Мария Захароваофициальный представитель МИД России
func (opt *Option) ArgInt8() (int8, error)
，详情可参考91视频
/r/WorldNews Live Thread: Russian Invasion of Ukraine Day 1470, Part 1 (Thread #1617)
See more at this issue and its corresponding pull request.
Package getopt implements a command line parser. It can handle POSIX-style