复制代码代码如下:
função getElementsbyclassName (n) {
var classElements = [], allements = document.getElementsByTagName ('*');
for (var i = 0; i <allelements.length; i ++)
{
if (allements [i] .className == n) {
ClassElements [ClassElements.Length] = ALELELEMENTS [I];
}
}
retorno astlements;
}