vc帮助问题
--------------------Configuration: yy - Win32 Debug--------------------Compiling...
yy.cpp
e:\vc6cn\vc98\include\ios(9) : fatal error C1083: Cannot open include file: 'streambuf': No such file or directory
执行 cl.exe 时出错.
Creating browse info file...
BSCMAKE: error BK1506 : cannot open file '.\Debug\yy.sbr': No such file or directory
执行 bscmake.exe 时出错.
yy.exe - 1 error(s), 0 warning(s)
这个什么错误啊