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登录页面代码【html】

2016-08-13 14:38 337 查看
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="bootstarp/css/bootstrap.min.css">
<script src="bootstarp/js/bootstrap.min.js"></script>
<script src=bootstarp/js/jquery-1.12.2.js"></script>
<style>
#div1{
width:300px;
border:1px solid black;
height:240px;

}
</style>
</head>
<body>
<div id="div1">
<h1 style="text-align: center;color:#ff8d40">购物网登录页面</h1>
<form onsubmit="return chk()" action="load2.php" style="margin-top: 40px;margin-left: 20px;" method="post">
<span>用户名:</span>
<input type="text" name="username" id="un"/><br/><br/>
<span style="letter-spacing: 1em">密</span>码:
<input type="password" name="psw" id="psw">
<br/><br/>
<input type="submit" style="margin-left: 178px"/>
</form>
<div id="errinfo" style="color:red;">
</div>
</div>
<script>
function chk(){
var myform=document.getElementById("un");
var psw=document.getElementById("psw");
if(myform.value==''){
document.getElementById(("errinfo")).innerHTML='必须有用户名';
return false;
}else{
if(psw.value==''){
document.getElementById(("errinfo")).innerHTML='必须有密码';
return false;
}else{
return true;
}
}
}
</script>
</body>
</html>
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