鼠标长安.html

<!DOCTYPE HTML>  
<html>  
 <head>  
  <title>鼠标长按事件</title>  
  <meta charset="utf-8">
  <meta name="Generator" content="EditPlus">  
  <meta name="Author" content="">  
  <meta name="Keywords" content="">  
  <meta name="Description" content="">  
  <script>  
        var num = 0 ;   
        function whichElement(e){  
            var timer_alert = setTimeout(function() {  
            if(e.which==1) {  
                num++  
                if(num==2){  
                    num=0;   
                    alert( "鼠标长按" );   
                }else{  
                    whichElement( e );  
                }  
            }  
        }, 1000) ;
  
    }  
  </script>  
 </head>  
  
 <body>  
   <div style="border:1px solid #E0E0E0;width:120px;height:130px;" onmousedown="whichElement(event)">  
       
   </div>  
 </body>  
</html>  