即便愿意付正价的客人，看到身边人都在买折扣券，也会跟风选择，这就让门店陷入了“想服务正价客人、想保持合理利润却不可得”的困境。
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Фото: Kenny Holston/The New York Times / Reuters，推荐阅读im钱包官方下载获取更多信息
After implementing the Web streams spec multiple times across different runtimes and seeing the pain points firsthand, I decided it was time to explore what a better, alternative streaming API could look like if designed from first principles today.