产品详情页-输入产品数量的输入框限制只能输入数字

components/store/CommodityInfo.vue

@@ -256,7 +256,6 @@ export default {
           }
         }
       }
-      console.log(this.fragment)
     },
     subNum () {
       let newNum = this.fragment.num - this.commodity.minPackQty
@@ -269,8 +268,13 @@ export default {
       getFragment(this.commodity, this.fragment)
     },
     inputNum () {
-      this.changeNum(this.fragment.num)
-      getFragment(this.commodity, this.fragment)
+      if ((/^[\d]*$/).test(this.fragment.num)) {
+        this.changeNum(this.fragment.num)
+        getFragment(this.commodity, this.fragment)
+      } else {
+        this.$message.error('请输入数字')
+        this.fragment.num = this.commodity.minBuyQty
+      }
     },
     buyNow: function (isBuy, item) {
       if (!this.$store.state.option.user.logged) {