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+<template>
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+ <view class="wrapper" v-show="isShowMask">
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+ <transition name="content">
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+ <view class="content_view" v-show="isShow">
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+ <view class="title_view">
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+ <view class="title">请选择所在地区</view>
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+ <view class="close_view" @click="hidden">
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+ <icon class="close_icon" :type="'clear'" size="26"/>
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+ </view>
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+ </view>
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+ <view class="select_top">
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+ <view class="select_top_item" ref="select_top_item" v-for="(item,index) in dataList" :key="index" @click="select_top_item_click(index)">
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+ <text class="address_value">{{item}}</text>
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+ </view>
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+ <view class="indicator" :style="{ left: indicatorStyleLeft + 'px' }" ref="indicator"></view>
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+ </view>
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+ <swiper class="swiper" :current="currentIndex" @change="swiperChange">
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+ <swiper-item v-for="(swiper_item,swiper_index) in dataList" :key="swiper_index">
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+ <view class="swiper-item">
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+ <scroll-view class="scroll-view-item" scroll-y="true">
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+ <view class="address_item" v-for="(item,index) in cityAreaArray[swiper_index]" :key="index" @click="address_item_click(swiper_index,index)">
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+ <image v-if="selectIndexArr[swiper_index] === index" class="address_item_icon" src="@/static/img/gou.png" mode=""></image>
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+ {{item.name}}
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+ </view>
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+ </scroll-view>
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+ </view>
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+ </swiper-item>
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+ </swiper>
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+ </view>
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+ </transition>
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+ <view class="mask" @click="hidden" v-show="isShowMask"></view>
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+ </view>
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+</template>
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+
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+<script>
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+ import cityData from './data/city.json'
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+ export default {
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+ data() {
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+ return {
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+ isShow: false,
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+ isShowMask: false,
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+ dataList: ['请选择'],
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+ currentIndex: 0,
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+ cityData: {},
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+ cityAreaArray: [],
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+ selectIndexArr: [],
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+ indicatorStyleLeft: 16
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+ };
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+ },
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+ methods:{
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+ show(){
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+ this.isShow = true
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+ this.isShowMask = true
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+ },
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+ hidden() {
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+ this.isShow = false
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+ setTimeout(() => {
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+ this.isShowMask = false
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+ }, 500);
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+ },
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+ select_top_item_click(index) {
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+ // console.log('select_top_item_click')
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+ this.currentIndex = index
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+ this.$nextTick(() => {
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+ this.changeIndicator(index)
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+ })
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+
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+ },
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+ swiperChange(event){
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+ let index = event.detail.current
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+ this.currentIndex = index
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+
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+ this.changeIndicator(index)
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+ },
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+ changeIndicator(index){
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+
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+ /*
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+ let itemWidth = this.$refs.select_top_item[index].$children[0].$el.offsetWidth
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+ if (itemWidth > 80){
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+ itemWidth = 80
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+ }
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+ let itemCenterX = 10 + index * 80 + itemWidth / 2
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+ let indicatorWidth = this.$refs.indicator.$el.offsetWidth
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+ this.$refs.indicator.$el.style.left = itemCenterX - indicatorWidth / 2 + 'px'
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+ */
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+ let indicatorWidth = 30
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+ const query = uni.createSelectorQuery().in(this);
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+ let arr = query.selectAll('.select_top_item .address_value')
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+ arr.fields({
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+ size: true,
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+ scrollOffset: false
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+ }, data => {
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+
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+ let itemWidth = data[index]["width"] > 80 ? 70 : data[index]["width"]
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+ let itemCenterX = 10 + index * 80 + itemWidth / 2
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+ let left = itemCenterX - indicatorWidth / 2
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+
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+ // console.log('changeIndicator',itemWidth,index)
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+
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+ this.indicatorStyleLeft = left
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+
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+ }).exec();
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+
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+
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+ },
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+ address_item_click(swiper_index,index){
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+ // console.log(swiper_index,index)
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+ this.selectIndexArr.splice(swiper_index, 5,index)
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+
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+ //判断当前是否为最下一级
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+ if (swiper_index === 0){//第一级
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+
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+ let currentObj = this.cityData[index]
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+ let city = currentObj.name
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+ // console.log(city)
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+ this.dataList.splice(swiper_index,5,city)
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+ this.dataList.splice(swiper_index + 1,0,'请选择')
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+ this.cityAreaArray.splice(swiper_index + 1, 1,currentObj["city"])
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+ // console.log(this.dataList)
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+ setTimeout(() => {
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+ this.currentIndex = 1
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+ this.changeIndicator(1)
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+ }, 50);
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+
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+
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+ }else {
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+ let currentAreaArray = this.cityAreaArray[swiper_index]
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+ let currentObj = currentAreaArray[index]
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+ let area = currentObj["area"]
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+ // console.log(currentAreaArray)
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+ if (area !== undefined){
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+
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+ let city = currentObj.name
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+
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+ this.dataList.splice(swiper_index,5,city)
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+ this.dataList.splice(swiper_index + 1,0,'请选择')
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+ this.cityAreaArray.splice(swiper_index + 1,1,currentObj["area"])
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+
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+ setTimeout(() => {
