<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>add</title>
</head><body>
<input type="text" id="num"/><button onclick="fun()">add</button>
<script type="text/javascript">
function fun()
{
var num = parseInt(document.getElementById("num").value,10);//转换为数字
for(var i=0;i<num;i++)
{
var ipt = document.createElement("input");
ipt.type = "text";//这里的值,就是<input type=""/>里面type的值,如果是radio,就是单选了
document.body.appendChild(ipt);
}
}
</script>
</body></html>
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>add</title>
</head><body>
<input type="text" id="num"/><button onclick="fun()">add</button>
<div id="ipts"/>
<script type="text/javascript">
function fun()
{
var num = parseInt(document.getElementById("num").value,10);
var array = new Array();
for(var i=0;i<num;i++)
{
array.push('<input type="text"/><br/>');//用数组组合字符串比直接字符串相加速度要快
}
document.getElementById("ipts").innerHTML = array.join('');
}
</script>
</body></html>
<input type="text" id="num"/><button onclick="fun()">add</button>
<div id="ipts"/>
<script type="text/javascript">
function fun()
{
var num = parseInt(document.getElementById("num").value,10);
var array = new Array();
for(var i=0;i<num;i++)
{
array.push('<input type="text"/><br/>');//用数组组合字符串比直接字符串相加速度要快
}
document.getElementById("ipts").innerHTML = array.join('');
}
</script>
。谢谢大家。