JS实现可用滑块滑动的缓动图代码

 function $(id) { return document.getElementById(id); } //缓动轮播图 var fhTimer; var fhNum = 0; var barNum = 0; fhTimer = setInterval(marquee, 20); function marquee() { fhNum--; barNum = fhNum; if(fhNum <-2400) { fhNum = 0; } $("fhc_ul").style.left = fhNum + "px"; if(fhNum <-2400) { barNum = fhNum + 2400; } $("fhc_dBar").style.left = -(barNum / 2.75) + "px"; } $("fhcShow").onmouseover = function() { $("fhc_d_box").style.display = "block"; clearInterval(fhTimer); } $("fhc_d_box").onmouseover = function() { $("fhc_d_box").style.display = "block"; } $("fhcShow").onmouseout = function() { $("fhc_d_box").style.display = "none"; fhTimer = setInterval(marquee, 20); } //鼠标悬浮在标题也在暂停滚动 $("fhTit").onmouseover = function() { clearInterval(fhTimer); } $("fhTit").onmouseout = function() { fhTimer = setInterval(marquee, 20); } //滑块 $("fhc_dBar").onmousedown = function(event) { var event = event || window.event; var leftValue = event.clientX - this.offsetLeft; document.onmousemove = function(event) { var evt = event || window.event; var locationX = evt.clientX - leftValue; if(locationX <0) { locationX = 0; } else if(locationX > 960 - 99) { locationX = 960 - 99; } $("fhc_dBar").style.left = locationX + "px"; fhNum = -locationX * 2.75; //如果选中了，就取消选中，防止出现bug window.getSelection ? window.getSelection().removeAllRanges() : document.selection.empty(); } document.onmouseup = function() { document.onmousemove = null;//取消注册的这个事件 } }

 
 
 
 
 
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 CSS代码 .fxhh .fxhh_ctt { width: 990px; background-color: #fff; float: left; } .fxhh .fxhh_ctt .fh_c_show .fh_c_under img { width: 150px; height: 150px; } .fxhh .fxhh_ctt .fh_c_show { width: 990px; height: 260px; background-color: #fff; overflow: hidden; position: relative; } .fxhh .fxhh_ctt .fh_c_show .fh_c_under { width: 2000%; position: absolute; } .fxhh .fxhh_ctt .fh_c_show .fh_c_under li { float: left; text-align: center; width: 150px; height: 180px; margin-top: 40px; margin-right: 50px; } .fxhh .fxhh_ctt .fh_c_show .fh_c_under li .topTit { margin-bottom: 10px; } .fxhh .fxhh_ctt .fh_c_show .fh_c_under li .botTit { margin-top: 10px; } .fxhh .fxhh_ctt .fhc_box { display: none; width: 960px; height: 4px; background-color: #f3f3f3; margin: 0 auto; position: absolute; top: 250px; left: 210px; } .fxhh .fxhh_ctt .fhc_drop { width: 99px; height: 9px; border-radius: 4px; background-color: #d8d8d8; position: absolute; top: -3px; }