//liumengyang.h#include<iostream.h>class liumengyang{private:int t;public:int v(int l1,int h1,int s1);};int liumengyang::v(int l1,int h1,int s1){t=l1*h1*s1;return t;}#include<liumengyang.h>main(){int s;liumengyang zhangjingchu(1,2,3);s=zhangjingchu.v;cout<<s;}我這個程序怎么錯了 各位高手，能幫忙看看么？編譯提示錯誤：D:\軟件\MSDev98\MyProjects\include\include.cpp(16) : fatal error C1083: Cannot open include file: 'liumengyang.h': No such file or directory執(zhí)行 cl.exe 時出錯.這個是怎么回事？還有 如何不在程序中通過“//”添加.h文件 而在文件夾中直接添加include 文件呢？誰能告訴我，謝謝