Luiz Henrique de Figueiredo <lhf@tecgraf.puc-rio.br> 于2020年4月15日周三 下午9:45写道： > > Lua 5.4.0 (rc1) is now available for testing at > http://www.lua.org/work/lua-5.4.0-rc1.tar.gz The struct `UTString` is removed. https://github.com/lua/lua/commit/c5feac2b5edf86aa9bdc4b8acd5380f2fe9e197f#diff-42b714eabd614cd1007e2cdfe60f9dbb But it's still in comments. /* ** Header for string value; string bytes follow the end of this structure ** (aligned according to 'UTString'; see next). */ https://github.com/lua/lua/blob/master/lobject.h#L360