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原始js---JavaScript注册用正则验证用户名密码手机号邮箱验证码
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注册文件 reg.html
<html>
<style>
#btn{
background-color: red;
color:white;
width: 235px;
}
span{
color: red;
}
</style>
<center>
<form action="doreg.php" method="post" >
<table>
<tr>
<td>用户名</td>
<td>
<input type="text" name="username" onblur="check_user()">
<span id='username'></span>
</td>
</tr>
<tr>
<td>密码</td>
<td>
<input type="password" name="pwd" onblur="check_pwd()">
<button onclick="return showpwd()">显示密码</button>
<span id='pwd'></span>
</td>
</tr>
<tr>
<td>确认密码</td>
<td><input type="password" name="repwd" onblur="check_repwd()">
<span id='repwd'></span>
</td>
</tr>
<tr>
<td>手机号</td>
<td>
<input type="text" name="tel" onblur="check_tel()">
<span id='tel'></span>
</td>
</tr>
<tr>
<td>验证码</td>
<td>
<input type="code" name="code">
<button onclick="return reflush()">刷新验证码</button>
<span id='code'></span>
</td>
</tr>
</table>
<input type="checkbox" name="agree">我已阅读并同意 <br>
<button id="btn" onclick="return checkall()">立即注册</button>
</form>
</center>
</html>
<script>
// 验证码
window.onload=function(){
reflush();
}
function reflush(){
var randnum = 1000+Math.floor(Math.random()*9000)
document.getElementById('code').innerHTML=randnum;
return false;
}
// 显示密码
function showpwd(){
node = document.getElementsByName('pwd')[0];
node.type = "text";
return false;
}
// 验证用户名
function check_user() {
var username = document.getElementsByName('username')[0].value;
var ptn_username = /^[(\u4e00-\u9fa5)||\w]{6,10}$/i;
if (!username.match(ptn_username)) {
document.getElementById('username').innerHTML='用户名格式不正确';
return false;
}
document.getElementById('username').innerHTML='';
return true;
}
// 验证密码
function check_pwd() {
var pwd = document.getElementsByName('pwd')[0].value;
var ptn_pwd = /^\w{6,10}$/i;
if (!pwd.match(ptn_pwd)) {
document.getElementById('pwd').innerHTML='密码格式不正确';
return false;
}
document.getElementById('pwd').innerHTML='';
return true;
}
// 两次密码一致
function check_repwd(){
var pwd = document.getElementsByName('pwd')[0].value;
var repwd = document.getElementsByName('repwd')[0].value;
if (pwd!=repwd) {
document.getElementById('repwd').innerHTML='两次密码不一致';
return false;
}
document.getElementById('repwd').innerHTML='';
return true;
}
// 验证手机号
function check_tel() {
var tel = document.getElementsByName('tel')[0].value;
var ptn_tel = /^1[35789]\d{9}$/i;
if (!tel.match(ptn_tel)) {
document.getElementById('tel').innerHTML='手机号格式不正确';
return false;
}
document.getElementById('tel').innerHTML='';
return true;
}
// 阅读协议
function check_agree(){
var flag = document.getElementsByName('agree')[0].checked;
if(!flag){
alert('请先阅读注册说明书');
}
return flag;
}
// 刷新产生验证码
function check_code(){
var code = document.getElementsByName('code')[0].value;
var span_code = document.getElementById('code').innerHTML;
if (!code) {
alert('请点击刷新生成验证码')
}
if (code!=span_code) {
alert('验证码不正确')
return false;
}
return true;
}
// 表单提交
function checkall(){
var check = check_code()&&check_user()&&check_pwd()&&check_repwd()&&check_tel()&&check_agree();
return check;
}
</script>
