下拉组件默认值

src/components/createCom/XhSelect.vue

@@ -8,7 +8,7 @@
 
 		<view class="u-flex u-row-between picker-common">
 			<picker mode="selector" :value="index" range-key="label" :range="settings" @click="show = true" @change="pickerChange" class="u-flex-1">
-				<view class="txt">{{text}}</view>
+				<view class="txt">{{text || '请选择'}}</view>
 			</picker>
 			<u-icon class="input-icon" color="#2272FF" :name="show ? 'arrow-up' : 'arrow-down'"></u-icon>
 		</view>
@@ -33,7 +33,8 @@
 		},
 		data() {
 			return {
-				show: false
+				show: false,
+				index: ''
 			}
 		},
 		computed: {
@@ -89,8 +90,8 @@
 				this.valueChange(id)
 			},
 			pickerChange(data) {
-				const index = data.detail.value
-				const id = this.item.fieldsOptions[index].key
+				this.index = data.detail.value
+				const id = this.item.fieldsOptions[this.index].key
 				this.dataValue = id
 				this.valueChange(id)
 			},

src/components/createCom/XhServiceMeasure.vue

@@ -8,7 +8,7 @@
 		<u-picker v-model="showPicker" range-key="label" @columnchange="columnchange" :mode="isNotMulti?'selector':'multiSelector'" @confirm="pickerConfirm" :range="settings"></u-picker> -->
 		<view class="u-flex u-row-between picker-common">
 			<picker :mode="isNotMulti?'selector':'multiSelector'" :value="index" range-key="label" :range="settings" @click="showPicker = true" @change="pickerChange" class="txt u-flex-1">
-				<view>{{text}}</view>
+				<view>{{text || '请选择'}}</view>
 			</picker>
 			<u-icon class="input-icon" color="#2272FF" :name="showPicker ? 'arrow-up' : 'arrow-down'"></u-icon>
 		</view>