HTML DOM——Event对象

1. 判断鼠标按键 

   function test(event) {
           alert(event.button);
       }

2. 鼠标点击坐标
   

   function test(event) {
           alert(event.clientX + "," + event.clientY);
           //alert(event.screenX + "," + event.screenY);
       }

3. 判断键盘按键
   

   function test(event) {
               alert(event.keyCode);
           }

4. 判断是否按下了SHIFT
   

   function test(event) {
               alert(event.shiftKey);
           }

5. 判断点击的元素
   

   function test(event) {
               alert(event.srcElement.tagName);
               //alert(event.target.tagName);
           }

6. 判断触发的事件类型
   

           function test(event) {
               alert(event.type);
           }