利用JS动态生成隔行换色HTML表格的两种方法

站长资源 2024/11/27 佚名

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用JS生成动态生成表格，行、列由用户输入，并使表格隔行换色

方法一.

代码:

<!DOCTYPE html>
<html>
 <head>
  <title>动态表格</title>
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="this is my page">
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <!--<link rel="stylesheet" type="text/css" href="./styles.css" rel="external nofollow" rel="external nofollow" >-->
  <script type="text/javascript">
   function createTable(){
      var table = document.createElement("table");
      //添加边框
      table.border = "1";
      table.width = "100%";
      //table API
      //创建一行
      //var tr = table.insertRow(table.rows.length);
      //创建单元格
      //var td = tr.insertCell(tr.cells.length);
        //行，单元格
        var tr,td;
         //获得行列值
        var tr_value = document.getElementById("tr_value").value;
        var td_value = document.getElementById("td_value").value;
      for(var i=0;i<tr_value;i++){
        //循环插入元素
        tr = table.insertRow(table.rows.length);
        if(i%2 === 0){
          tr.style.backgroundColor = "#D5E3D0";
        }else{
          tr.style.backgroundColor = "#909C97";
        }
        for(var j=0;j<td_value;j++){
          td = tr.insertCell(tr.cells.length);
          td.innerHTML = "_";
          td.align = "center";
        }
      }
      //td.innerHTML = "测试";
      document.querySelector("#tb").appendChild(table);
    }
  </script>
 </head>
 <body>
 <input type="text" id="tr_value">输入行数
 <input type="text" id="td_value">输入列数
<input type="button" onclick="createTable()"； value="createTable">
<hr>
<div id="tb"></div>
 </body>
</html>

运行结果:

输入行数、列数，create Table:

方法二.

代码:

<!DOCTYPE html>
<html>
 <head>
  <title>动态表格</title>
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="this is my page">
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <!--<link rel="stylesheet" type="text/css" href="./styles.css" rel="external nofollow" rel="external nofollow" >-->
  <script type="text/javascript">
     var rows = prompt("输入行数:", "");
     var cols = prompt("输入列数:", "");
     document.write('<table width="100%" border="1px">');
     document.write('<caption>成绩表</caption>');
     for (var row = 1; row <= rows; row++) {
       if (row % 2 == 0) {
         document.write('<tr bgcolor=#CCCCCC>');
       } else {
         document.write('<tr>');
       }
       for (var col = 0; col < cols; col++) {
         document.write('<td height="20px"></td>');
       }
       document.write('</tr>');
     }
     document.write('</table>');
  </script>
 </head>
 <body>
 </body>
</html>

运行结果:

输入行数、列数: