代码如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>表单验证</title>
<style>
*{
margin: 0px;
padding: 0px;
box-sizing: border-box;
}
body{
background: url("img/register_bg.png") no-repeat center;
padding-top: 25px;
}
.rg_layout{
width: 900px;
height: 500px;
border: 8px solid #EEEEEE;
background-color: white;
/*让div水平居中*/
margin: auto;
}
.rg_left{
/*border: 1px solid red;*/
float: left;
margin: 15px;
}
.rg_left > p:first-child{
color:#FFD026;
font-size: 20px;
}
.rg_left > p:last-child{
color:#A6A6A6;
font-size: 20px;
}
.rg_center{
float: left;
/* border: 1px solid red;*/
}
.rg_right{
/*border: 1px solid red;*/
float: right;
margin: 15px;
}
.rg_right > p:first-child{
font-size: 15px;
}
.rg_right p a {
color:pink;
}
.td_left{
width: 100px;
text-align: right;
height: 45px;
}
.td_right{
padding-left: 50px ;
}
#username,#password,#email,#name,#tel,#birthday,#checkcode{
width: 251px;
height: 32px;
border: 1px solid #A6A6A6 ;
/*设置边框圆角*/
border-radius: 5px;
padding-left: 10px;
}
#checkcode{
width: 110px;
}
#img_check{
height: 32px;
vertical-align: middle;
}
#btn_sub{
width: 150px;
height: 40px;
background-color: #FFD026;
border: 1px solid #FFD026 ;
}
.error{
color:red;
}
#td_sub{
padding-left: 150px;
}
</style>
<script>
/*
分析：
1.给表单绑定onsubmit事件。监听器中判断每一个方法校验的结果。
如果都为true，则监听器方法返回true
如果有一个为false，则监听器方法返回false
2.定义一些方法分别校验各个表单项。
3.给各个表单项绑定onblur事件。
*/
window.onload = function () {
//1.给表单绑定onsubmit事件
document.getElementById("form").onsubmit = function () {
//调用用户校验方法 chekUsername();
//调用密码校验方法 chekPassword();
//return checkUsername() && checkPassword();
return checkUsername() && checkPassword() && checkEmaill() && checkName() && checkTel();
}
//给用户名和密码框分别绑定离焦事件
document.getElementById("username").onblur = checkUsername;
document.getElementById("password").onblur = checkPassword;
document.getElementById("email").onblur = checkEmail;
document.getElementById("name").onblur = checkName;
document.getElementById("tel").onblur = checkTel;
}
//校验用户名
function checkUsername() {
//1.获取用户名的值
var username = document.getElementById("username").value;
//2.定义正则表达式
var reg_username = /^\w{
6,12}$/;
//3.判断值是否符合正则的规则
var flag = reg_username.test(username);
//4.提示信息
var s_username = document.getElementById("s_username");
if(flag){
//提示绿色对勾
s_username.innerHTML = "<img width='35' height='25' src='img/gou.png'>";
}else{
//提示红色用户名有误
s_username.innerHTML = "用户格式有误";
}
return flag;
}
//校验密码
function checkPassword() {
//1.获取用户名的值
var password = document.getElementById("password").value;
//2.定义正则表达式
var reg_password = /^\w{
6,12}$/;
//3.判断值是否符合正则的规则
var flag = reg_password.test(password);
//4.提示信息
var s_password = document.getElementById("s_password");
if(flag){
//提示绿色对勾
s_password.innerHTML = "<img width='35' height='25' src='img/gou.png'>";
}else{
//提示红色用户名有误
s_password.innerHTML = "用户格式有误";
}
return flag;
}
//校验邮箱
function checkEmail() {
//1.获取用户名的值
var email = document.getElementById("email").value;
//2.定义正则表达式
var reg_email = new RegExp("[a-zA-Z0-9_-]+");
//3.判断值是否符合正则的规则
var flag = reg_email.test(email);
//4.提示信息
