事件冒泡

阻止冒泡

w3c的方法是e.stopPropagation()，IE则是使用e.cancelBubble = true

document.getElementById("button").addEventListener("click",function(event){
        alert("button");
        event.stopPropagation();    
    },false);

链接

优秀文章：

• https://blog.csdn.net/sk_yi/article/details/107326653
• http://caibaojian.com/javascript-stoppropagation-preventdefault.html
• 点击子元素却也触发父元素的点击事件