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vuex 购物车示例,如何做到减物品数量的

学习vuex购物车示例,他是如何做到减物品数量的,看了下代码,加入购物车执行了addToCart action, action 调用了 `types.ADD_TO_CART` mutations,cart、product都实现了这个mutation,一个完成加入物品到购物车,一个实现减库存,是否有先后顺序问题啊


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与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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