1
在一些命令文件中,通常有「[]」或「<>」。例如:在某些命令文件中,「[]」或「<>」是什麼意思?
git diff [options] [<commit>] [--] [<path>…]
git diff [options] --cached [<commit>] [--] [<path>…]
git diff [options] <commit> <commit> [--] [<path>…]
這是什麼意思?