<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>注冊頁面</title>
</head>
<link rel="stylesheet" type="text/css" href="https://bbs.csdn.net/topics/css/index.css">
<body>
<div id="register">
<h1>用戶注冊</h1>
<form action="" method="post" name="form" onsubmit="return beforesb(this)" >
<span>賬號:</span>
<input type="text" name="uname"/>
<br>
<br>
<span>密碼:</span>
<input type="password" name="upwd"/>
<br>
<br>
<span>確認密碼:</span>
<input type="password" name="upwd2"/>
<br>
<br>
<input type="submit" value="https://bbs.csdn.net/topics/注冊">
<input type="reset" value="https://bbs.csdn.net/topics/重填">
</form>
</div>
</body>
<script type="text/javascript">
function beforesb(form){
if (form.uname.value == "") {
alert("賬號不能為空!");
form.uname.focus();
return false;
}
if (form.upwd.value == "") {
alert("密碼不能為空!");
form.upwd.focus();
return false;
}if (form.upwd.value.length < 6) {
alert("密碼不能小于六位!");
form.upwd.focus();
return false;
}if (form.upwd.value != form.upwd2.value) {
alert("兩次密碼輸入不一致");
form.upwd2.focus();
return false;
}
return true;
}
</script>
</html>
uj5u.com熱心網友回復:

要用英文的分號。
改下,如果還不行,F12看看控制臺報啥錯。
uj5u.com熱心網友回復:
剛剛開始學 不太熟悉 謝謝大佬
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