JQ/JS实现隔行换色不成功!

Question

使用javascript实现隔行变色body{font-size:12px;text-align:center;}#tbStu{width:260px;border:1pxsolid#666;background-color:#EEE;}#tbStutr{line-height:23px;}#tbStutrth{background-color:#EC3E3E;color:#FFF;}#tbStu.trOdd{background-color:#FFF;}$(function(){$("#tbStutr:nth-child(even)").addClass('trOdd')})学号姓名性别总分A001一根火柴男0A002两根木头男55A003三朵小花女80A004四颗豆芽女40A005无尽悲伤男1请各位友友们支招,谢谢!

Answer 1

window.onload=function(){
vardoc=document,
tab=doc.getElementById("tbStu"),
tr=tab.getElementByTagName('tr');
for(vari=0,lng=tr.length;iif(i%2){
tr[i].className="trOdd";
}
}
}