no message

src/components/Hotel/singleProduct/components/TableOperation.vue

@@ -196,7 +196,9 @@
         },
         join(){
             this.cars = []
-            this.cars = JSON.parse(localStorage.getItem('cars'))
+            if(JSON.parse(localStorage.getItem('cars'))){
+               this.cars = JSON.parse(localStorage.getItem('cars')) 
+            }
             if(!this.sumPeople) return  this.Error('请加入人数');
             const temp= JSON.parse(JSON.stringify(this.parameters))
             temp.Money=0
@@ -207,7 +209,7 @@
                 temp.Money+=(x.PeopleNumber*(x.Unit_Price+x.TaxesPrice+x.PriceInTangTax))
             });
             let existsIndex = this.cars.findIndex((x)=>x.Date == temp.Date)
-            let exists = existsIndex==-1?null:this.cars[existsIndex]
+            let exists = existsIndex==-1?null:this.cars[existsIndex] 
             if(exists){
                 let existsHotel = exists.Hotels.findIndex((h)=>h.HotelId==temp.HotelId)
                 if(existsHotel!=-1) exists.Hotels.splice(existsHotel,1)