lovecoding
/
VIP22


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="font/iconfont.css">
  <style>
    *{
      margin: 0;
      padding: 0;
    }
    ul{
      list-style: none;
    }
    #container{
      width: 590px;
      height: 470px;
      margin: 100px auto;
      position: relative;
    }
    .selected{
      display: none;
    }
    .choice{
      display: block;
    }
    #btns li{
      width: 20px;
      height: 20px;
      background: purple;
      color: white;
      text-align: center;
      line-height: 20px;
      border-radius: 10px;
      float: left;
      margin-right: 5px;
    }
    #btns{
      position: absolute;
      right: 10px;
      bottom: 10px;
    }
    #btns .select{
      background: red;
    }
    #prev,#next{
      width: 40px;
      height: 40px;
      position: absolute;
      top: 215px;
      opacity: 0.5;
      display: none;
    }
    #next{
      right: 0;
    }
    #prev span {
      font-size: 40px;
    }
    #next span{
      font-size: 40px;
    }
  </style>
</head>
<body>
  <div id="container">
    <div id="img-box">
      <img class="selected choice" src="image/1.jpg" alt="">
      <img class="selected" src="image/2.jpg" alt="">
      <img class="selected" src="image/3.jpg" alt="">
      <img class="selected" src="image/4.jpg" alt="">
      <img class="selected" src="image/5.jpg" alt="">
    </div>
    <ul id="btns">
      <li class="select">1</li>
      <li>2</li>
      <li>3</li>
      <li>4</li>
      <li>5</li>
    </ul>
    <div id="prev">
      <span class="iconfont icon-24gf-previous"></span>
    </div>
    <div id="next">
      <span class="iconfont icon-24gf-next"></span>
    </div>
  </div>
  <script>
    var btns = document.getElementsByTagName('li')
    var imgs = document.getElementsByClassName('selected')
    var next = document.getElementById('next')
    var prev = document.getElementById('prev')
    var container = document.getElementById('container')
    /* 放到全局  显示当前图片的索引 */
    var iNow = 0;
    /* 点击按钮修改颜色 */
    for(var i=0;i<btns.length;i++){
      btns[i].index = i
      btns[i].onclick = function(){
        // for(var j=0;j<btns.length;j++){
        //   btns[j].className = ''
        //   imgs[j].className = 'selected'
        // }
        // btns[this.index].className = 'select'
        // this.className = 'select'
        // imgs[this.index].className = 'selected choice'
        iNow = this.index //btns[i].index  = i
        myFun(iNow)
      }
    } 
    /* 点击显示下一个图片 */
    next.onclick = function(){
      iNow++;
      if(iNow > btns.length - 1){
        iNow = 0
      }
      // for(var i=0;i<btns.length;i++){
      //   btns[i].className = ''
      //   imgs[i].className = 'selected'
      // }
      // btns[iNow].className = 'select'
      // imgs[iNow].className = 'selected choice'
      myFun(iNow)
    }
    /* 点击显示上一个图片 */
    prev.onclick = function(){
      iNow--;
      if(iNow < 0){
        iNow = btns.length - 1
      }
      myFun(iNow)
    }
    /* 鼠标划入 */
    container.onmousemove = function(){
      next.style.display = 'block'
      prev.style.display = 'block'
      clearInterval(timer)
    }
    /* 划出隐藏 */
    container.onmouseout = function(){
      next.style.display = 'none'
      prev.style.display = 'none'
      timer = setInterval(function(){
        next.onclick()
      },1000)
    }
    var timer = setInterval(function(){
      next.onclick()
    },1000)
    var myFun = function(xx){
      for(var i=0;i<btns.length;i++){
        btns[i].className = ''
        imgs[i].className = 'selected'
      }
      btns[xx].className = 'select'
      imgs[xx].className = 'selected choice'
    }
  </script>
</body>
</html>