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首先引入

<script src="http://static.runoob.com/assets/jquery-validation-1.14.0/lib/jquery.js"></script>
<script src="http://static.runoob.com/assets/jquery-validation-1.14.0/dist/jquery.validate.min.js"></script>
<script src="http://static.runoob.com/assets/jquery-validation-1.14.0/dist/localization/messages_zh.js"></script>

以laravel 模板为例

<form action="{{route('admin.user.add')}}" method="post" class="layui-form" id="form-user-add">
                @csrf
                <div class="layui-form-item">
                    <label  class="layui-form-label">
                        <span class="x-red">*</span>姓名</label>
                    <div class="layui-input-inline">
                        <input type="text"  name="tusername"  class="layui-input" value="{{old('tusername')}}"
{{--                               autocomplete="off"--}}
                        ></div>
                </div>
                <div class="layui-form-item">
                    <label  class="layui-form-label">
                        <span class="x-red">*</span>账号</label>
                    <div class="layui-input-inline">
                        <input type="text"  name="username"   class="layui-input" value="{{old('username')}}"
{{--                               autocomplete="off"--}}
                        ></div>
                    <div class="layui-form-mid layui-word-aux">
                        <span class="x-red">*</span>将会成为您唯一的登入名
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label"><span class="x-red">*</span>性别</label>
                    <div class="layui-input-block">
                        <input type="radio" name="sex" value="先生" lay-skin="primary" title="先生" checked="">
                        <input type="radio" name="sex" value="女士" lay-skin="primary" title="女士">
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label">
                        <span class="x-red">*</span>邮箱</label>
                    <div class="layui-input-inline">
                        <input type="email"name="email"  class="layui-input" value="{{old('email')}}">
                    </div>
                    <div class="layui-form-mid layui-word-aux">
                        <span class="x-red">*</span>忘记密码时使用邮箱重置密码
                    </div>
                </div>
                <div class="layui-form-item">
                    <label class="layui-form-label">
                        <span class="x-red">*</span>手机号</label>
                    <div class="layui-input-inline">
                        <input type="text" name="phone"  class="layui-input" value="{{old('phone')}}">
                    </div>
                </div>
                <div class="layui-form-item">
                    <label  class="layui-form-label">
                        <span class="x-red">*</span>密码</label>
                    <div class="layui-input-inline">
                        <input type="password"  name="password"   class="layui-input" id="password"></div>
                    <div class="layui-form-mid layui-word-aux">6到16个字符</div></div>
                <div class="layui-form-item">
                    <label  class="layui-form-label">
                        <span class="x-red">*</span>确认密码</label>
                    <div class="layui-input-inline">
                        <input type="password"  name="password_confirmation" class="layui-input"></div>
                </div>
                <div class="layui-form-item">
                    <label  class="layui-form-label"></label>
                    <button class="layui-btn">增加用户</button></div>
            </form>

 $('#form-user-add').validate({
        rules: {
            tusername: {
                required: true
            },
            username:{
                required: true,
            },
            phone:{
                phone:true
            },
            password: {
                required: true,
                rangelength:[5,10]
            },
            password_confirmation:{
                equalTo:"#password"
            }
        },
        messages: {
            tusername: {
                required: "真实姓名不能为空",
            },
            username: {
                required: "用户名不能为空"
            },
            password: {
                required: "密码不能为空",
                rangelength:"6到16个字符"
            },
            confirmation_password:{
                equalTo:"两次输入密码不一致"
            }
        },
        onKeyup:false,
        success:"valid",
        //验证通过后处理
        submitHandler:function (form) {
            form.submit();
        }
    });
    // 自定义验证手机号
    jQuery.validator.addMethod("phone", function(value, element) {
        var reg0 = /^\+86-1[3-9]\d{9}$/;
        var reg1 = /^1[3-9]\d{9}$/;
        var reg  = reg0.test(value) || reg1.test(value);
        return this.optional(element) || reg;
    }, "请正确填写您的手机号");