jQuery 切换图片（图标）效果

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <title>Title</title>

  <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>

  <style>

    * {

      margin: 0;

      padding: 0;

    }

    ul,

    li {

      list-style: none;

    }

    body {

      background: #f6f6f6;

    }

    .active {

      background: red;

    }

    #box li {

      display: none;

    }

    #ul {

      background: #fff;

    }

    #ul li {

      float: left;

      width: 200px;

    }

    #ul li img {

      width: 60px;

      padding: 10px;

    }

    #ul:after {

      content: "020";

      display: block;

      height: 0;

      clear: both;

      visibility: hidden;

    }

  </style>

</head>

<body>

  <ul id="ul">

    <li id="n1" class="active"><img src="data:image/n1_hover.png"></li>

    <li id="n2"><img src="data:image/n2.png"></li>

    <li id="n3"><img src="data:image/n3.png"></li>

  </ul>

  <ul id="box">

    <li style="display: block">111</li>

    <li>222</li>

    <li>333</li>

  </ul>

  <script>

    $(function () {

      function tab(navItem, boxItem, navActiveClassName) {

        navItem.click(function () {

          $(this).addClass(navActiveClassName).siblings().removeClass(navActiveClassName);

          boxItem.eq($(this).index()).show().siblings().hide();

          var id = $(this).attr("id");//id命名需要和图片名称一样

          navItem.each(function () {

            var newId = $(this).attr("id");

            if (id == newId) {

              $(this).find("img").attr("src", "image/" + id + "_hover.png");//点亮的图片名称加_hover

            } else {

              $(this).find("img").attr("src", "image/" + newId + ".png");

            }

          })

        })

      }

      tab($("#ul li"), $("#box li"), "active");

    })

  </script>

</body>

</html>
巴特西

jQuery 切换图片（图标）效果

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