复制代码代码如下:
función getElementsByClassName (n) {
var classelements = [], alElEments = document.getElementsByTagName ('*');
para (var i = 0; i <alelements.length; i ++)
{
if (AllElements [i] .classname == n) {
Classelements [ClassElements.Length] = AllElements [i];
}
}
devolver Classelements;
}