var count = 10;
 
 for(var i = count;i--;){
 
   var div = document.createElement('div');
 
   div.innerHTML = "test_div"+i;
 
   div.className = "test_div";
 
   document.body.appendChild(div);
 
 }
 
 //绑定冒泡阶段点击事件
 
 document.body.addEventListener('click', function(e){ 
 
   if(e.target && e.target.className == "test_div") {
 
     alert(e.target.innerHTML+' bubble');
 
   }
 
 }, false)
 
 //绑定捕获阶段点击事件
 
 document.body.addEventListener('click', function(e){ 
 
   if(e.target && e.target.className == "test_div") {
 
     alert(e.target.innerHTML+' capture');
 
   }
 
 }, true)
 
  
 
 触发顺序:捕获阶段-》目标阶段-》冒泡阶段
 
转载于:https://www.cnblogs.com/taojunlong/p/6833412.html