优化

pages/bus/busDetails.vue

@@ -90,7 +90,7 @@
 							<text class="busMoney">CNY {{ orderMsg.Unit_Price }} /每辆</text>
 						</view>
 						<view class="busListBox row-sb-w"
-						:class="[busInfor.CarType<3?'active':'']">
+						:class="[(busInfor&&busInfor.CarType<3)||(dataList.CarTypeList&&dataList.CarTypeList.length==1)?'active':'']">
 							<view class="busList" 
 							:class="[orderMsg.CarId==item.Id?'active':'']"
 							v-for="(item,index) in dataList.CarTypeList"