• jQuery遍历


    根据标题显示相应的内容,即实现遍历

    实现功能:

    鼠标经过时,标题可以发生颜色的变化,下面显示的内容变为该标题所对应的内容。 

    实现代码:

    1.HTML:

    <body>
      <div class="dl">
        <div class="list">
          <div class="List active">列表1</div>
          <div class="List">列表2</div>
          <div class="List">列表3</div>
          <div class="List">列表4</div>
          <div class="List">列表5</div>
          <div class="List">列表6</div>
          <div class="List">列表7</div>
        </div>
        
        <div class="content">
          <div class="Content">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈1</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈2</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈3</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈4</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈5</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈6</div>
          <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈7</div>
        </div>
      </div>
    </body>

    2.css:

    <style>
    *{
      padding:0;
      margin:0;
    }
    .dl{
      position:fixed;
      700px;
    }
    .List{
      100px;
      height:40px;
      background-color:pink;
      float:left;
      cursor:pointer;
      text-align:center;
    }
    .Content{
      100%;
      height:200px;
      background-color:brown;
      color:white;
    }
    .active{
      background-color:red;
    }
    .hide{
      display:none;
    }
    </style>

    3.js:

    在写js代码之前需要引进你本地上的jQuery,也就是js库。

    <script src="jquery-3.3.1.min.js"></script>
    <script>
      $("document").ready(function(){
        $(".List").mouseover(function(){
          $(this).addClass("active").siblings().removeClass("active");
          var v = $(this).index();
          $(".Content").eq(v).removeClass("hide").siblings().addClass("hide");
        });
      });
    </script>

    注意:

    通过给当前元素增加/去除类,同时给自己的同胞元素去除/增加类来完成。其实是实现了css与js的分离,css负责样式的实现,js负责给元素分配相应的类。

    完整代码:

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
           *{
                padding:0;
                margin:0;
           }
          .dl{
                position:fixed;
                width:700px;
          }
          .List{
                width:100px;
                height:40px;
                background-color:pink;
                float:left;
                cursor:pointer;
                text-align:center;
           }
          .Content{
                width:100%;
                height:200px;
                background-color:brown;
                color:white;
           }
          .active{
                background-color:red;
           }
          .hide{
                display:none;
           }
        </style>
        
        <script src="jquery-3.3.1.min.js"></script>
        <script>
            $("document").ready(function(){
                $(".List").mouseover(function(){
                    $(this).addClass("active").siblings().removeClass("active");
                var v = $(this).index();
                $(".Content").eq(v).removeClass("hide").siblings().addClass("hide");
                
                });
                
            });
        </script>
        
    </head>
    <body>
        <div class="dl">
            <div class="list">
                <div class="List active">列表1</div>
                <div class="List">列表2</div>
                <div class="List">列表3</div>
                <div class="List">列表4</div>
                <div class="List">列表5</div>
                <div class="List">列表6</div>
                <div class="List">列表7</div>
            </div>
            
            <div class="content">
                <div class="Content">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈1</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈2</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈3</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈4</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈5</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈6</div>
                <div class="Content hide">哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈7</div>
            </div>
            
        </div>
    
        
        
    </body>
    </html>
    View Code
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  • 原文地址:https://www.cnblogs.com/5201314m/p/9798858.html
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