02-21 01:23 阅读 186

js实现鼠标切换图片（无定时器）

这篇文章主要为大家详细介绍了js实现鼠标切换图片，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

本文实例为大家分享了js实现鼠标切换图片的具体代码，供大家参考，具体内容如下

实现效果，可以利用鼠标移动在对应的小点点上，或者点击左右两侧的箭头切换图片，并在图片的上方显示出图片的页数，下方显示出对应图片的标题。

全部代码如下：

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <meta http-equiv="X-UA-Compatible" content="ie=edge">

  <title>图片切换</title>

  <style>

    .picture {

      position: relative;

      width: 500px;

      height: 333px;

      margin: 0 auto;

      border: 2px solid rgb(231, 127, 217);

      overflow: hidden;

}

    .radius {

      width: 100%;

      height: 10px;

      position: absolute;

      bottom: 30px;

      text-align: center;

}

    .pg {     //图片上方页码

      position: absolute;

      margin: 0;

      width: 100%;

      height: 20px;

      background-color: rgba(0, 0, 0, .4);

      text-align: center;

      font-size: 16px;

      font-weight: 600;

      color: #fff;

}

    .title {

      position: absolute;

      width: 100%;

      bottom: 0px;

      text-align: center;

      font-size: 16px;

      font-weight: 600;

      color: rgb(21, 223, 72);

}

    span {

      display: inline-block;

      border: 10px solid #fdfdfd;

      border-radius: 50%;

}

    .active {

      border: 10px solid #656466;

}

    /* 左右箭头 */

    .arrowhead-left,

    .arrowhead-right {

      position: absolute;

      width: 41px;

      height: 69px;

      font-size: 30px;

      line-height: 70px;

      text-align: center;

      color: #D6D8D4;

      background-color: rgba(0,0,0,.3);

}

    .arrowhead-left {

      left: 0;

      top: 40%;

}

    .arrowhead-right {

      right: 0;

      top: 40%;

}

  </style>

</head>

<body>

  <div class="picture">

    <!-- 图片页码 -->

    <p class="pg">封面</p>

    <img src="./image/d8.jpeg" alt="">

    <!-- 小圆点点 -->

    <p class="radius"></p>

    <!-- 图片的下面标题 -->

    <p class="title">标题</p>

    <!-- 左右箭头 -->

    <div class="arrowhead-left" id="al"> < </div> 

    <div class="arrowhead-right" id="ar"> > </div>

  </div>

  <script>

    var address = ["./image/d1.jpeg", "./image/d2.jpeg", "./image/d3.jpeg", "./image/d4.jpeg", "./image/d5.jpeg", "./image/d7.jpeg"];

    // var imgs = document.getElementsByTagName("img");

    var imgs = document.querySelector("img");

    var len = address.length;

    var str = "";

    var pp = document.getElementsByTagName("p");//获取的是一个集合

    // var pp = document.querySelector("p");  //获取的是一个元素

    var al = document.getElementById("al");

    var ar = document.getElementById("ar");

    //添加span标签

    for (i = 0; i < len; i++) {

      str += ' <span></span>'

}

    console.log(str);

    console.log(pp);

    pp[1].innerHTML = str;

    var spans = pp[1].getElementsByTagName('span');

    spans[0].className = 'active';

    for (i = 0; i < len; i++) {

      spans[i].index = i;

      spans[i].onmouseover = function () {  //所有圆点的类为空

        for (i = 0; i < len; i++) {

          spans[i].className = "";

}

        this.className = 'active';      //给点击的span（圆点）添加类名

        imgs.src = address[this.index];  

        pp[0].innerHTML = [this.index + 1] + "/6";

        pp[2].innerHTML = "风光" + [this.index + 1];

}

}

    var n = 0 ;

    ar.onclick = function () {

      for (i = 0; i < len; i++) {

        spans[i].className = "";

}

      spans[n].className = "active";

      imgs.src = address[n];

      pp[0].innerHTML = (n+1) + "/6";

      pp[2].innerHTML = "风光" +(n+1);

      if (n<5) {

        n++; 

}

      else {

       n=0;

}

}

    al.onclick = function () {

     for (i = 0; i < len; i++) {

       spans[i].className = "";

}

     spans[n].className = "active";

     imgs.src = address[n];

     pp[0].innerHTML = (n+1) + "/6";

     pp[2].innerHTML = "风光" +(n+1);

     if (n>0) {

       n--; 

}

     else {}

      n=(len-1);

}

}

  </script>

</body>

</html>

以上就是本文的全部内容，希望对大家的学习有所帮助