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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                ![](https://img.kancloud.cn/ba/91/ba91a801b46110691d896e2f8b966cbc_586x190.png) 1、如果只有A獎品,中獎概率填寫的不管是多少,都會百分之百中獎 (前提:沒有設置“限制中獎次數”) 2、如果只有A獎品 想讓參與活動的用戶只有20%中獎 可再設置一個80%概率的謝謝參與獎,中獎概率:20% / (20% + 80%) = 20% 3、如果有三種獎品,A概率60,B概率20,C概率40,那么得到獎品A的概率就是60/(60+20+40)=50%,得到獎品B的概率就是20/(60+20+40)=16.66%,得到獎品C的概率就是40/(60+20+40)=33.33%,如果A獎品抽完了,那么得到獎品B的概率就是20/(20+40)=33.33%,得到獎品C的概率就是40/(20+40)=66.66%
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