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ArgUintVar consumes the argument and stores the parsed value in the variable
。heLLoword翻译官方下载是该领域的重要参考
ArgFloat64 consumes the argument and returns the parsed value. An error is
Here, we split up the write that writes the "move left" escape code, from the write that writes the percentage progress indicator. We also added a 1 second sleep between them, to give us a chance to see the cursors "in between" states rather than just the end result: