上代码：
<!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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>点击按钮弹出输入框</title>
<style>
p{ margin:0; padding:0;}
.login-put {
clear: both;
line-height: 36px;
margin-bottom: 20px;
overflow: hidden;
width: 500px;
}
.login-put label {
color: #8c8686;
float: left;
font-size: 14px;
height: 36px;
line-height: 36px;
text-align: right;
width: 120px;
}
#form1{ float:left; width:320px}
#form1 label {
float: left;
text-align: left;
width: 80px;
}
input {
cursor: pointer;
vertical-align: middle;
}
.login-put #div1 {
padding-left: 120px;
}
.login-put #div1 input {
border: 1px solid #dddddd;
color: #999999;
float: left;
height: 36px;
line-height: 36px;
margin-right: 10px;
padding: 0 5px;
width: 190px;
}
</style>
</head>
<body>
<div class="login-put"><label>点击：</label>
<form id="form1" name="form1" method="post" action="">
<p>
<label>
<script type="text/javascript">
function show()
{
var value = document.getElementById("div1").style.display;
if(value=="none")
{
document.getElementById("div1").style.display="block";
}
else
document.getElementById("div1").style.display="none";
}
</script>
<input type="button" value="我是按钮" onClick="show()"/>
<div id="div1" style="display:none">
<input class="text01" name="" type="text" />
</div>
</div>
</body>
</html>
效果：
END