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利用js实现表格隔行换色效果

首先我们来看一下实现的效果,如下图所示:

5482894161c362bdf2bed77cec89a47.png

思路:

确定事件: 文档加载完成 onload 2. 事件要触发函数: init() 3. 函数:操作页面的元素 要操作表格中每一行 动态的修改行的背景颜色

具体代码:

<!DOCTYPE html><html><head>  <meta charset="UTF-8">  <title>Title</title>  <script >    function init(){      //得到表格      var tab = document.getElementById("tab");      //得到表格中每一行      var rows = tab.rows;      //便利所有的行,然后根据奇数 偶数      for(var i=1; i < rows.length; i++){        var row = rows[i]; //得到其中的某一行        if(i%2==0){          row.bgColor = "yellow";        }else{          row.bgColor = "red"        }      }    }  </script></head><body onload="init()"><table border="1px" width="600px" id="tab">  <tr>    <td>      <input type="checkbox"/>    </td>    <td>分类ID</td>    <td>分类名称</td>    <td>分类商品</td>    <td>分类描述</td>    <td>操作</td>  </tr>  <tr>    <td>      <input type="checkbox"/>    </td>    <td>1</td>    <td>手机数码</td>    <td>华为,小米,尼康</td>    <td>黑马数码产品质量最好</td>    <td>      <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" >修改</a>|<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" >删除</a>    </td>  </tr>  <tr>    <td>      <input type="checkbox"/>    </td>    <td>2</td>    <td>成人用品</td>    <td>充气的</td>    <td>这里面的充气电动硅胶的</td>    <td><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" >修改</a>|<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" >删除</a></td>  </tr>  <tr>    <td>      <input type="checkbox"/>    </td>    <td>3</td>    <td>电脑办公</td>    <td>联想,小米</td>    <td>笔记本特卖</td>    <td><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" >修改</a>|<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" >删除</a></td>  </tr>  <tr>    <td>      <input type="checkbox"/>    </td>    <td>4</td>    <td>馋嘴零食</td>    <td>辣条,麻花,黄瓜</td>    <td>年货</td>    <td><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" >修改</a>|<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" >删除</a></td>  </tr>  <tr>    <td>      <input type="checkbox"/>    </td>    <td>5</td>    <td>床上用品</td>    <td>床单,被套,四件套</td>    <td>都是套子</td>    <td><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" >修改</a>|<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" >删除</a></td>  </tr></table></body></html>

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文章标题:利用js实现表格隔行换色效果

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