uni-forms 如何校验 select (uni-data-select)

写在前面

其实校验规则一点也没变，只是第一次进入要把 select 绑定的值改为null

<uni-forms ref="form" :modelValue="valiFormData" :rules="rules">

			<uni-forms-item label="文件类型" required name="file_type">
				<uni-data-select v-model="valiFormData.file_type " :localdata="fileType" :clear="false"
					@change="bindFileChange"></uni-data-select>
			</uni-forms-item>
		</uni-forms>

// 校验表单数据
				valiFormData: {
					file_type: null
				},
				// 校验规则
				rules: {
					file_type: {
						rules: [{
							required: true,
							errorMessage: '请选择文件类型'
						}]
					}

				},
				fileType: [{
						value: 1,
						text: "原件"
					},
					{
						value: 2,
						text: "复印件"
					},
					{
						value: 3,
						text: "其他"
					}
				
				],

仅供参考

参考这位大佬写的文章，更为详细