uniapp 表单使用Uview校验 包括城市选择器

<view>
			<!-- 注意，如果需要兼容微信小程序，最好通过setRules方法设置rules规则 -->
			<u--form labelPosition="left" :model="model1" :rules="rules" ref="uForm" labelWidth="174">

				<u-form-item label="身份选择" prop="userInfo.sex" borderBottom @click="showSex = true; " ref="item1">
					<u--input v-model="model1.userInfo.sex" disabled disabledColor="#ffffff" placeholder="请选择身份"
						border="none"></u--input>
					<u-icon slot="right" name="arrow-right"></u-icon>
				</u-form-item>
				<u-form-item label="真实姓名" prop="userInfo.name" borderBottom ref="item1">
					<u--input v-model="model1.userInfo.name" border="none" placeholder="请输入您的姓名"></u--input>
				</u-form-item>
				<u-form-item label="所在城市" prop="userInfo.city" borderBottom @click="show1 = true; " ref="item1">
					<u--input v-model="model1.userInfo.city" disabled disabledColor="#ffffff" placeholder="请选择所在城市"
						border="none">&l