类型注释语法仅适用3.10,无法达成setup.py所支持的3.6-3.10

[liujuanjuan1984]

https://peps.python.org/pep-0604/

since python>=3.10

Allow writing union types as X | Y

[zh4n7wm]

刚把 typing 相关的都修改了，应该 py36 ~ 311 都兼容了。