<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>动态生成随机背景色表格</title>
<style>
table{margin-top:20px;width:800px;border:1px solid #ddd;border-collapse:collapse;}
td{border:1px solid #ddd;padding:10px 10px;}
</style>
<script>
//获取页面元素
//绑定点击按钮
//创建table表格
//td的背景用随机颜色
//老套路
window.onload = function(){
//获取页面元素
var row = document.getElementsByTagName("input")[0];
var line = document.getElementsByTagName("input")[1];
var btn = document.getElementById(‘btn‘);
var tableList = document.getElementById(‘tableList‘);
//绑定事件
btn.onclick = function(){
var _row = row.value || 0;
var _line = line.value || 0;
//循环增加tr
for(var i=0; i<_row; i++){
var tr = tableList.insertRow(-1);
//循环增加td
for(var j=0; j<_line; j++){
var td = tr.insertCell(j);
var bgColor = ranColor();
td.style.backgroundColor = bgColor;
}
}
//随机颜色
function ranColor(){
var str = ‘0123456789abcdef‘;
var bgColor = ‘#‘;
for (var i=0;i<6;i++){
var idx = parseInt(Math.random()*str.length);
bgColor += str[idx];
}
return bgColor;
}
}
}
</script>
</head>
<body>
<lable>行</lable>
<input type="text" />
<lable>列</lable>
<input type="text" />
<button id="btn">动态生成随机背景色表格</button>
<table id="tableList"></table>
</body>
</html>