646 案例全选表格 and647 表单校验

标签：function password and647 cbs getElementById 全选 646 var document

全选表格、

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格全选</title>
    <style>
        table{
            border: 1px solid;
            width: 500px;
            margin-left: 30%;
        }

        td,th{
            text-align: center;
            border: 1px solid;
        }
        div{
            margin-top: 10px;
            margin-left: 30%;
        }

        .over{
            background-color: pink;
        }
        .out{
            background-color: white;
        }
    </style>

    <script>

        window.onload  = function(){
            document.getElementById("selectAll").onclick = function(){
                var cbs = document.getElementsByName("cb");
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = true;
                }

            }

            document.getElementById("unSelectAll").onclick = function(){
                var cbs = document.getElementsByName("cb");
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = false;
                }

            }

            document.getElementById("selectRev").onclick = function(){
                var cbs = document.getElementsByName("cb");
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = !cbs[i].checked
                }

            }


            document.getElementById("firstcb").onclick = function(){
                var cbs = document.getElementsByName("cb");
                var firstcb = document.getElementById("firstcb");
                for (var i = 0; i < cbs.length; i++) {
                    cbs[i].checked = firstcb.checked;
                }

            }

            var trs = document.getElementsByTagName("tr");
            for (var i = 0; i < trs.length; i++) {
                trs[i].onmouseover = function(){
                    this.className = "over"
                }

                trs[i].onmouseout = function(){
                    this.className = "out"
                }

            }

        }

    </script>

</head>
<body>

<table>
    <caption>学生信息表</caption>
    <tr>
        <th><input type="checkbox" name="cb" id="firstcb"></th>
        <th>编号</th>
        <th>姓名</th>
        <th>性别</th>
        <th>操作</th>
    </tr>

    <tr>
        <td><input type="checkbox" name="cb"></td>
        <td>1</td>
        <td>令狐冲</td>
        <td>男</td>
        <td><a href="javascript:void(0);">删除</a></td>
    </tr>

    <tr>
        <td><input type="checkbox" name="cb"></td>
        <td>2</td>
        <td>任我行</td>
        <td>男</td>
        <td><a href="javascript:void(0);">删除</a></td>
    </tr>

    <tr>
        <td><input type="checkbox" name="cb"></td>
        <td>3</td>
        <td>岳不群</td>
        <td>?</td>
        <td><a href="javascript:void(0);">删除</a></td>
    </tr>

</table>
<div>
    <input type="button" id="selectAll" value="全选">
    <input type="button" id="unSelectAll" value="全不选">
    <input type="button" id="selectRev" value="反选">
</div>
</body>
</html>

表单校验

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>
    <style>
        * {
            margin: 0px;
            padding: 0px;
            box-sizing: border-box;
        }

        body {
            background: url("#") 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;
        }

        #td_sub{
            padding-left: 150px;
        }

        .error{
            color:red;
            vertical-align: middle;
        }
    </style>
    <script>
        window.onload = function(){
            document.getElementById("form").onsubmit = function(){
                //验证用户名
                //验证密码
                //...
                //都成功则返回true
                //
                return checkUsername() && checkPassword();
            }

            document.getElementById("username").onblur = checkUsername;
            document.getElementById("password").onblur = checkPassword;
        }

        function checkUsername(){
            var username = document.getElementById("username").value;
            var reg_username = /^\w{6,12}$/;
            var flag = reg_username.test(username);
            var s_username = document.getElementById("s_username");
            if(flag){
                s_username.innerHTML = "<img height='25' width='35' src='img/gou.png'>"
            }else{
                s_username.innerHTML = "用户名格式有误";
            }
            return flag;
        }

        function checkPassword(){
            var password = document.getElementById("password").value;
            var reg_password = /^\w{6,12}$/;
            var flag = reg_password.test(password);
            var s_password = document.getElementById("s_password");
            if(flag){
                s_password.innerHTML = "<img height='25' width='35' src='img/gou.png'>"
            }else{
                s_password.innerHTML = "密码格式有误";
            }
            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"></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"></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"></td>
                    </tr>

                    <tr>
                        <td class="td_left"><label>性别</label></td>
                        <td class="td_right">
                            <input type="radio" name="gender" value="male"> 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>

标签：function,password,and647,cbs,getElementById,全选,646,var,document
From： https://www.cnblogs.com/agzq/p/16843270.html

646 案例全选表格 and647 表单校验

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