出现下列错误是什么原因(程序是没有错误的)
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/Text2.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/Text2.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
/subsystem:console -> /subsystem:windows