我使用FILE_FLAG_OVERLAPPED指定的所有行动，处理这个档案将无阻塞，其余的参数是样板的串行通讯。

I use FILE_FLAG_OVERLAPPED to specify that all operations on this file handle will be non-blocking, and the rest of the parameters are boilerplate for serial communications.

youdao

我使用FILE_FLAG_OVERLAPPED指定的所有行动，处理这个档案将无阻塞，其余的参数是样板的串行通讯。

I use FILE_FLAG_OVERLAPPED to specify that all operations on this file handle will be non-blocking, and the rest of the parameters are boilerplate for serial communications.

youdao