完成登錄與注冊頁面的前端


完成登錄與注冊頁面的HTML+CSS+JS,其中的輸入項檢查包括:

用戶名6-12位

首字母不能是數字

只能包含字母和數字

密碼6-12位

注冊頁兩次密碼是否一致

登錄頁面HTML代碼如下:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登錄</title>
    <link rel="stylesheet" type="text/css" href="../static/css/xin.css">
    <script src="../static/js/dl.js"></script>


</head>
<body bgcolor="#ffe4c4">

<div class="box">
    <div id="tittle"><h2 align="center">登錄</h2></div>
    <p class="input_box">
        賬戶: <input id="uname" type="text" placeholder="請輸入您的賬戶">
    </p>
    <p class="input_box">
        密碼: <input id="upass" type="password" placeholder="請輸入您的號碼">
    </p>

    <div id="error_box"><br></div>
    <div class="button"><button onclick="foLogin()">登錄</button></div>
   <h4 align="center"> <a href="注冊.html">沒有賬號?點我啊</a></h4>

</div>

</body>
</html>

 

登錄頁面JS代碼如下:

function foLogin() {
            var oUname = document.getElementById("uname");
            var oError = document.getElementById("error_box");
            var oUpass = document.getElementById("upass");

            var isError = true;
            oError.innerHTML = "<br>";

            if (oUname.value.length < 6 || oUname.value.length > 12) {
                oError.innerHTML = "用戶名要6-12位";
                isError = false;
                return;
            }else if(oUname.value.charCodeAt(0)>=48 &&(oUname.value.charCodeAt(0)<=57)){
                oError.innerHTML="首位不能為數字";
                return;

            }else for (var i=0;i<oUname.value.length;i++){
               if((oUname.value.charCodeAt(i)<48)||(oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<58)&&(oUname.value.charCodeAt(i)>97)){
                oError.innerHTML="只能為數字和字母";
                return;
            }
            }
            if (oUpass.value.length < 6 || oUpass.value.length > 12) {
                oError.innerHTML = "密碼要6-12位";
                isError = false;
                return;
            }
        }

CSS代碼如下:

h2 {
    font-family: 宋體;
    font-size: 28px;
    text-align: center;
    background: #cccccc;
    margin-top: auto;
    height: 30px;
    width: 500px;
}
.box {
    border: 1px solid #000000;
    height: 370px;
    width: 500px;
    float: left;
    margin: 50px;
 margin-left: 30%;
}

.input_box{
    text-align: center;
    height: 30px;
    width: 500px;

}
input {
    align-self: center;
    height: 30px;
    width: 300px;
}

button{

    font-size: 22px;
    width: 360px;
    height: 30px;
    align-self: center;
   margin-bottom: auto;
   background: #cccccc;
margin-left: 15%;



}

注冊頁面html代碼如下:

<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注冊</title>
    <link rel="stylesheet" type="text/css" href="../static/css/xin.css">
    <script src="../static/js/5.js"></script>


</head>
<body bgcolor="#ffe4c4">

<div class="box">
    <div id="tittle"><h2 align="center">注冊</h2></div>
    <p class="input_box">
        賬戶: <input id="uname" type="text" placeholder="請輸入您的昵稱">
    </p>
    <p class="input_box">
        密碼: <input id="upass" type="password" placeholder="請設置您的密碼">
    </p>
    <p class="input_box">
       驗證:  <input id="upass1" type="password" placeholder="請再次輸入密碼">
    </p>
     <p class="input_box">
        郵箱: <input id="youxiang" type="password" placeholder="請輸入您的郵箱">
    </p>

    <div id="error_box"><br></div>
    <div class="button"><button onclick="foLogin()">立即注冊</button></div>
    <h4 align="center"> <a href="5.html">已有賬號請登錄</a></h4>


</div>

</body>
</html>

注冊頁面JS代碼如下:

function foLogin() {
            var oUname = document.getElementById("uname");
            var oError = document.getElementById("error_box");
            var oUpass = document.getElementById("upass");
            var oUpass1 = document.getElementById("upass1");
            var isError = true;
            oError.innerHTML = "<br>";

            if (oUname.value.length < 6 || oUname.value.length > 12) {
                oError.innerHTML = "用戶名要6-12位";
                isError = false;
                return;
            }else if(oUname.value.charCodeAt(0)>=48 &&(oUname.value.charCodeAt(0)<=57)){
                oError.innerHTML="首位不能為數字";
                return;


            }else for (var i=0;i<oUname.value.length;i++){
               if((oUname.value.charCodeAt(i)<48)||(oUname.value.charCodeAt(i)>57)&&(oUname.value.charCodeAt(i)<58)&&(oUname.value.charCodeAt(i)>97)){
                oError.innerHTML="只能為數字和字母";
                return;

            }}
            if (oUpass.value.length < 6 || oUpass.value.length > 12) {
                oError.innerHTML = "密碼要6-12位";
                isError = false;
                return;
            }else if(oUname.value!=oUpass1.value) {
                oError.innerHTML = "設置密碼和驗證密碼不一致";
                return;
            }
            }

運行結果如下:

 


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