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分享JS表单验证源码（带错误提示及密码等级）
网络编程 2024/11/14 佚名
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先晒图

分享JS表单验证源码（带错误提示及密码等级）

index.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Index</title>
 <link rel="stylesheet" href="css/style.css">
</head>
<body>
<!-- 头部 -->
<header>
 <div class="header-wrap">
 <!-- 左侧 -->
 <div class="header-left">
 <div class="logo">
 <img src="/UploadFiles/2021-04-02/logo.png">


style.css










label {
 cursor: pointer; }

a{
 color:inherit;
}

* {
 margin: 0;
 padding: 0;
 list-style: none;
 text-decoration: none;
 box-sizing: border-box; }

/*头部*/
header{
 width:100%;
 height:120px;
 background-color:rgb(239,239,239);
 border-bottom:2px solid rgb(36,135,201);
}

.header-wrap{
 width:1200px;
 margin:0 auto;
}

.header-wrap span,
.header-wrap img{
 cursor:pointer;
}

.header-wrap a:hover{
 color:rgb(251,116,3);
}
/*导航左侧*/
.header-left{
 float:left;
 width:500px;
}

.logo{
 float:left;
 width:100px;
 margin-right:28px;
}

.logo-text{
 float:left;
 width:300px;
 color:rgb(110,110,110);
 height: 120px;
 line-height: 120px;
}

.logo-text .strong{
 font-size: 20px;
 font-weight: bold;
 color: rgb(80,80,80);
}
/*导航右侧*/
.header-right{
 float:right;
 width:700px;
 height: 120px;
 line-height: 120px;
 padding-left:60px;
 position: relative;
}

.header-right img{
 width:14px;
}

.header-right span{
 margin-right:30px;
 float:left;
}

.show-nav{
 cursor:pointer;
 position: relative;
 z-index: 5;
 float:left;
}
/*隐藏区域*/
.hide_nav{
 display: none;
 position: absolute;
 width: 154px;
 background-color: #fff;
 border: 1px solid rgb(251,116,3);
 left: 0;
 font-size: 14px;
 top: 86px;
}

.show-nav:hover .hide_nav{
 display: block;
}

.hide_nav ul{
 width: 100%;
 padding: 0 10px;
}

.hide_nav ul li{
 line-height: 37px;
 height: 37px;
 width: 100%;
 color:rgb(110,110,110);
 cursor:pointer;
}

.hide_nav ul li:hover{
 color:rgb(251,116,3);
}
.line{
 border-bottom:1px dotted rgb(110,110,110);
}
.phone{
 margin-left:20px;
}
/*图标和文字垂直居中对齐*/
.phone img, .phone a{
 vertical-align:middle;
}
/*主体*/
.content{
 width:1200px;
 background: white;
 margin:0 auto;
 height: 1115px;
}

.title{
 margin-top:20px;
 margin-left:5px;
}

.title span{
 color:rgb(110,110,110);
}

.title span.strong{
 font-size: 20px;
 font-weight: bold;
 color: rgb(80,80,80);
}

#Total {
 box-shadow: 2px 2px 10px 1px rgba(0, 0, 0, 0.2);
 width: 1200px;
 min-height: 800px;
 margin: 30px auto;
 border-radius: 10px;
 overflow: hidden;
 border-left: 0.5px solid rgba(0, 0, 0, 0.32);
 border-right: 0.5px solid rgba(0, 0, 0, 0.32);
 border-bottom: 0.5px solid rgba(0, 0, 0, 0.32); 
}

#Total #Title {
 background: rgb(251,116,3);
 color: white;
 width: 100%;
 height: 50px;
 line-height: 50px;
 font-size: 20px;
 padding-left: 18px;
 margin-bottom: 60px; 
}

#Total .item, #Total .item_ {
 width: 90%;
 margin: 10px auto;
 font-size: 16px;
 font-weight: bold;
 position: relative; 
}

#Total .item.item, #Total .item_.item {
 margin-top: 25px; 
}


#Total .item .important, #Total .item_ .important {
 color: rgb(251,116,3);
 margin-left: 62px; 
}

