产品详情页添加可拆包输入错误提示

components/store/CommodityInfo.vue

@@ -220,6 +220,7 @@ export default {
       let breakUp = this.commodity.breakUp
       if (newNum < buy) {
         if (breakUp) {
+          this.$message.error('最小起订量为' + buy)
           this.fragment.num = buy
           this.fragment.canSub = false
         } else {
@@ -253,6 +254,7 @@ export default {
         }
         if (this.fragment.num > reserve) {
           if (breakUp) {
+            this.$message.error('库存不足')
             this.fragment.num = reserve
             this.fragment.canAdd = false
           } else {