<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>欢迎你,请先登陆!</title>
<script type="text/javascript" src="../static/jsp/lx.js"></script>
<script type="text/javascript">alert('这是javascript代码')</script>
</head>
<body>
<p id="demo">www</p>
<script>
document.getElementById('demo').innerHTML = Date()
</script>
<div id="container" style="width: 400px" align="center">
<div id="header" style="background-color: aquamarine">
<h2 align="center">登陆</h2>
</div>
<div id="content">
<form>
<p align="center">账号:
<input id="uname" type="tex" name="user" placeholder="请输入用户名">
</p>
<p align="center">密码:
<input id="upass" type="password" name="psw">
</p>
<div id="error_box"><br></div>
<br>
<button onclick="fnLogin()">登陆</button>
   
<input type="button" name="regist" value="注册">
</form>
</div>
<div style="background-color: aquamarine">
<i>版权信息@</i>
</div>
</div>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>欢迎你,请先登陆!</title>
<script type="text/javascript" src="../static/jsp/lx.js"></script>
<script type="text/javascript">alert('这是javascript代码')</script>
</head>
<body>
<p id="demo">www</p>
<script>
document.getElementById('demo').innerHTML = Date()
</script>
<button type="button" onclick=window.alert("number")>press</button>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>欢迎你,请先登陆!</title>
<script type="text/javascript" src="../static/jsp/lx.js"></script>
<link rel="stylesheet" type="text/css" href="../static/css/lx.css" rel="external nofollow" >
</head>
<body>
<div class="div" id="container">
<div id="header" >
<h2 class="h">登陆</h2>
</div>
<div id="content">
<p class="p">账号:
<input id="uname" type="text" placeholder="请输入用户名">
</p>
<p class="p">密码:
<input id="upass" type="password" >
</p>
<div id="error_box"><br>
</div>
<button onclick="fnLogin()">登陆</button>
   
<input type="button" name="regist" value="注册">
</div>
<div>
<i>版权信息@</i>
</div>
</div>
</body>
</html>
function fnLogin() {
var oUname = document.getElementById("uname")
var oUpass = document.getElementById("upass")
var oError = document.getElementById("error_box")
if (oUname.value.length > 20 || oUname.value.length < 6) {
oError.innerHTML = "请输入6-20位字符"
}
if (oUpass.value.length > 20 || oUpass.value.length < 6) {
oError.innerHTML = "请输入6-20位字符"
}
}
.div {
border: 5px solid #cccccc;
width: 400px;
text-align: center;
}
.p{
font-family:华文楷体 ;
}
.h{
font-family: 华文楷体;
}
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