1. 程式人生 > 實用技巧 >事件冒泡例子

事件冒泡例子

<body>
  <div id="red" style="border: 1px solid #000; width: 400px; height: 400px;">
    <div id="blue" style="border: 1px solid #000; width: 300px; height: 300px;">
      <div
        id="pink"
        style="border: 1px solid #000; width: 200px; height: 200px;"
      ></div>
    </div>
  </div>
</body>
<script type="text/javascript">
  var
red = document.getElementById("red"); var blue = document.getElementById("blue"); var pink = document.getElementById("pink"); red.onclick = function (event) { red.style.backgroundColor = red.style.backgroundColor === "red" ? "" : "red"; event.stopPropagation(); // stop(event);
}; blue.onclick = function (event) { blue.style.backgroundColor = "blue"; event.stopPropagation(); // stop(event); }; pink.onclick = function (event) { event.stopPropagation(); pink.style.backgroundColor = pink.style.backgroundColor === "pink" ? "" : "pink"; // stop(event);
}; function stop(event) { //阻止冒泡 var evt = event || window.event; console.log("???", evt); if (evt.cancelBubble) { evt.cancelBubble = true; } else { evt.stopPropagation(); } } </script>