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sherlockforrest
177
Python-100-Days/Day21-30/form.html
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177
Python-100-Days/Day21-30/form.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title></title>
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<style>
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* {
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margin: 0;
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padding: 0;
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font-size: 18px;
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}
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#login label {
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display: inline-block;
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width: 150px;
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text-align: right;
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margin-right: 20px;
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}
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.formitem {
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margin: 20px 0;
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}
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.hint {
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display: inline-block;
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width: 320px;
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font-size: 14px;
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margin-left: 10px;
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}
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.correct {
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color: green;
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}
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.incorrect {
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color: red;
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}
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#login input[type="submit"] {
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display: inline-block;
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width: 120px;
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height: 30px;
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background-color: darkred;
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color: white;
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font-size: 20px;
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line-height: 30px;
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border: none;
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cursor: pointer;
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margin-left: 200px;
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}
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</style>
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</head>
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<body>
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<form id="login" action="" method="post">
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<div class="formitem">
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<label for="username">用户名: </label>
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<input type="text" id="username" name="username">
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<span id="uidHint" class="hint"></span>
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</div>
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<div class="formitem">
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<label for="password">密码: </label>
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<input type="password" id="password" name="password">
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<span id="pwdHint" class="hint"></span>
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</div>
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<div class="formitem">
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<label for="repassword">确认密码: </label>
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<input type="password" id="repassword">
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<span id="rePwdHint" class="hint"></span>
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</div>
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<div class="formitem">
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<label for="tel">手机号: </label>
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<input type="text" id="tel" name="tel">
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<span id="telHint" class="hint"></span>
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</div>
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<div class="formitem">
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<label for="code">验证码: </label>
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<input type="text" id="code" name="code" size="4">
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<input type="button" value="获取验证码">
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</div>
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<div class="formitem">
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<input type="submit" value="立即开通">
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</div>
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<div class="formitem">
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<label for="agreement"></label>
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<input type="checkbox" id="agreement">
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<span class="hint">我同意<a href="#">《XYZ服务协议》</a></span>
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</div>
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</form>
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<script src="js/mylib.js" ></script>
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<script>
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(function() {
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// 使用正则表达式的字面量语法创建正则表达式对象
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var uidRegEx = /^\w{6,20}$/;
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var pwdRegEx = /^.{8,20}$/;
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var telRegEx = /^1[345789]\d{9}$/;
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var uid = $('username');
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function checkUsername() {
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var uidHint = $('uidHint');
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var username = uid.value.trim();
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if (uidRegEx.test(username)) {
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uidHint.textContent = '√';
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uidHint.className = 'hint correct';
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return true;
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} else {
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uidHint.textContent = '用户名由字母数字下划线构成且长度为6-20个字符';
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uidHint.className = 'hint incorrect';
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return false;
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}
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}
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handleEvent(uid, 'blur', checkUsername);
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var pwd = $('password');
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function checkPassword() {
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var pwdHint = $('pwdHint');
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var password = pwd.value;
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if (pwdRegEx.test(password)) {
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pwdHint.textContent = '√';
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pwdHint.className = 'hint correct';
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return true;
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} else {
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pwdHint.textContent = '密码长度为8-20个字符';
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pwdHint.className = 'hint incorrect';
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return false;
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}
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}
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handleEvent(pwd, 'blur', checkPassword);
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var rePwd = $('repassword');
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function checkRepassword() {
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var rePwdHint = $('rePwdHint');
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var password = pwd.value;
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var repassword = rePwd.value;
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if (repassword.length == 0) {
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rePwdHint.textContent = '确认密码不能为空';
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rePwdHint.className = 'hint incorrect';
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return false;
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}
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if (repassword == password) {
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rePwdHint.textContent = '√';
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rePwdHint.className = 'hint correct';
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return true;
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} else {
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rePwdHint.textContent = '密码和确认密码不一致';
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rePwdHint.className = 'hint incorrect';
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return false;
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}
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}
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handleEvent(rePwd, 'blur', checkRepassword);
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var telInput = $('tel');
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function checkTel() {
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var telHint = $('telHint');
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var tel = telInput.value;
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if (telRegEx.test(tel)) {
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telHint.textContent = '√';
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telHint.className = 'hint correct';
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return true;
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} else {
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telHint.textContent = '请输入有效的手机号';
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telHint.className = 'hint incorrect';
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return false;
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}
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}
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handleEvent(telInput, 'blur', checkTel);
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var form = $('login') || document.forms[0];
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// 给表单对象绑定表单提交事件
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handleEvent(form, 'submit', function(evt) {
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evt = evt || window.event;
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// 阻止表单提交等到验证通过了之后手动提交表单
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evt.preventDefault();
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if (!$('agreement').checked) {
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alert('请先选中同意《XYZ服务协议》');
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return ;
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}
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// 请注意&&和&之间区别 前者有短路效果后者没有
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if (checkUsername() & checkPassword() &
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checkRepassword() & checkTel()) {
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var target = evt.target || evt.srcElement;
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// 如果所有表单数据验证都通过了就提交表单
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target.submit();
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}
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});
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}());
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</script>
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</body>
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</html>
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