vc++6.0下关于头文件包含

VC+6.0 下关于头文件包含By francis_hao 最近学习 ucosii，从网上下载了一个可以在 pc 上运行的工程，刚开始没太注意它的文件结构，只是专注了它的运行结果。后来不经意间看见了这样的结构：怎么样？发现异常了吧。我当时就赫然发现这有悖常理啊，于是我仿照着这种文件结构自己做了一个工程，但是不能编译，提示找不到所包含的头文件但是以我的水平，对此实在是无法解释啊。就去查阅资料，查了半天也毫无头绪。我劝自己,这和我有什么关系呢，用 ”得了，可是抵不住心里那份好奇，就想一探究竟，我在网上求助一位高人，但是他有事没能给我解答。我在一个 ucos 群里也问了这样的问题，有人说可以将 include.h 所在的目录添加在默认头文件路径里。我看了一下没有异常。但是我发现了原来可以在一些选项里更改编译器的参数，以实现你需要的功能。于是我打开下载的工程，对着可以设置的参数挨个查看。就像玩的游戏“找不同” 。终于，我发现了些蛛丝马迹上边红色标记的地方还好理解，下边的就有点太深奥了吧！不会要让我修改 Project Options 选项吧，看着那些字母头都大了。但是总算有点头绪了。头撑大了也值。我查阅了相关资料发现这一条：/I add to include search path前面的/I 是命令，后面是解释。这就好办了，我在里面添加了这样的语句/I “.”再编译，哈哈，编译成功。问题解决了。这个小问题使我停滞了将近一天，要加快步伐了！Project Options 语法附录在下面：也不必全然看懂，因为很多我们是用不上的。在里面查看自己感兴趣的就可以了。附录：Project Options 语法/O1 minimize space/Op- improve floating-pt consistency/O2 maximize speed/Os favor code space/Oa assume no aliasing/Ot favor code speed/Ob inline expansion (default n=0)/Ow assume cross-function aliasing/Od disable optimizations (default)/Ox maximum opts. (/Ogityb1 /Gs)/Og enable global optimization /Oy- enable frame pointer omission/Oi enable intrinsic functions/G3 optimize for 80386/G4 optimize for 80486/GR- enable C+ RTTI/G5 optimize for Pentium/G6 optimize for Pentium Pro/GX- enable C+ EH (same as /EHsc)/EHs enable synchronous C+ EH/GD optimize for Windows DLL/GB optimize for blended model (default)/EHa enable asynchronous C+ EH/Gd _cdecl calling convention /EHc extern “C“ defaults to nothrow/Gr _fastcall calling convention/Gi- enable incremental compilation/Gz _stdcall calling convention /Gm- enable minimal rebuild/GA optimize for Windows Application/Gf enable string pooling /QIfdiv- enable Pentium FDIV fix /GF enable read-only string pooling /QI0f- enable Pentium 0x0f fix/Gy separate functions for linker/GZ enable runtime debug checks/Gh enable hook function call/Ge force stack checking for all funcs/Gsnum disable stack checking calls/Fafile name assembly listing file/Fo name object file/FAsc configure assembly listing /Fp name precompiled header file/Fdfile name .PDB file /Frfile name source browser file/Fe name executable file/FRfile name extended .SBR file/Fmfile name map file/FI name forced include file/C dont strip comments /U remove predefined macro/D=|# define macro/u remove all predefined macros/E preprocess to stdout/I add to include search path/EP preprocess to stdout, no #line/X ignore “standard places“/P preprocess to file/Zi enable debugging information/Zl omit default library name in .OBJ/ZI enable Edit and Continue debug info/Zg generate function prototypes/Z7 enable old-style debug info/Zs syntax check only/Zd line number debugging info only/vd0|1 disable/enable vtordisp/Zpn pack structs on n-byte boundary/vm type of pointers to members/Za disable extensions (implies /Op)/noBool disable “bool“ keyword/Ze enable extensions (default)/?, /help print this help message/c compile only, no link/W set warning level (default n=1)/H max external name length/J default char type is unsigned/nologo suppress copyright message/WX treat warnings as errors/Tc compile file as .c /Ycfile create .PCH file/Tp compile file as .cpp /Yd put debug info in every .OBJ/TC .c compile all files as .c /TP .cpp compile all files as .cpp /Yufile use .PCH file/V set version string/YXfile automatic .PCH/w disable all warnings/Zm max memory alloc (% of default)/MD link with MSVCRT.LIB/MDd link with MSVCRTD.LIB debug lib/ML link with LIBC.LIB/MLd link with LI