143 lines
4.2 KiB
HTML
143 lines
4.2 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta charset="UTF-8">
|
||
<title>17-表单验证案例</title>
|
||
|
||
<link href="../css/register.css" rel="stylesheet">
|
||
</head>
|
||
<body>
|
||
|
||
<div class="form-div">
|
||
<div class="reg-content">
|
||
<h1>欢迎注册</h1>
|
||
<span>已有账号? </span> <a href="#">登录</a>
|
||
</div>
|
||
|
||
<form id="reg_form" action="#" method="post">
|
||
|
||
<table>
|
||
<tr>
|
||
<td align="center">用户名</td>
|
||
<td>
|
||
<input type="text" name="username" id="username">
|
||
<br>
|
||
<span id="username_err" class="err_msg" style="display: none">用户名不太受欢迎</span>
|
||
</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td align="center">密码</td>
|
||
<td>
|
||
<input type="text" name="password" id="password">
|
||
<br>
|
||
<span id="password_err" class="err_msg" style="display: none">密码格式不正确</span>
|
||
</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td align="center">手机号</td>
|
||
<td>
|
||
<input type="text" name="tel" id="tel">
|
||
<br>
|
||
<span id="tel_err" class="err_msg" style="display: none">用户名不太受欢迎</span>
|
||
</td>
|
||
</tr>
|
||
</table>
|
||
|
||
<div class="buttons">
|
||
<input type="submit" value="注 册" id="reg_btn">
|
||
</div>
|
||
<br class="clear">
|
||
</form>
|
||
</div>
|
||
|
||
|
||
<script>
|
||
|
||
//1.验证用户名是否符合规则
|
||
//1.1 获取用户名的输入框
|
||
var usernameInput = document.getElementById("username");
|
||
//1.2 绑定onblur事件 失去焦点
|
||
usernameInput.onblur = checkUsername;
|
||
|
||
function checkUsername() {
|
||
//1.3获取用户输入的用户名
|
||
var username = usernameInput.value.trim();
|
||
//1.4 判断用户名是否符合规则:长度 6~12
|
||
var reg=/^\w{6,12}$/;
|
||
var flag = reg.test(username);
|
||
if (flag) {
|
||
//符合规则
|
||
document.getElementById("username_err").style.display = "none";
|
||
} else {
|
||
//不符合规则
|
||
document.getElementById("username_err").style.display = "";
|
||
}
|
||
|
||
return flag;
|
||
}
|
||
|
||
//1.验证密码是否符合规则
|
||
//1.1 获取密码的输入框
|
||
var passwordInput = document.getElementById("password");
|
||
//1.2 绑定onblur事件 失去焦点
|
||
passwordInput.onblur = checkPassword;
|
||
|
||
function checkPassword() {
|
||
//1.3获取用户输入的密码
|
||
var password = passwordInput.value.trim();
|
||
//1.4 判断密码是否符合规则:长度 6~12,单词字符组成
|
||
var reg=/^\w{6,12}$/;
|
||
var flag=reg.test(password);
|
||
if (flag) {
|
||
//符合规则
|
||
document.getElementById("password_err").style.display = "none";
|
||
} else {
|
||
//不符合规则
|
||
document.getElementById("password_err").style.display = "";
|
||
}
|
||
return flag;
|
||
}
|
||
|
||
//1.验证手机号是否符合规则
|
||
//1.1 获取手机号的输入框
|
||
var telInput = document.getElementById("tel");
|
||
//1.2 绑定onblur事件 失去焦点
|
||
telInput.onblur = checkTel;
|
||
|
||
function checkTel() {
|
||
//1.3获取用户输入的手机号
|
||
var tel = telInput.value.trim();
|
||
//1.4 判断手机号是否符合规则:长度 11,数字组成，第一位是1
|
||
var reg=/^[1]\d{10}$/;
|
||
var flag=reg.test(tel);
|
||
if (flag) {
|
||
//符合规则
|
||
document.getElementById("tel_err").style.display = "none";
|
||
} else {
|
||
//不符合规则
|
||
document.getElementById("tel_err").style.display = "";
|
||
}
|
||
return flag
|
||
}
|
||
|
||
//表单提交验证
|
||
//1.获取表单对象
|
||
var regForm = document.getElementById("reg_form");
|
||
|
||
//2.绑定onsubmit事件
|
||
regForm.onsubmit = function () {
|
||
//挨个判断每一个表单相是否都符合要求，如果有一个不符合，则返回false
|
||
var flag = checkUsername() && checkPassword() && checkTel();
|
||
|
||
return flag;
|
||
|
||
}
|
||
|
||
|
||
</script>
|
||
|
||
|
||
</body>
|
||
</html> |