I'm writing an IO class to upload/download files to a controller over RS-232 serial. Unfortunately, I cannot send a whole file all at once, I have to break it into packets and send it a little bit at a time. Here's the basic approach... I'm writing an IO class to upload/download file
阅读背景：
Sleep()是一个糟糕的设计，但似乎是我唯一的选择
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