bstype 存在则使用不存在则为0

src/views/tirePartsMall/salesManagement/saleOrder/detailsPage.vue

@@ -2496,7 +2496,7 @@ export default {
                         }
                     }
                     this.form.storageName = this.form.$storageId ? this.form.$storageId : ''
-                    this.form.billType = 0
+                    this.form.billType = this.form.billType ? this.form.billType : 0
                     submit({
                         bsType: "XS",
                         ...this.form