JS实现可用滑块滑动的缓动图代码

000

尝试模仿京东的“发现好货”模块的可用滑块滑动的缓动图

JS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
  }
}

HTML代码 

<div class=\"fxhh_ctt\">
  <div class=\"fh_c_show\" id=\"fhcShow\">
    <ul class=\"fh_c_under\" id=\"fhc_ul\">
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品1</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品2</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品3</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品4</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品5</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品6</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品7</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品8</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品9</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品10</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品11</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品12</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品1</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品2</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品3</p>
        <img src=\"\" alt=\"\">
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <img src=\"\" alt=\"\">
        <p class=\"botTit\">商品4</p>
      </a></li>
      <li><a href=\" \" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" rel=\"external nofollow\" >
        <p class=\"topTit\">商品5</p>
        <img src=\"\" alt=\"\">
      </a></li>
    </ul>
  </div>
  <!-- 滑块 -->
  <div class=\"fhc_box\" id=\"fhc_d_box\">
    <div class=\"fhc_drop\" id=\"fhc_dBar\"></div>
  </div>
  <!-- 滑块end -->
</div>
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;
}

以上所述是小编给大家介绍的JS实现可用滑块滑动的缓动图代码，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！

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