Jquery实现弹性滑块滑动选择数值插件

.main { margin: 0 auto; margin-top: 100px; width: 500px; font-family: 微软雅黑; -webkit-user-select: none;}.contain { width: 500px; height: 40px; background-color: #E8E8E8;}.track { width: 16px; height: 46px; position: absolute; margin: -3px 0 0 0px; background-color: #2dacd1; cursor: pointer;}.valueC { height: 40px; position: absolute; margin: 0; background-color: #43BFE3;}.value span { position: absolute; text-align: right; height: 40px; line-height: 40px; color: #808080; border-right: 1px solid #dddddd;}.show { width: 45px; height: 30px; background-color: #333; color: #fff; text-align: center; line-height: 30px; position: absolute; opacity: 0.9; margin-top: -38px; margin-left: -15px;}

<div class="main"> <div class="contain">  <div class="show">0</div>  <div class="valueC"></div>  <div class="value"> </div>  <div class="track"></div> </div></div>

<script type="text/javascript" src="/js/jquery-1.8.0.min.js"></script><script type="text/javascript"> $(function(){ScrollerTrack.Init();});var ScrollerTrack={ BodyWidth:500, MaxValue:300, CurrentX:0, CurrentValue:0, Count:0, Init:function(){ var mWidth=ScrollerTrack.BodyWidth; $(".contain").css("width",mWidth+"px"); var count=ScrollerTrack.MaxValue/50; ScrollerTrack.Count=count; var itemWidth=mWidth/count; for(var i=0;i<count;i++){  var span=$("<span>"+(i+1)*50+"</span>");  $(span).css("width",itemWidth+"px").css("margin-left",i*itemWidth+"px");  $(".value").append(span); } ScrollerTrack.Value(); }, Value:function(){  var currentValue;  var isMoving=false;  ScrollerTrack.CurrentX=$(".track").offset().left;  $(".track").mousedown(function() {  var target=$(this).parent();  isMoving=true;  $("html,body").mousemove(function(event) {   if(isMoving==false)return;   var changeX = event.clientX - ScrollerTrack.CurrentX;         currentValue = changeX - ScrollerTrack.CurrentX;   if(changeX<=0){   $(target).find(".track").css("margin-left", "0px");   $(target).find(".valueC").css("width", "0px");   $(target).find(".show").css("margin-left", "-15px");   $(target).find(".show").html(0);   ScrollerTrack.CurrentValue=0;   }   else if(changeX>=ScrollerTrack.BodyWidth-16){   $(target).find(".track").css("margin-left", ScrollerTrack.BodyWidth-16+"px");   $(target).find(".valueC").css("width",ScrollerTrack.BodyWidth-16+"px");   $(target).find(".show").css("margin-left", ScrollerTrack.BodyWidth-31+"px");   $(target).find(".show").html(ScrollerTrack.MaxValue);   ScrollerTrack.CurrentValue=ScrollerTrack.MaxValue;   }   else{   $(target).find(".track").css("margin-left", changeX+"px");   $(target).find(".valueC").css("width", changeX+"px");   $(target).find(".show").css("margin-left", changeX-15+"px");   var v=ScrollerTrack.MaxValue*((changeX+16)/ScrollerTrack.BodyWidth);   $(target).find(".show").html(parseInt(v));   ScrollerTrack.CurrentValue=parseInt(v);   }  });  });  $("html,body").mouseup(function() {  isMoving=false;  }); }}</script>

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