修改订单部分逻辑代码，提取公共方法

pagesOrder/index/compoents/order-item.vue

@@ -59,7 +59,8 @@
 					<view class="no-wrap u-m-r-32">打包费</view>
 					<view>￥{{data.packFee||0}}</view>
 				</view>
-				<view class="u-flex u-row-between   u-m-t-32 u-col-top" v-if="data.seatInfo&&data.seatInfo.priceAmount>0">
+				<view style="height: 32rpx;" v-if="data.packFee>0&&data.seatInfo&&data.seatInfo.priceAmount>0"></view>
+				<view class="u-flex u-row-between    u-col-top" v-if="data.seatInfo&&data.seatInfo.priceAmount>0">
 					<view class="no-wrap u-m-r-32">{{data.seatInfo.productName}}</view>
 					<view>￥{{data.seatInfo.priceAmount}}</view>
 				</view>
@@ -72,7 +73,7 @@
 			</view>
 			<view class="u-m-t-32">
 				<view class="u-flex u-row-right">
-					<text>小计￥</text>
+					<text>总计￥</text>
 					<text class="font-bold u-font-32">{{data.orderAmount}}</text>
 				</view>
 				<view class="u-flex u-row-right u-m-t-24">
@@ -87,6 +88,7 @@
 	import dayjs from 'dayjs';
 	import orderEnum from '@/commons/orderEnum.js'
 	import go from '@/commons/utils/go.js'
+	import {isTui,canTuiKuan,canTuicai} from '@/commons/utils/goodsUtil.js'
 	import {
 		computed,
 		reactive,