目录简介源代码源代码说明效果如下所示简介 使用PC摄像机扫描二维码可以有很多应用场景，例如：
I have been开发者_如何学C trying to make a function in Haskell to take a ByteString which is a datetime and convert it to UTC time taking into account the time zone from the original encoding. I am ve
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