#Total .item input, #Total .item_ input {
 position: absolute;
 width: 300px;
 height: 30px;
 top: 32%;
 left: 15%;
 margin-top: -20px;
 font-size: 15px;
 outline: none;
 border: 1px solid rgba(0, 0, 0, 0.2);
 transition: box-shadow .5s; 
}

#Total .item input:focus, #Total .item_ input:focus {
 box-shadow: 1px 1px 10px #6385d1, 1px 1px 10px #6385d1; 
}

#Total .item.item_, #Total .item_.item_ {
 height: 30px; 
 font-size: 15px;
 color: rgb(251,116,3);
 font-weight: lighter;
 margin: 0;
 display: inline-block;
 margin-left: 473px;
}

#Total .item_.item_{
 position: relative;
 top: -21px;
}

.item_ a{
 text-decoration: underline;
}

select{
 width: 297px;
 margin-left: 10px;
 height: 34px;
 font-size: 14px;
 color: rgb(110,110,110);
}

#first{
 display: inline-block;
 z-index: 5;
 position: relative;
 width:50px;
 height:10px;
 background-color: red;
 margin-left: 320px;
}

#second{
 display: inline-block;
 z-index: 5;
 position: relative;
 width:50px;
 height:10px;
 background-color: #ccc;
}

#third{
 display: inline-block;
 z-index: 5;
 position: relative;
 width:50px;
 height:10px;
 background-color: #ccc;
}

#Total #end {
 text-align: center;
 height: 160px;
 line-height: 50px;
 border-top: 1px solid rgba(0, 0, 0, 0.8);
 width: 100%;
}

#Total #end #choose {
 margin-right: 6px; 
}

.btn_box{
 margin-top:20px;
}

#Total #end #handup {
 width: 197px;
 height: 30px;
 border: none;
 background: rgb(251,116,3);
 color: white;
 border-radius: 3px;
 margin-left: 10px; 
 cursor: pointer;
}

#Total #end #handup:hover{
 background: rgb(36,135,201);
}

#end a{
 color:rgb(36,135,201);
}
/*隐藏的姓名规则*/
.hide_div{
 position: absolute;
 width: 531px;
 font-size: 13px;
 left: 558px;
 border: 1px solid rgb(36,135,201);
 padding: 20px;
 line-height: 35px;
 top: 21px;
 color: rgb(110,110,110);
 display: none;
}

#show_div:hover+.hide_div{
 display: block;
}

/*底部*/
footer{
 height: 113px;
 background: #eee;
 text-align: center;
 padding: 40px;
 color: rgb(110,110,110);
 border-top:2px solid rgb(36,135,201);
}





index.js







//获取元素
var userAccount=document.getElementById('userAccount');
var userPass=document.getElementById('userPass');
var userPass_=document.getElementById('userPass_');
var userName=document.getElementById('userName');
var information=document.getElementById('information');
var email=document.getElementById('email');
var telephone=document.getElementById('telephone');
var handup=document.getElementById('handup');
var first=document.getElementById('first');
var second=document.getElementById('second');
var third=document.getElementById('third');
var choose=document.getElementById('choose');
var items=document.querySelectorAll(".item_");//获取所有提示元素的下标
//当鼠标离开输入框，产生验证
//格式正确 true
var test1=false;
var test2=false;
var test3=false;
var test4=false;
var test5=false;
var test6=false;
var test7=false;

