--------------------Configuration: l - Win32 Debug--------------------
Linking...
ad.obj : error LNK2005: _fun already defined in l.obj
ad.obj : error LNK2005: _main already defined in l.obj
fg.obj : error LNK2005: _main already defined in l.obj
Debug/l.exe : fatal error LNK1169: one or more multiply defined symbols found
执行 link.exe 时出错.
l.exe - 1 error(s), 0 warning(s)
这是推荐答案连接时的情况,请问是哪里出现了问题??