{"id":206,"date":"2007-05-15T23:00:25","date_gmt":"2007-05-15T15:00:25","guid":{"rendered":"http:\/\/www.xujiwei.com\/blog\/?p=206"},"modified":"2010-01-29T21:11:42","modified_gmt":"2010-01-29T13:11:42","slug":"return-value-of-getattribute","status":"publish","type":"post","link":"https:\/\/xujiwei.com\/blog\/2007\/05\/return-value-of-getattribute\/","title":{"rendered":"Firefox\u4e0eIE\u517c\u5bb9\u6027\uff1agetAttribute\u7684\u8fd4\u56de\u503c\u7c7b\u578b"},"content":{"rendered":"<p>\u5728\u6539AJAXRequest\u7684\u8fc7\u7a0b\u4e2d\uff0c\u78b0\u5230\u4e86\u4e2a\u95ee\u9898\uff0c\u5e94\u8be5\u7b97\u662fFirefox\u548cIE\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/p>\n<p>\u63d0\u4ea4\u8868\u5355\u65f6\uff0c\u5f80\u5f80\u9700\u8981\u5148\u5bf9\u8868\u5355\u8fdb\u884c\u9a8c\u8bc1\uff0c\u800c\u8fd9\u4e2a\u9a8c\u8bc1\u7684\u8fc7\u7a0b\u4e00\u822c\u662f\u653e\u5728form\u6807\u7b7e\u7684onsubmit\u5c5e\u6027\u4e2d\u3002<\/p>\n<p>onsubmit\u4e00\u822c\u662f\u7531\u6d4f\u89c8\u5668\u5728form\u7684submit\u52a8\u4f5c\u53d1\u751f\u65f6\u81ea\u52a8\u89e6\u53d1\uff0c\u4f46\u662f\u5982\u679c\u8868\u5355\u7531\u6211\u4eec\u81ea\u5df1\u6765\u63d0\u4ea4\uff0c\u6bd4\u5982\u5728AJAX\u5e94\u7528\u4e2d\uff0c\u5c31\u662f\u7531\u6211\u4eec\u81ea\u5df1\u5199\u7a0b\u5e8f\u5c06\u8868\u5355\u8f6c\u6362\u6210\u8bf7\u6c42\u5b57\u7b26\u4e32\uff0c\u518d\u901a\u8fc7XMLHttpRequest\u53d1\u9001\u5230\u670d\u52a1\u5668\uff0c\u90a3\u4e48\u5982\u679c\u5728\u6b64\u540c\u65f6\u4e0d\u4e22\u6389\u8868\u5355\u9a8c\u8bc1\u7684\u8bdd\uff0c\u5c31\u9700\u8981\u6211\u4eec\u81ea\u5df1\u6765\u83b7\u53d6onsubmit\u5c5e\u6027\uff0c\u5e76\u53bb\u5904\u7406\u5b83\u3002<\/p>\n<p>\u5728\u83b7\u53d6\u5c5e\u6027\u65f6\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u517c\u5bb9\u6027\uff0c\u6211\u7528getAttribute\u6765\u83b7\u53d6\u6807\u7b7e\u7684\u5c5e\u6027\u503c\uff0c\u4f46\u662f\u53d1\u83b7\u53d6\u4e86onsubmit\u5c5e\u6027\u4e4b\u540e\uff0c\u53d1\u73b0\u5728Firefox\u548cIE\u4e2d\u4f7f\u7528getAttribute(\"onsubmit\")\u6240\u8fd4\u56de\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u662f\u4e0d\u540c\u7684\u3002<\/p>\n<p>\u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<p><textarea id=\"HTML_7235\" class=\"textbox\" style=\"width: 90%;\" cols=\"50\" rows=\"8\">\/\/\u00a0code\u00a0by\u00a0xujiwei\u00a0from\u00a0www.xujiwei.cn&lt;br\u00a0\/&gt;&lt;br \/&gt; \/\/\u00a0Firefox\u4e2d\u63d0\u793a\u6846\u5185\u5bb9\u4e3astring\uff0cIE\u4e2d\u4e3afunction&lt;br\u00a0\/&gt;&lt;br \/&gt; &lt;form\u00a0id=\"test\"\u00a0onsubmit=\"return\u00a0validform();\"&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0Name:\u00a0&lt;input\u00a0type=\"text\"\u00a0id=\"name\"\u00a0\/&gt;&lt;br\u00a0\/&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0&lt;input\u00a0type=\"button\"\u00a0onclick=\"validate();\"\u00a0value=\"Validate\"\u00a0\/&gt;&lt;br \/&gt; &lt;\/form&gt;&lt;br \/&gt; &lt;script\u00a0type=\"text\/javascript\"&gt;&lt;br \/&gt; &lt;!--&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validform()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0(document.getElementById(\"name\").value!=\"\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0alert(typeof(document.getElementById(\"test\").getAttribute(\"onsubmit\")));&lt;br \/&gt; \/\/--&gt;&lt;br \/&gt; &lt;\/script&gt;<\/textarea><\/p>\n<p><input class=\"button\" onclick=\"runCode('HTML_7235');\" type=\"button\" value=\"\u8fd0\u884c\u4ee3\u7801\" \/> [Ctrl+A \u5168\u90e8\u9009\u62e9 \u63d0\u793a\uff1a\u4f60\u53ef\u5148\u4fee\u6539\u90e8\u5206\u4ee3\u7801\uff0c\u518d\u6309\u8fd0\u884c]<\/p>\n<p>\u5728Firefox\u4e2d\u4f7f\u7528getAttribute(\"onsubmit\")\u8fd4\u56de\u503c\u7684\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u800c\u5728IE\u4e2d\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u5219\u662ffunction\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u56e0\u6b64\u5982\u679c\u5728IE\u4e2d\u5904\u7406onsubmit\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff1a<\/p>\n<p><textarea