我有一个带有<条码>的选箱子元素。 选箱的形式是myform。 我确信,这样做是这样,因为在我发生错误之前,就印刷了正确的表格:
>> console.log(document.forms[0].id);
myform
我发现错误:
Uncaught TypeError: Cannot read property myselect of undefined (anonymous function)
在我这样做的地方:
document.myform.myselect
任何想法为什么?
感谢:
查阅<条码>文件>格式,而不是<条码><>文件:
document.forms.myform.myselect
您可以不使用<代码>文件.getElementById():
document.getElementById("myform").myselect;
document.getElementById("myselect");
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