利用JS动态生成隔行换色HTML表格的两种方法

更新时间：2020-07-31 12:12:01 作者：startmvc

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:<!DOCTYPEhtml>

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: