// 封装事件委托
var oul = document.querySelector("ul");
var ali = document.querySelectorAll("li");
var ap = document.querySelectorAll("p");
// oul.onclick = entrust(ali);
oul.addEventListener("click",entrust(ali,function(){
console.log(this);
}));
oul.addEventListener("click",entrust(ap,function(){
console.log(this);
}));
function entrust(achild,cb){
return function(e){
for(var i=0;i<achild.length;i++){
if(achild[i] === e.target){
cb.bind(e.target)();
}
}
}
}
