阻止事件冒泡

 

 

<body onclick="alert('body')">
    <!--html-->
    <div
      style="width: 400px; height: 400px; background: red"
      onclick="alert(this.style.background)"
    >
      <div
        id="div2"
        style="width: 300px; height: 300px; background: palevioletred"
      >
        <div
          style="width: 200px; height: 200px; background: yellow"
          onclick="alert(this.style.background)"
        >
          <div
            id="div1"
            style="width: 100px; height: 100px; background: palegreen"
          >
            <a id="aaa" href="http://www.baidu.com">aaa</a>
          </div>
        </div>
      </div>
    </div>

    <script>
      //此jquery既阻止默认行为又停止冒泡
      // $("#div1").on('click',function(){
      //     return false;
      // });

      window.onload = function () {
        var oDiv1 = document.getElementById("div1");
        var oDiv2 = document.getElementById("div2");

        oDiv1.onclick = function (ev) {
          var oEvent = ev || event;
          alert("this is div1");

          //js阻止事件冒泡
          //oEvent.cancelBubble = true;
          //oEvent.stopPropagation();

          //js阻止链接默认行为，没有停止冒泡
          //oEvent.preventDefault();
          //return false;
        };

        oDiv2.onclick = function (ev) {
          var oEvent = ev || event;
          alert("this is div2");
          oEvent.cancelBubble = true;
        };
      };
    </script>

 

posted @ 2022-04-18 11:29  罗砂  阅读(37)  评论(0)    收藏  举报