css 文件里面有兩個(gè)class: one? two? 用js實(shí)現(xiàn)表格隔行變色
function changeColor(){
var tabTrs=document.getElementByTagName(’tr’);
var trLength =tabTra.length;
for（var i=0;i<trLength;i++）{
if(trLength%2==0){
tabTrs[i].className=“one”;
}else{
tabTrs[i].className=“two”;
}
//鼠標(biāo)經(jīng)過顯示的效果
var oldcolor
tabTrs[i].onmouseover=function(){
oldcolor=this.className;
this.className=“over”;
}
tabTrs[i].onmouseOut=function(){
this.className=oldcolor;
}
}
}
