$(function(){       var w=0,tip=$("<b>");       tip.css({    "z-index":99999,position:"absolute",color:"red",display:"none"               }),       $("body").append(tip),//页面创建b标签用来显示数字       $(document).on("click",function(e){             var x=e.pageX,y=e.pageY;//获取点击页面坐标             tip.text("+"+ ++w).css({//数字加1               display:"block",top:y-15,left:x,opacity:1//定位显示             }).stop(!0,!1).animate({//stop(stopAll,goToEnd),如果发生多次点击时，要停止上一个动画的执行                               top:y-180,opacity:0},800,function(){                                         tip.hide()                                     }),             e.stopPropagation()       }); });