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html5表单验证美化综合案例

程序员文章站 2022-03-26 22:54:06
用到的事件: oninput 在值发生变化时立马触发 oninvalid 在不符合验证的时候触发 onchange 虽然触发值会发生变化,但不是立刻触发,要鼠标失去焦点时才能触发 onfocus 在获得焦点的时候触发 效果图

用到的事件:

oninput  在值发生变化时立马触发

oninvalid  在不符合验证的时候触发

onchange  虽然触发值会发生变化,但不是立刻触发,要鼠标失去焦点时才能触发

onfocus  在获得焦点的时候触发

 

效果图

html5表单验证美化综合案例

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>form</title>
    <style>
        .container{margin:100px;font-size:14px;position: relative;}
        .item{position: relative;width:250px;height:40px;}
        input,select{width:250px;height:20px;line-height:20px;border-radius: 4px;border:1px solid #999;color:#999;margin-bottom:10px;padding:5px;position: absolute;left:66px;}
        .item label{position: absolute;left:0;top:5px;}
        select{height:30px;width:260px;}
        input[type=submit]{height:30px;line-height:20px;position:absolute;left:0;}
        input:required,select:required{background:url(img/star.jpg) 90% center no-repeat;}
        input:required:valid,select:required:valid{background:url(img/right.png) 90% center no-repeat;box-shadow:0 0 5px green;border:1px solid green;}
        input:focus:invalid,select:focus:invalid{background:url(img/error.png) 90% center no-repeat;box-shadow:0 0 5px red;border:1px solid red;}
    </style>
</head>
<body>
    <div class="container">
        <form action="#">
            <div class="item">
                <label for="tel">手机号</label>
                <input type="tel" id="tel" placeholder="请输入手机号码" required pattern="^1[0-9]{10}$" oninput="this.setcustomvalidity('')" oninvalid="this.setcustomvalidity('请输入正确手机号哈')">
            </div>
            <div class="item">
                <label for="password">密码</label>
                <input type="password" id="password" placeholder="6-20位" required pattern="^[a-za-z0-9]\w{5,19}$" oninput="this.setcustomvalidity('')" oninvalid="this.setcustomvalidity('请输入正确密码哈')" onchange="checkpwd()">
            </div>
            <div class="item">
                <label for="repassword">确认密码</label>
                <input type="password" id="repassword" placeholder="确认密码" required oninput="this.setcustomvalidity('')" oninvalid="this.setcustomvalidity('请输入正确密码哈')" onchange="checkpwd()">
            </div>
            <div class="item">
                <label for="choose">了解方式</label>
                <select name="choose" id="choose" required>
                    <option value="">--请选择--</option>
                    <option value="">选项一</option>
                    <option value="">选项二</option>
                    <option value="">选项三</option>
                </select>
            </div>
            <input type="submit" value="提交">
        </form>
    </div>
    <script>
        function checkpwd(){
            if(password.value != repassword.value){
                repassword.setcustomvalidity("两次密码输入不一致哎");
            }else{
                repassword.setcustomvalidity("");
            }
        }
    </script>
</body>
</html>