//验证用户名
userAccount.onblur=function(){
 var reg=/^[a-zA-Z]{1}\w{5,29}$/;
 if(this.value==''){
 items[0].innerHTML='用户名不能为空';
 items[0].style.color='red';
 test1=false;
 }else{
 if(!reg.exec(userAccount.value)){
 items[0].innerHTML='6-30位字母、数字或“_”，字母开头';
 items[0].style.color='red';
 test1=false;
 }else{
 items[0].innerHTML='用户输入正确';
 items[0].style.color='green';
 test1=true;
 }
 }
}
//验证密码
userPass.onblur=function(){
 //默认样式
 first.style.backgroundColor='red';
 second.style.backgroundColor='#ccc';
 third.style.backgroundColor='#ccc';
 //匹配6-20位任意字符
 var reg=/^\S{6,20}$/;
 if(this.value==''){
 items[1].innerHTML='密码不能为空';
 items[1].style.color='red';
 test2=false;
 }else{
 if(!reg.exec(userPass.value)){//不符合要求
 items[1].innerHTML='请输入6-20位数字、字母或符号';
 items[1].style.color='red';
 test2=false;
 }else{
 items[1].innerHTML='';
 test2=true;
 checkPwd(this.value);
 }
 }
}
//密码强度弱，只匹配数字、字母或符号
var pattern1=/^[0-9]{6,20}$|^[a-zA-Z]{6,20}$|^\W{6,20}$/;
//密码强度中，两两组合
var pattern2=/^[0-9|a-zA-Z]{6,20}$|^[\W|a-zA-Z]{6,20}$|^[\W|0-9]{6,20}$/;
//密码强度高，数字、字母或符号三种组合
var pattern3=/\W[0-9a-zA-Z]*/;
//验证密码强弱的函数
function checkPwd(value){
 if(pattern1.test(value)){//密码强度弱
 first.style.backgroundColor='red';
 second.style.backgroundColor='#ccc';
 third.style.backgroundColor='#ccc';
 }else if(pattern2.test(value)){//密码强度中
 first.style.backgroundColor='red';
 second.style.backgroundColor='rgb(251,116,3)';
 third.style.backgroundColor='#ccc';
 }else if(pattern3.test(value)){//密码强度高
 first.style.backgroundColor='red';
 second.style.backgroundColor='rgb(251,116,3)';
 third.style.backgroundColor='green';
 }
}
//再次验证密码
userPass_.onblur=function(){
 if(this.value==''){
 items[2].innerHTML='密码不能为空';
 items[2].style.color='red';
 test3=false;
 }else{
 if(this.value!=userPass.value){
 items[2].innerHTML='两次密码输入不一致';
 items[2].style.color='red';
 test3=false;
 }else{
 items[2].innerHTML='两次输入一致';
 items[2].style.color='green';
 test3=true;
 }
 }
}
//验证姓名
userName.onblur=function(){
 var reg=/^[\u4e00-\u9fa5|a-zA-Z]{3,30}$/;
 if(this.value==''){
 items[3].innerHTML='姓名不能为空';
 items[3].style.color='red';
 test4=false;
 items[3].id='show_div';
 }else{
 if(reg.exec(userName.value)){
 items[3].innerHTML='姓名输入正确';
 items[3].style.color='green';
 test4=true;
 items[3].id='';//输入正确时不再提示信息
 }else{
 items[3].innerHTML='姓名只能包含中文或者英文，且字符在3-30个之间！';
 items[3].style.color='red';
 test4=false;
 items[3].id='show_div';
 }
 }
}
//验证身份证号
information.onblur=function(){
 var reg=/^\d{17}[0-9x]$/i;
 if(this.value==''){
 items[4].innerHTML='证件号码不能为空';
 items[4].style.color='red';
 test5=false;
 }else{
 if(!reg.exec(information.value)){
 items[4].innerHTML='请输入18位身份证号码';
 items[4].style.color='red';
 test5=false;
 }else{
 items[4].innerHTML='号码输入正确';
 items[4].style.color='green';
 test5=true;
 }
 }
}
//验证邮箱
email.onblur=function(){
 var reg=/^\w+@\w+.[a-zA-Z_]{2,4}$/;
 if(this.value==''){
 items[5].innerHTML='邮箱不能为空';
 items[5].style.color='red';
 test6=false;
 }else{
 if(!reg.exec(email.value)){
 items[5].innerHTML='请输入正确的邮箱';
 items[5].style.color='red';
 test6=false;
 }else{
 items[5].innerHTML='邮箱格式正确';
 items[5].style.color='green';
 test6=true;
 }
 }
}
//验证手机号
telephone.onblur=function(){
 var reg=/^1(3|4|5|6|7|8|9)\d{9}$/;
 if(this.value==''){
 items[6].innerHTML='手机号码不能为空';
 items[6].style.color='red';
 test7=false;
 }else{
 if(!reg.exec(telephone.value)){
 items[6].innerHTML='您输入的手机号码不是有效的格式！';
 items[6].style.color='red';
 test7=false;
 }else{
 items[6].innerHTML='手机格式正确';
 items[6].style.color='green';
 test7=true;
 }
 }
}
//点击下一步
handup.onclick=function(){
 if(test1&&test2&&test3&&test4&&test5&&test6&&test7&&choose.checked){
 location.href="http://www.imooc.com"; 
 }else{
 alert('填写有误！');
 }
}







