Fix：3416 【礼品功能】送礼页面手动删除数量后，该数量框显示空白，删除数量后，默认为1

pkg_user/views/gift/gift.vue

@@ -54,7 +54,6 @@
               <text class="v12-primary-text v12-font-bold v12-font-30">{{ payPrice }}</text>
             </view>
             <view>
-              
               <u-number-box
                 v-if="!isPayOk"
                 v-model="goodsInfo.cartNum"
@@ -63,6 +62,7 @@
                 iconStyle="color: #fff"
                 class="num-step"
                 @change="numberChange"
+                @blur="numberBlur(goodsInfo.cartNum)"
                 
               >
                 <template v-slot:minus>
@@ -230,6 +230,14 @@ export default {
     numberChange(e) {
       this.computedPrice(e.value)
     },
+    numberBlur(e) {
+      console.log(e);
+      this.isPayOk = true
+      setTimeout(() => {
+        this.isPayOk = false 
+      },10)
+      this.$forceUpdate()
+    },
     computedPrice(num) {
       const params = {
         cartId: this.cartId,