JavaScript 停止事件传播（阻止事件冒泡）

Posted 2021-05-19

function doSomething (e) {
  var event = e || window.event;

  [body of event handler function goes here]

  if (event.stopPropagation) {
    event.stopPropagation();
  } else {
    event.cancelBubble = true;
  } 
}