再送一个简易版的


放图


分享JS表单验证源码（带错误提示及密码等级）


index.html







<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Index</title>
 <link rel="stylesheet" href="css/style.css">
</head>
<body>
<div id="Total">
 <div id="Title">-- 账户信息 --</div>
 <div class="item">
 <span class="important">*</span>
 <label for="userAccount">用户名 :</label>
 <input type="text" id="userAccount" placeholder=" 用户设置成功后不可修改">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="userPass">登陆密码 :</label>
 <input type="password" id="userPass" placeholder=" 6-20位字母,数字或符号">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="userPass_">确认密码 :</label>
 <input type="password" id="userPass_">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="userName">姓名 :</label>
 <input type="text" id="userName" placeholder=" 请输入姓名,中文且最多五位">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="information">身份证号 :</label>
 <input type="text" id="information" placeholder=" 请输入身份证号">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="email">邮箱 :</label>
 <input type="email" id="email" placeholder=" 请输入正确邮箱格式">
 </div>
 <p class="item_"></p>
 <br>
 <!--_____________________________________________________________________________________________-->
 <div class="item">
 <span class="important">*</span>
 <label for="telephone">手机号码 :</label>
 <input type="tel" id="telephone" placeholder=" 请输入您的手机号码">
 </div>
 <p class="item_"></p>
 <br>
 <!--__________________________________________________________________________________________________-->
 <div id="end">
 <input type="checkbox" id="choose">
 <label for="choose">我已阅读并同意遵守规定</label>
 <button id="handup">确认提交</button>
 </div>
</div>
</body>
</html>
<script src="/UploadFiles/2021-04-02/test.js">