var s_email = document.getElementById("s_email");
if(flag){
//提示绿色对勾
s_email.innerHTML = "<img width='35' height='25' src='img/gou.png'>";
}else{
//提示红色用户名有误
s_email.innerHTML = "用户格式有误";
}
return flag;
}
//校验姓名
function checkName() {
//1.获取用户名的值
var name = document.getElementById("name").value;
//2.定义正则表达式
var reg_name = new RegExp("[\u4e00-\u9fa5]");
//3.判断值是否符合正则的规则
var flag = reg_name.test(name);
//4.提示信息
var s_name = document.getElementById("s_name");
if(flag){
//提示绿色对勾
s_name.innerHTML = "<img width='35' height='25' src='img/gou.png'>";
}else{
//提示红色用户名有误
s_name.innerHTML = "用户格式有误";
}
return flag;
}
//校验手机号
function checkTel() {
//1.获取用户名的值
var tel = document.getElementById("tel").value;
//2.定义正则表达式
var reg_tel = new RegExp("/^(\(\d{3,4}-)|\d{3.4}-)?\d{7,8}$/");
//3.判断值是否符合正则的规则
var flag = reg_tel.test(tel);
//4.提示信息
var s_tel = document.getElementById("s_tel");
if(flag){
//提示绿色对勾
s_tel.innerHTML = "<img width='35' height='25' src='img/gou.png'>";
}else{
//提示红色用户名有误
s_tel.innerHTML = "用户格式有误";
}
return flag;
}
</script>
</head>
<body>
<div class="rg_layout">
<div class="rg_left">
<p>新用户注册</p>
<p>USER REGISTER</p>
</div>
<div class="rg_center">
<div class="rg_form">
<!--定义表单 form-->
<form action="#" id="form" method="get">
<table>
<tr>
<td class="td_left"><label for="username">用户名</label></td>
<td class="td_right">
<input type="text" name="username" id="username" placeholder="请输入用户名">
<span id="s_username" class="error"></span>
</td>
</tr>
<tr>
<td class="td_left"><label for="password">密码</label></td>
<td class="td_right">
<input type="password" name="password" id="password" placeholder="请输入密码">
<span id="s_password" class="error"></span>
</td>
</tr>
<tr>
<td class="td_left"><label for="email">Email</label></td>
<td class="td_right">
<input type="email" name="email" id="email" placeholder="请输入邮箱">
<span id="s_email" class="error"></span>
</td>
</tr>
<tr>
<td class="td_left"><label for="name">姓名</label></td>
<td class="td_right">
<input type="text" name="name" id="name" placeholder="请输入姓名">
<span id="s_name" class="error"></span>
</td>
</tr>
<tr>
<td class="td_left"><label for="tel">手机号</label></td>
<td class="td_right">
<input type="text" name="tel" id="tel" placeholder="请输入手机号">
<span id="s_tel" class="error"></span>
</td>
</tr>
<tr>
<td class="td_left"><label>性别</label></td>
<td class="td_right">
<input type="radio" name="gender" value="male" checked> 男
<input type="radio" name="gender" value="female"> 女
</td>
</tr>
<tr>
<td class="td_left"><label for="birthday">出生日期</label></td>
<td class="td_right"><input type="date" name="birthday" id="birthday" placeholder="请输入出生日期"></td>
</tr>
<tr>
<td class="td_left"><label for="checkcode" >验证码</label></td>
<td class="td_right"><input type="text" name="checkcode" id="checkcode" placeholder="请输入验证码">
<img id="img_check" src="img/verify_code.jpg">
</td>
</tr>
<tr>
<td colspan="2" id="td_sub"><input type="submit" id="btn_sub" value="注册"></td>
</tr>
</table>
</form>
</div>
</div>
<div class="rg_right">
<p>已有账号?<a href="#">立即登录</a></p>
</div>
</div>
</body>
</html>