编程挑战有点不太懂
for(var n=1;n<=lis.length;n++){
lis[n].index = n;
lis[n].onclick = function(){
alert("selected tab");
for(var i=0;i<lis.length;i++){
lis[i].className = "";
divs[i].className = "hide";
}
this.className = "on";
divs[this.index].className = "";
};
}第一个for循环里是为了找触发onclick的元素吗? 有点不太懂
lis[n].index = n; lis[n].onclick = function()
