下面是我的登陆页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>VIP用户登陆</title>
</head>
<body>
<br>
<br>
<?php
echo $_COOKIE['cautionWord'];
?>
<br>
<br>
<form name="loginForm" method="post" action="corePage.php" onsubmit="return checkUser()" >
用户名：<input type="text" name="loginName"><br><br>
密码：   <input type="password" name="userPassword"><br><br>
<input type="button" value="注册" onclick="register()" style="width:60px;height:30px" >         
<input type="submit" value="登陆" style="width:60px;height:30px">
</form>
<script>
function checkUser() {
//var check=true;
var userName=document.getElementsByName('loginName')[0];
var passWord=document.getElementsByName('userPassword')[0];
if (userName.value==""){
alert('请先填写用户名');
return false;
}
if(passWord.value==""){
alert('请填写密码')
return false;
}
document.cookie='userName='+userName.value+';path=/';
document.cookie='passWord='+passWord.value+';path=/';
document.cookie='cautionWord="";path=/';
}
function register(){
window.location.href='./register.php'
document.cookie='cautionWord="";path=/';
}
</script>
</body>
</html>
从上面点击了‘注册’按钮后可以正常跳转到下面的注册页面：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>VIP用户注册</title>
</head>
<body>
<form name="registerForm" onsubmit="return isRight()" action="inputUser.php" method="get">
填写用户名：<input type="text" name="userName" ><br><br>
请填写密码：<input type="text" name="userPassword1"><br><br>
请重复密码：<input type="text" name="userPassword2"><br><br>
请选择年龄：<input type="number" name="userAge" min="1" max="120" step="1"><br><br>
请选择性别：<input type="radio" name="userSex" value="male">男性   
<input type="radio" name="userSex" value="female">女性<br><br>
<input type="reset" value="重写" width=60 length=30>     
<input type="submit" value="提交" width=60 length=30>
</form>
<script>
function isRight(){
var userName=document.getElementsByName('userName')[0];
var userPassword1=document.getElementsByName('userPassword1')[0];
var userPassword2=document.getElementsByName('userPassword2')[0];
var userAge=document.getElementsByName('userAge')[0];
var userSex=document.getElementsByName('userSex')
if (userName.value==""||userPassword1.value==""||userPassword2.value==""||userAge.value==''){
alert('全部都要填写哦');
return false;
}
if(userPassword1.value != userPassword2.value){
alert('密码请保持一致');
return false;
}
var isCheckedSex=0;
for(m=0;m<userSex.length;m++){
if(userSex[i].checked){
isCheckedSex=1;
}
}
if(isCheckedSex==0){
return false;
alert('请选择性别')
}
}
</script>
</body>
</html>
然而，注册页面填好提交后，居然返回到注册页面了。让人匪夷所思！
