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Repeated operation of online signature and online transfer
2022-02-03 23:37:10 【Q & A of Denglian community】
Due to the complexity of calculation logic , I'm going to calculate the results offline , Administrator signature , Users transfer money online , But how to ensure that users will not receive it again , If the user submits , Not packed yet , Submit another , Because the last sum was not handed in , So we couldn't find the successful subscription message at that time , This will lead to multiple successes , How to avoid ？
Other answers 1：
author[Q & A of Denglian community],Please bring the original link to reprint, thank you.
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