原生js验证简洁注册登录页面

2019-11-19 18:25:27

字体：大中小

来源：转载

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序

一个以js验证表单的简洁的注册登录页面，不多说直接上图

效果

主要文件

完整代码

1 sign_up.html 注册表单

<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>sign-up</title> <link rel="stylesheet" href="css/common_form.css"></head><body> <header> <div class="header-line"></div> </header> <div class="content"> <img class="content-logo" src="img/form_logo.png" alt="logo"> <h1 class="content-title">创建账户</h1> <div class="content-form">  <form method="post" action="" onsubmit="return submitTest()">  <div id="change_margin_1">   <input class="user" type="text" name="user" placeholder="请输入用户名" onblur="oBlur_1()" onfocus="oFocus_1()">  </div>  <!-- input的value为空时弹出提醒 -->  <p id="remind_1"></p>  <div id="change_margin_2">   <input class="password" type="password" name="password" placeholder="请输入密码" onblur="oBlur_2()" onfocus="oFocus_2()">  </div>  <!-- input的value为空时弹出提醒 -->  <p id="remind_2"></p>  <div id="change_margin_3">   <input class="content-form-signup" type="submit" value="创建账户">  </div>  </form> </div> <div class="content-login-description">已经拥有账户？</div> <div><a class="content-login-link" href="log_in.html">登录</a></div> </div><script src="js/common_form_test.js"></script></body></html>

2 log_in.html 登录表单

<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>log-in</title> <link rel="stylesheet" href="css/common_form.css"></head><body> <header> <div class="header-line"></div> </header> <div class="content"> <img class="content-logo" src="img/form_logo.png" alt="logo"> <h1 class="content-title">登录</h1> <div class="content-form">  <form method="post" action="" onsubmit="return submitTest()">  <div id="change_margin_1">   <input class="user" type="text" name="user" placeholder="请输入用户名" onblur="oBlur_1()" onfocus="oFocus_1()">  </div>  <!-- input的value为空时弹出提醒 -->  <p id="remind_1"></p>  <div id="change_margin_2">   <input class="password" type="password" name="password" placeholder="请输入密码" onblur="oBlur_2()" onfocus="oFocus_2()">  </div>  <!-- input的value为空时弹出提醒 -->  <p id="remind_2"></p>  <div id="change_margin_3">   <input class="content-form-signup" type="submit" value="登录">  </div>  </form> </div> <div class="content-login-description">没有账户？</div> <div><a class="content-login-link" href="sign_up.html">注册</a></div> </div><script src="js/common_form_test.js"></script></body></html>

3 common_form.css 表单css样式

/*重置样式*/html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr,acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody,tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header,hgroup, menu, nav, output, section, summary, time, mark, audio, video { margin: 0; padding: 0; border: 0}body { font-family: "微软雅黑"; background: #f4f4f4;}/*header*/.header-line { width: 100%; height: 4px; background: #0dbfdd;}/*content*/.content { width: 28%; margin: 70px auto 0; text-align: center;}.content-logo { width: 80px; height: 80px;}.content-title { margin: 10px 0 25px 0; font-size: 2em; color: #747474; font-weight: normal;}.content-form { width: 100%; padding: 36px 0 20px; border: 1px solid #dedede; text-align: center; background: #fff;}.content-form form div { margin-bottom: 19px;}.content-form form .user,.content-form form .password { width: 77%; height: 20px; padding: 10px; font-size: 1em; border: 1px solid #cccbcb; border-radius: 7px; letter-spacing: 1px;}.content-form form input:focus { outline: none; -webkit-box-shadow: 0 0 5px #0dbfdd;  box-shadow: 0 0 5px #0dbfdd;}.content-form-signup { width: 84%; margin: 0 auto; padding: 10px; border: 1px solid #cccbcb; border-radius: 7px; font-size: 1em; font-weight: bold; color: #fff; background: #0dbfdd; cursor: pointer;}.content-form-signup:hover { background: #0cb3d0;}.content-form-signup:focus { outline: none; border: 1px solid #0cb3d0;}.content-login-description { margin-top: 25px; line-height: 1.63636364; color: #747474; font-size: .91666667rem;}.content-login-link { font-size: 16px; color: #0dbfdd; text-decoration: none;}/*输入框无内容便提示*/#remind_1,#remind_2 { width: 76%; margin: 0 auto 2px; text-align: left; font-size: .2em; color: #f00;}

4 common_form_test.js 注册登录脚本

// 全局变量a和b，分别获取用户框和密码框的value值var a = document.getElementsByTagName("input")[0].value;var b = document.getElementsByTagName("input")[1].value;//用户框失去焦点后验证value值function oBlur_1() { if (!a) { //用户框value值为空 document.getElementById("remind_1").innerHTML = "请输入用户名！"; document.getElementById("change_margin_1").style.marginBottom = 1 + "px"; } else { //用户框value值不为空 document.getElementById("remind_1").innerHTML = ""; document.getElementById("change_margin_1").style.marginBottom = 19 + "px"; }}//密码框失去焦点后验证value值function oBlur_2() { if (!b) { //密码框value值为空 document.getElementById("remind_2").innerHTML = "请输入密码！"; document.getElementById("change_margin_2").style.marginBottom = 1 + "px"; document.getElementById("change_margin_3").style.marginTop = 2 + "px"; } else { //密码框value值不为空 document.getElementById("remind_2").innerHTML = ""; document.getElementById("change_margin_2").style.marginBottom = 19 + "px"; document.getElementById("change_margin_3").style.marginTop = 19 + "px"; }}//用户框获得焦点的隐藏提醒function oFocus_1() { document.getElementById("remind_1").innerHTML = ""; document.getElementById("change_margin_1").style.marginBottom = 19 + "px";}//密码框获得焦点的隐藏提醒function oFocus_2() { document.getElementById("remind_2").innerHTML = ""; document.getElementById("change_margin_2").style.marginBottom = 19 + "px"; document.getElementById("change_margin_3").style.marginTop = 19 + "px";}//若输入框为空，阻止表单的提交function submitTest() { if (!a && !b) { //用户框value值和密码框value值都为空 document.getElementById("remind_1").innerHTML = "请输入用户名！"; document.getElementById("change_margin_1").style.marginBottom = 1 + "px"; document.getElementById("remind_2").innerHTML = "请输入密码！"; document.getElementById("change_margin_2").style.marginBottom = 1 + "px"; document.getElementById("change_margin_3").style.marginTop = 2 + "px"; return false; //只有返回true表单才会提交 } else if (!a) { //用户框value值为空 document.getElementById("remind_1").innerHTML = "请输入用户名！"; document.getElementById("change_margin_1").style.marginBottom = 1 + "px"; return false; } else if (!b) { //密码框value值为空 document.getElementById("remind_2").innerHTML = "请输入密码！"; document.getElementById("change_margin_2").style.marginBottom = 1 + "px"; document.getElementById("change_margin_3").style.marginTop = 2 + "px"; return false; }}

5 form_logo.png Logo照片