id=\"HTML_6048\" class=\"textbox\" style=\"width: 90%;\" cols=\"50\" rows=\"8\">\/\/\u00a0code\u00a0by\u00a0xujiwei\u00a0from\u00a0www.xujiwei.cn&lt;br\u00a0\/&gt;&lt;br \/&gt; \/\/\u00a0\u6ce8\u610f\uff0c\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u53ea\u80fd\u5728IE\u4e2d\u6b63\u5e38\u8fd0\u884c&lt;br\u00a0\/&gt;&lt;br \/&gt; &lt;form\u00a0id=\"test\"\u00a0onsubmit=\"return\u00a0validform();\"&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0Name:\u00a0&lt;input\u00a0type=\"text\"\u00a0id=\"name\"\u00a0\/&gt;&lt;br\u00a0\/&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0&lt;input\u00a0type=\"button\"\u00a0onclick=\"validate();\"\u00a0value=\"Validate\"\u00a0\/&gt;&lt;br \/&gt; &lt;\/form&gt;&lt;br \/&gt; &lt;script\u00a0type=\"text\/javascript\"&gt;&lt;br \/&gt; &lt;!--&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validform()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0(document.getElementById(\"name\").value!=\"\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validate()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0var\u00a0vaf=document.getElementById(\"test\").getAttribute(\"onsubmit\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(vaf())&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"OK\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"Error\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \/\/--&gt;&lt;br \/&gt; &lt;\/script&gt;<\/textarea><\/p>\n<p><input class=\"button\" onclick=\"runCode('HTML_6048');\" type=\"button\" value=\"\u8fd0\u884c\u4ee3\u7801\" \/> [Ctrl+A \u5168\u90e8\u9009\u62e9 \u63d0\u793a\uff1a\u4f60\u53ef\u5148\u4fee\u6539\u90e8\u5206\u4ee3\u7801\uff0c\u518d\u6309\u8fd0\u884c]<\/p>\n<p>\u4f46\u662f\uff0c\u5728Firefox\u4e2d\uff0c\u4f7f\u7528getAttribute(\"onsubmit\")\u8fd4\u56de\u7684\u662f\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u56e0\u6b64\u5c31\u4e0d\u80fd\u76f4\u63a5\u8fd9\u6837\u4f7f\u7528\u4e86\uff0c\u800c\u5e94\u8be5\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u51fd\u6570\u518d\u53bb\u8c03\u7528\uff1a<\/p>\n<p><textarea id=\"HTML_5123\" class=\"textbox\" style=\"width: 90%;\" cols=\"50\" rows=\"8\">\/\/\u00a0code\u00a0by\u00a0xujiwei\u00a0from\u00a0www.xujiwei.cn&lt;br\u00a0\/&gt;&lt;br \/&gt; \/\/\u00a0\u6ce8\u610f\uff0c\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u53ea\u80fd\u5728Firefox\u4e2d\u6b63\u5e38\u8fd0\u884c&lt;br\u00a0\/&gt;&lt;br \/&gt; &lt;form\u00a0id=\"test\"\u00a0onsubmit=\"return\u00a0validform();\"&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0Name:\u00a0&lt;input\u00a0type=\"text\"\u00a0id=\"name\"\u00a0\/&gt;&lt;br\u00a0\/&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0&lt;input\u00a0type=\"button\"\u00a0onclick=\"validate();\"\u00a0value=\"Validate\"\u00a0\/&gt;&lt;br \/&gt; &lt;\/form&gt;&lt;br \/&gt; &lt;script\u00a0type=\"text\/javascript\"&gt;&lt;br \/&gt; &lt;!--&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validform()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0(document.getElementById(\"name\").value!=\"\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validate()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u4f7f\u7528new\u00a0Function\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u6210\u51fd\u6570&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0var\u00a0vaf=new\u00a0Function(document.getElementById(\"test\").getAttribute(\"onsubmit\"));&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(vaf())&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"OK\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"Error\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \/\/--&gt;&lt;br \/&gt; &lt;\/script&gt;<\/textarea><\/p>\n<p><input class=\"button\" onclick=\"runCode('HTML_5123');\" type=\"button\" value=\"\u8fd0\u884c\u4ee3\u7801\" \/> [Ctrl+A \u5168\u90e8\u9009\u62e9 \u63d0\u793a\uff1a\u4f60\u53ef\u5148\u4fee\u6539\u90e8\u5206\u4ee3\u7801\uff0c\u518d\u6309\u8fd0\u884c]<\/p>\n<p>\u5982\u679c\u628a\u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u5728IE\u4e2d\u8fd0\u884c\uff0c\u90a3\u4e48\u4f1a\u53d1\u73b0\u65e0\u8bba\u662f\u5426\u5728\u8f93\u5165\u6846\u4e2d\u8f93\u5165\u503c\uff0c\u90fd\u4f1a\u663e\u793a\u201cError\u201d\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u4f7f\u7528getAttribute\u83b7\u53d6onsubmit\u5c5e\u6027\u503c\u4e4b\u540e\uff0c\u5224\u65ad\u8fd4\u56de\u503c\u7c7b\u578b\u662f\u5426\u4e3a\u5b57\u7b26\u4e32\uff0c\u5982\u679c\u662f\u5b57\u7b26\u4e32\u5c31\u4f7f\u7528new\u00a0Function\u5c06\u5b83\u8f6c\u6362\u6210\u51fd\u6570\uff1a<\/p>\n<p><textarea id=\"HTML_2858\" class=\"textbox\" style=\"width: 90%;\" cols=\"50\" rows=\"8\">\/\/\u00a0code\u00a0by\u00a0xujiwei\u00a0from\u00a0www.xujiwei.cn&lt;br\u00a0\/&gt;&lt;br \/&gt; \/\/\u00a0\u6ce8\u610f\uff0c\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u5728Firefox\u548cIE\u4e2d\u5747\u80fd\u6b63\u5e38\u8fd0\u884c&lt;br\u00a0\/&gt;&lt;br \/&gt; &lt;form\u00a0id=\"test\"\u00a0onsubmit=\"return\u00a0validform();\"&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0Name:\u00a0&lt;input\u00a0type=\"text\"\u00a0id=\"name\"\u00a0\/&gt;&lt;br\u00a0\/&gt;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0&lt;input\u00a0type=\"button\"\u00a0onclick=\"validate();\"\u00a0value=\"Validate\"\u00a0\/&gt;&lt;br \/&gt; &lt;\/form&gt;&lt;br \/&gt; &lt;script\u00a0type=\"text\/javascript\"&gt;&lt;br \/&gt; &lt;!--&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validform()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0(document.getElementById(\"name\").value!=\"\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0function\u00a0validate()\u00a0{&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0var\u00a0vaf=document.getElementById(\"test\").getAttribute(\"onsubmit\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0vaf=typeof(vaf)==\"string\"?new\u00a0Function(vaf):vaf;&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(vaf())&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"OK\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0alert(\"Error\");&lt;br \/&gt; \u00a0\u00a0\u00a0\u00a0}&lt;br \/&gt; \/\/--&gt;&lt;br \/&gt; &lt;\/script&gt;<\/textarea><\/p>\n<p><input class=\"button\" onclick=\"runCode('HTML_2858');\" type=\"button\" value=\"\u8fd0\u884c\u4ee3\u7801\" \/> [Ctrl+A \u5168\u90e8\u9009\u62e9 \u63d0\u793a\uff1a\u4f60\u53ef\u5148\u4fee\u6539\u90e8\u5206\u4ee3\u7801\uff0c\u518d\u6309\u8fd0\u884c]<\/p>\n<p>\u8fd9\u6837\uff0c\u5c31\u89e3\u51b3\u4e86\u4f7f\u7528getAttribute(\"onsubmit\")\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u4e00\u6837\u7684\u95ee\u9898\uff0c\u5bf9\u4e8e\u5176\u4ed6\u56de\u8c03\u51fd\u6570\u5982onclick\u4e5f\u53ef\u4ee5\u8fd9\u6837\u5904\u7406\u3002\u5f53\u7136\uff0c\u5982\u679c\u5927\u5bb6\u6709\u4ec0\u4e48\u66f4\u597d\u7684\u89e3\u51b3\u65b9\u6848\u4e5f\u53ef\u4ee5\u63d0\u51fa\u6765\u5206\u4eab\u4e00\u4e0b:)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u6539AJAXRequest\u7684\u8fc7\u7a0b\u4e2d\uff0c\u78b0\u5230\u4e86\u4e2a\u95ee\u9898\uff0c\u5e94\u8be5\u7b97\u662fFirefox\u548cIE\u4e4b &hellip;<\/p>\n<p class=\"read-more\"><a href=\"https:\/\/xujiwei.com\/blog\/2007\/05\/return-value-of-getattribute\/\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11],"tags":[117,118,28],"_links":{"self":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts\/206"}],"collection":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/comments?post=206"}],"version-history":[{"count":0,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/posts\/206\/revisions"}],"wp:attachment":[{"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/media?parent=206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/categories?post=206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xujiwei.com\/blog\/wp-json\/wp\/v2\/tags?post=206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}