这样子该怎么办?
--------------------Configuration: 291-1 - Win32 Debug--------------------
Linking...
291-9.obj : error LNK2005: "int __cdecl main3(void)" (?main3@@YAHXZ) already defined in 291-1-3.obj
Debug/291-1.exe : fatal error LNK1169: one or more multiply defined symbols found
执行 link.exe 时出错.
291-1.exe - 1 error(s), 0 warning(s)