动态生成表单
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript">
window.onload=function(){
var btn =document.getElementById("btn");
var sub=document.getElementById("sub");
var add=document.getElementById("add");
btn.onclick=function(){
alert("1");
}
sub.onclick=function(){
var text= document.createElement("input");
text.type="text";
add.appendChild(text);
}
}
</script>
</head>
<body>
<input id="btn" type="button" value ="show"/>
<input id="sub" type="button" value="sub">
<div id="add">
</div>
</body>
</html>
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