf\u8fc7\u4fee\u6539\u540e\uff0c\u5355\u51fb\u6309\u94ae\u5c06\u6b63\u5e38\u89e6\u53d1\u4e8b\u4ef6\u5e76\u5f39\u51fa “123” \u7684\u63d0\u793a\u6846\u3002<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n
\n
<\/dt>\n
\n   win11\u5145\u7535\u4e0a\u965080\u600e\u4e48\u8c03\u56de\u6765 win11\u5145\u7535\u4e0a\u965080\u8c03\u56de\u6765\u6559\u7a0b\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
JavaScript \u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u4e3a\u4ec0\u4e48\u63d0\u793a undefined \u9519\u8bef\uff1f \u6587\u7ae0\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aJavaScript \u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u4e3a\u4ec0\u4e48\u63d0\u793a undefined \u9519\u8bef\uff1f\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01 js \u5355\u51fb\u4e8b\u4ef6\u62a5\u9519 \u5728\u7f16\u5199 js \u4ee3\u7801\u65f6\uff0c\u9047\u5230\u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\u7684\u60c5\u51b5\uff0c\u53ef\u80fd\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898\uff1a \u5982\u4e0b\u4ee3\u7801\u793a\u4f8b\uff1a (function(){ var btn = document.getelementbyid(“btn”); function getname(name){ alert(name); } btn.onclick = getname(“123″); })(); \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5355\u51fb\u4e8b\u4ef6\u65e0\u6cd5\u89e6\u53d1\uff0c\u63d0\u793a undefined \u62a5\u9519\u3002\u8fd9\u662f\u56e0\u4e3a\u5728 getname(“123”) \u6267\u884c\u65f6\uff0c\u5e76\u6ca1\u6709\u5c06\u8fd4\u56de\u503c\u8d4b\u503c\u7ed9 btn.onclick\uff0c\u800c\u662f\u76f4\u63a5\u6267\u884c\u4e86\u8be5\u51fd\u6570\u3002 getname(“123”) \u6267\u884c\u540e\uff0c\u8fd4\u56de\u4e86 undefined\uff0c\u800c btn.onclick = undefined \u81ea\u7136\u5c31\u4e0d\u4f1a\u5f39\u51fa\u4efb\u4f55\u5185\u5bb9\u3002 \u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u5c06 getname(“123”) \u7684\u6267\u884c\u7ed3\u679c\u8d4b\u503c\u7ed9 btn.onclick\uff0c\u5982\u4e0b\u6240\u793a\uff1a (function(){ var btn = document.getElementById(“btn”); function getName(name){ alert(name); } btn.onclick = […]<\/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-52375","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52375","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=52375"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52375\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}