html+js实现注册页面及信息验证

一、代码<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,

_远方_

5867人浏览 · 2021-06-09 22:23:21

_远方_ · 2021-06-09 22:23:21 发布

一、代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>注册</title>
    <style>
        html{
            height: 100%;
            width: 100%;
            overflow: hidden;
            margin: 0;
            padding: 0;
            background: url(background.png) no-repeat 0px 0px;
            background-repeat: no-repeat;
            background-size: 100% 100%;
            -moz-background-size: 100% 100%;
        }
        body{
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100%;
            
        }
        input{
            border:none; border-bottom:1px solid rgb(10, 10, 10);
            width: 300px;
        }
        p{
            text-align: center;
            color: rgb(116, 113, 113);
        }
        .register{
            margin-top: 50px;
            width: 600px;
            /*display: flex;*/
            justify-content: center;
            align-items: center;
            text-align: center;
            height: 600px;
            background-color: white;
            box-shadow: 7px 7px 17px rgba(52, 56, 66, 0.5);
        }
        .d{
            margin-top: 50px;
            width: 300px;
            /*display: flex;*/
            justify-content: center;
            align-items: center;
            height: 600px;
            background-color: rgb(167, 150, 150);
            box-shadow: 7px 7px 17px rgba(52, 56, 66, 0.5);
        }
        .register_button {
            border-color: cornsilk;
            background-color: rgba(243, 202, 20, 0.7);
            color: aliceblue;
            border-style: hidden;
            border-radius: 15px;
            width: 190px;
            height: 31px;
            font-size: 16px;
        }
        .login_button{
            
            border: 20px solid white;
            border-radius: 50%;
           
            color: rgb(167, 150, 150);;
            border-style: hidden;
            border-radius: 15px;
            width: 100px;
            height: 31px;
            font-size: 16px;
            
        }
        .title{
            color: white;
            text-align: center;
        }         
    </style>
    <style type="text/css">
        input::-ms-input-placeholder{text-align: center;}
        input::-webkit-input-placeholder{text-align: center;}
    </style>
</head>

<body>
        <div class="register">
            <h3>立即注册</h3>
            <p >邮箱</p>
            <p><input type="text" id="email"></p>
            <p >用户名</p>
            <p><input type="text" placeholder="用户名长度不能超过5位" id="username"></p>
            <p> 性别</p>
            <p >
                <span>男</span>
                <span><input style="width: auto;" type="radio" name="sex" value="男" id="sex_man"></span>
                <span>女</span>
                <span><input style="width: auto;" type="radio" name="sex" value="女" id="sex_woman"></span>
                
            </p>
            <p >头像</p>
            <p><input type="file" id="img"></p>
            <p >密码</p>
            <p><input type="password" placeholder="密码长度至少为6位，且为数字和字母的组合" id="password1"></p>
            <p >确认密码</p>
            <p><input type="password" placeholder="两次密码需一致" id="password2"></p>
            <p><input type="button" class="register_button"  name="register" onclick="register_click()" value="注册"></input></p>
            <!--<p><button class="register_button" onclick="" name="register" onclick="register_click()">注册</button></p>-->
        </div>
        <div class="d">
            <br><br>
            <h3 class="title">已有账号？</h3>
            <p style="color: white;">已有账号就登录吧，好久不见！</p>
            <br><br><br><br><br><br><br><br><br><br><br><br>
            <p><button class="login_button" onclick="login_click()">登录</button></p>
        </div>
        <script>
            var flag1=true;  //邮箱判断标识符
            var flag2=true;  //用户名判断标识符
            var flag3=true;  //密码判断标识符

            //判断邮箱格式是否正确
            email.onchange=function(){
                var email=this.value;
                var emailPattern=/^[a-zA-Z0-9]{1,10}@[a-zA-Z0-9]{1,5}\.[a-zA-Z0-9]{1,5}$/;  //邮箱正则表达式
                if(!(emailPattern.test(email)) ){
                    alert("邮箱格式不对！");
                    flag1=false;
                }
                else{
                    flag1=true;
                }
                
            }

            //判断用户名格式是否正确
            username.onchange=function(){
                var username=this.value;
                var usernamePattern = /^\S{1,5}$/;  //用户名正则表达式
                if(!usernamePattern.test(username) ){
                    alert("用户名格式不对，不能超过五个字符！")
                    flag2=false;
                }
                else{
                    flag2=true;
                }
                
            }

            //判断密码格式是否正确
            password1.onchange=function(){
                var password1=this.value;
                var passwordPattern =  /^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{6,}$/;  //密码正则表达式
                if(!passwordPattern.test(password1)){
                    alert("密码格式不对，长度至少为6位，且为数字和字母的组合");
                    flag3=false;
                }
                else{
                    flag3=true;
                }
                
            }
            //获取性别值
            function justify_sex(){
                var sex;
                if(document.getElementById("sex_man").checked){
                    sex=document.getElementById("sex_man").value;
                }
                else if(document.getElementById("sex_woman").checked){
                    sex=document.getElementById("sex_woman").value;
                }
                return sex;
            }
            //注册函数
            function register_click(){
                
                var username=document.getElementById("username").value;
                var password1=document.getElementById("password1").value;
                var password2=document.getElementById("password2").value;
                var email=document.getElementById("email").value;
                var sex=justify_sex();
                
                //localStory存储注册信息
                localStorage.setItem("username",username);
                localStorage.setItem("password",password1);
                localStorage.setItem("sex",sex);
                localStorage.setItem("email",email);
                
                //判断是否注册成功
                if (flag1 && flag2 && flag3 && password1!=''){
                    if(password1==password2){
                    alert("注册成功！");
                    window.location.href="login.html";
                    }
                    else{
                        alert("两次输入的密码不一样！");
                    }
                }
                else{
                    alert("信息格式不对，请输入正确的信息！")
                }
            }
            //登录函数
            function login_click(){
                window.location.href="login.html";
            }
        </script>
        
</body>
</html>