[库存][修改]:减库存和增库存修改

mallinkService/src/main/resources/mapper/WxCouponMapper.xml

@@ -526,11 +526,11 @@
     </select>
 
     <update id="reduceInventory">
-        update wx_coupon SET remain_inventory = remain_inventory - #{number} where id = #{id} and remain_inventory - #{number} >= 0
+        update wx_coupon SET remain_inventory = remain_inventory - #{number} where id = #{id} and remain_inventory - #{number} &gt;= 0
     </update>
 
     <update id="backInventory">
-        update wx_coupon SET remain_inventory = remain_inventory + #{number} where id = #{id} and remain_inventory + #{number} <= #{inventory}
+        update wx_coupon SET remain_inventory = remain_inventory + #{number} where id = #{id} and remain_inventory + #{number} &lt;= #{inventory}
     </update>
 
     <update id="offExpiriedCouponByValidDate">