Uncaught TypeError: Cannot read property 'value' of null
2014-06-10 09:07
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使用document.getElementById("dd"),或者$("dd"); 可能会遇到如上错误，可能是因为使用了不存在的 id，比如：$("id1")，id1 在 HTML 中根本不存在，则会报如标题中的错误。
要注意，是不是把class当成了id
要注意，是不是把class当成了id
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