test.js







var userAccount = document.querySelector("#userAccount"),//获取用户名
 userPass = document.querySelector("#userPass"),//获取密码
 userPass_ = document.querySelector("#userPass_"),//获取确认密码
 userName = document.querySelector("#userName"),//获取姓名
 information = document.querySelector("#information"),//获取身份证号码
 email = document.querySelector("#email"),//获取邮箱号码
 telephone = document.querySelector("#telephone"),//获取手机号码
 items = document.querySelectorAll(".item_"),//获取所有提示文段的下标
 aCho = document.querySelector("#choose"), oBtn = document.querySelector("#handup");
var test1 = false, test2 = false, test3 = false, test4 = false, test5 = false, test6 = false, test7 = false
 ;
userAccount.onfocus = function () {
 items[0].innerHTML = "6-30位字母、数字或'_'";
 items[0].style.color = "green";
};
userAccount.onblur = function () {
 var reg = /^\w{6,30}$/;
 if (this.value == "") {
 items[0].innerHTML = "请您务必写入用户名!";
 items[0].style.color = "red";
 } else {
 if (!reg.exec(userAccount.value)) {
 items[0].innerHTML = "6-30位字母、数字或'_'";
 items[0].style.color = "red";
 } else {
 items[0].innerHTML = "格式正确";
 items[0].style.color = "green";
 test1 = true;
 }
 }
};
//-------------------------------------------------------------账号结束;
userPass.onfocus = function () {
 items[1].innerHTML = "6-20位字母,数字或符号";
 items[1].style.color = "green";
};
userPass.onblur = function () {
 var reg = /^\w{6,20}$/;
 if (this.value == "") {
 items[1].innerHTML = "请您务必写入密码!";
 items[1].style.color = "red";
 } else {
 if (!reg.exec(userPass.value)) {
 items[1].innerHTML = "请输入6-20位字母,数字或符号";
 items[1].style.color = "red";
 } else {
 items[1].innerHTML = "格式正确";
 items[1].style.color = "green";
 test2 = true;
 }
 }
};
/*------------------------------------------------------------------密码结束*/
userPass_.onfocus = function () {
 items[2].innerHTML = "请确认两次密码相同";
 items[2].style.color = "green";
};
userPass_.onblur = function () {
 if (this.value == "") {
 items[2].innerHTML = "请务必再次确认密码";
 items[2].style.color = "red";
 } else {
 if (this.value != userPass.value) {
 items[2].innerHTML = "两次密码不相同";
 items[2].style.color = "red";
 } else {
 items[2].innerHTML = "格式正确";
 items[2].style.color = "green";
 test3 = true;
 }
 }
};
/*-----------------------------------------------------------------------确认密码结束*/
userName.onfocus = function () {
 items[3].innerHTML = "请输入您的中文名字";
 items[3].style.color = "green";
};
userName.onblur = function () {
 var reg = /^[\u4e00-\u9fa5]{2,5}$/;
 if (this.value == "") {
 items[3].innerHTML = "请务必写入您的姓名";
 items[3].style.color = "red";
 } else {
 if (!reg.exec(userName.value)) {
 items[3].innerHTML = "请输入中文名并确认是正确格式";
 items[3].style.color = "red";
 } else {
 items[3].innerHTML = "格式正确";
 items[3].style.color = "green";
 test4 = true
 }
 }
};
//---------------------------------------------------------------------------------姓名结束
information.onfocus = function () {
 items[4].innerHTML = "请输入您的身份证号码";
 items[4].style.color = "green";
};
information.onblur = function () {
 var reg = /^\d{17}[0-9x]$/;
 if (this.value == "") {
 items[4].innerHTML = "请您务必写入身份证号码!";
 items[4].style.color = "red";
 } else {
 if (!reg.exec(information.value)) {
 items[4].innerHTML = "请输入身份证号码正确格式";
 items[4].style.color = "red";
 } else {
 items[4].innerHTML = "格式正确";
 items[4].style.color = "green";
 test5 = true;
 }
 }
};
//------------------------------------------------------------------------身份证号码结束
email.onfocus = function () {
 items[5].innerHTML = "请输入您邮箱的正确格式";
 items[5].style.color = "green";
};
email.onblur = function () {
 var reg = /^\w+@\w+.[a-zA-Z]{2,3}(.[a-zA-Z]{2,3})"") {
 items[5].innerHTML = "请您务必写入邮箱!";
 items[5].style.color = "red";
 } else {
 if (!reg.exec(email.value)) {
 items[5].innerHTML = "请输入邮箱正确格式";
 items[5].style.color = "red";
 } else {
 items[5].innerHTML = "格式正确";
 items[5].style.color = "green";
 test6 = true;
 }
 }
};
//----------------------------------------------------------------------邮箱结束
telephone.onfocus = function () {
 items[6].innerHTML = "请输入您的手机号码";
 items[6].style.color = "green";
};
telephone.onblur = function () {
 var reg = /^\d{11}$/;
 if (this.value == "") {
 items[6].innerHTML = "请输入11位手机号码!";
 items[6].style.color = "red";
 } else {
 if (!reg.exec(telephone.value)) {
 items[6].innerHTML = "请输入11位手机号码";
 items[6].style.color = "red";
 } else {
 items[6].innerHTML = "格式正确";
 items[6].style.color = "green";
 test7 = true;
 }
 }
};
oBtn.onclick = function () {
 if (aCho.checked == false || test1 == false || test2 == false || test3 == false || test4 == false || test5 == false
 || test6 == false || test7 == false) {
 alert(" 您 的 信 息 有 误 ")
 } else {
 alert(" 登 记 成 功 ! ")
 }
};





总结


以上是小编给大家分享JS表单验证源码（带错误提示及密码等级），希望对大家有所帮助！
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3月20日消息，近期博主@数码闲聊站 透露，原定三月份发布的华为新旗舰P70系列延期发布，预计4月份上市。

而博主@定焦数码 爆料，华为的P70系列在定位上已经超过了Mate60，成为了重要的旗舰系列之一。它肩负着重返影像领域顶尖的使命。那么这次P70会带来哪些令人惊艳的创新呢？

根据目前爆料的消息来看，华为P70系列将推出三个版本，其中P70和P70 Pro采用了三角形的摄像头模组设计，而P70 Art则采用了与上一代P60 Art相似的不规则形状设计。这样的外观是否好看见仁见智，但辨识度绝对拉满。

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