每瓶啤酒2元,2个空酒瓶或4个瓶盖可换1瓶啤酒。10元最多可喝多少瓶啤酒?

Voll 627c4ee49f first commit %!s(int64=9) %!d(string=hai) anos
README.md 627c4ee49f first commit %!s(int64=9) %!d(string=hai) anos
cacld.py 627c4ee49f first commit %!s(int64=9) %!d(string=hai) anos

README.md