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+ this.currentIndex = swiper_index + 1
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+ this.changeIndicator(swiper_index + 1)
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+ }, 50);
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+
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+ }else{//是最下一级
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+
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+ let city = currentObj.name
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+ this.dataList.splice(swiper_index,1,city)
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+
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+ //选择成功返回数据
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+ this.$emit("selectAddress", this.dataList.join('/'))
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+
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+ this.$nextTick(() => {
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+ this.changeIndicator(swiper_index)
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+ })
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+
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+ setTimeout(() => {
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+ this.isShow = false
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+ }, 100);
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+ setTimeout(() => {
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+ this.isShowMask = false
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+ }, 500);
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+
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+ }
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+
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+ }
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+
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+ }
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+ },
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+ created() {
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+ this.cityData = cityData
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+ this.cityAreaArray.push(cityData)
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+ },
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+ mounted() {
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+
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+ // this.changeIndicator(0)
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+ }
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+ }
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+</script>
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+
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+<style lang="scss">
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+// 不换行
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+@mixin no-wrap(){
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+ text-overflow: ellipsis;
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+ overflow: hidden;
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+ white-space: nowrap;
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+}
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+.wrapper{
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+ z-index: 1999;
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+ position: absolute;
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+ top: -88rpx;
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+ left: 0;
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+ bottom: 0;
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+ right: 0;
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+ .content_view{
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+ z-index: 999;
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+ background: white;
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+ position: absolute;
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+ height: 80%;
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+ left: 0;
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+ bottom: 0;
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+ right: 0;
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+ border-top-left-radius: 40rpx;
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+ border-top-right-radius: 40rpx;
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+ .title_view{
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+ height: 12%;
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+ display: flex;
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+ justify-content: space-between;
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+ align-items: center;
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+ padding: 0 $uni-spacing-row-sm;
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+ .title{
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+ font-size: 34rpx;
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+ }
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+ .close_view{
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+ height: 120rpx;
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+ width: 120rpx;
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+ display: flex;
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+ justify-content: center;
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+ align-items: center;
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+ }
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+ }
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+ .select_top{
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+ height: 8%;
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+ display: flex;
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+ justify-content: start;
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+ align-items: center;
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+ padding: 20rpx;
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+ position: relative;
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+ box-sizing: border-box;
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+ .select_top_item{
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+ width: 160rpx;
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+ font-size: 32rpx;
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+ @include no-wrap();
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+ }
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+ .indicator{
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+ position: absolute;
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+ width: 62rpx;
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+ height: 4rpx;
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+ background: $uni-color-error;
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+ left: 32rpx;
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+ bottom: 12rpx;
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+ transition: left 0.5s ease;
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+ }
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+ }
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+ .swiper{
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+ height: 80%;
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+ position: relative;
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+ left: 0;
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+ top: 0;
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+ bottom: 0;
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+ right: 0;
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+ .swiper-item{
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+ height: 100%;
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+ .scroll-view-item{
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+ height: 100%;
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+ padding: 0 20rpx;
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+ .address_item{
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+ padding: 10rpx 0;
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+ font-size: 30rpx;
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+ display: flex;
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+ align-items: center;
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+ .address_item_icon{
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+ width: 40rpx;
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+ height: 40rpx;
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+ margin-right: 20rpx;
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+ }
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+ }
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+ }
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+ }
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+ }
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+ }
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+ .mask{
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+ position: absolute;
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+ top: 0;
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+ left: 0;
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+ bottom: 0;
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+ right: 0;
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+ background: $uni-text-color-grey;
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+ opacity: 0.7;
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+ }
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+}
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+
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+.content-enter{
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+ transform: translateY(100%);
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+}
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+.content-enter-to{
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+ transform: translateY(0%);
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+}
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+.content-enter-active{
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+ transition: transform 0.5s;
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+}
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+.content-leave{
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+ transform: translateY(0%);
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+}
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+.content-leave-to{
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+ transform: translateY(100%);
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+}
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+.content-leave-active{
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+ transition: transform 0.5s;
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+}
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+
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+</style>
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