先定义两变量  移上去的定时器  和 移开的定时器

　　　　var overTimer, outTime;          $('.box').hover(function(){             overTimer?clearTimeout(overTimer):'';             outTime?clearTimeout(outTime):'';                          overTimer = setTimeout('show()',1000);          },function(){             overTimer?clearTimeout(overTimer):'';             outTime?clearTimeout(outTime):'';                          outTime = setTimeout('hide()',1000);           });                  function show(){            $('.box').html('事件触发');        }         function hide(){            $('.box').html('悬停');         }

 

     
      悬停