修改

src/components/common/coupon.vue

@@ -15,9 +15,7 @@
                     <div class="cursor-pointer" :class="{'unUsed':currentPrice<x.useCondition}">
                         <div class="coupon-head">
                             <div class="check-tools" v-if="currentPrice>=x.useCondition">
-                                {{ x.couponId }}
-                                <q-checkbox v-model="chosenCouponId" :val="x.couponId" label="" dense color="teal" />
-                                {{ chosenCouponId }}
+                                <q-checkbox v-model="chosenCouponId" :val="x.couponId" @input="changeDiscountHandler" label="" dense color="teal" />
                             </div>
                             <div class="q-pa-lg  q-mt-lg">
                                 <div class="row items-center">
@@ -120,7 +118,9 @@ export default {
     },
     methods: {
         changeDiscountHandler(x){
-            
+            if(this.chosenCouponId.length>1){
+                this.chosenCouponId.splice(0,1)
+            }
         },
         getProductCouponHandler(){
             this.apiJavaPost(

src/components/trip/orderPreview.vue

@@ -490,7 +490,7 @@ export default {
         this.chosenObj.etzcCount;
       money += this.p.babyPrice * this.chosenObj.yeCount;
       money += this.p.singleRoomPrice * this.chosenObj.df;
-
+      this.chosenObj.etCount = this.chosenObj.etbzcCount + this.chosenObj.etzcCount
       let sumCount =
         this.chosenObj.crCount +
         this.chosenObj.etCount +