zhouhao 0d9ac33359 Copyright 2020 %!s(int64=5) %!d(string=hai) anos
..
main 0d9ac33359 Copyright 2020 %!s(int64=5) %!d(string=hai) anos
test d053a44437 优化test %!s(int64=6) %!d(string=hai) anos