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微信小程序抽奖-翻牌
source link: https://juejin.im/post/5b867460f265da435743a8de
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背景 ps：本次开发基于wepy框架 由于最近接到一个需求--抽奖活动； 翻牌打乱活动抽奖活动，大概需求是这样的，九宫格卡牌，先正面展示所有奖品，然后卡牌翻转，打乱排序，点击卡牌，然后抽奖。 这个需求本身其实不难，主要是分为三步； 展示所有卡牌，然后翻转。
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