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owen d0d21b2787 优惠券：新增/修改时，校验对应的商品、分类是否存在		3 years ago
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src/main/java/cn/iocoder/yudao/module/product	优惠券：新增/修改时，校验对应的商品、分类是否存在	3 years ago
pom.xml	trade：增加优惠劵使用、商品库存的扣减	3 years ago