哪位高手說下呀，，， 小弟在這里跪謝了，《〈〈〈〈〈〈〈〈錯誤代碼：--------------------Configuration: 1654 - Win32 Debug--------------------Compiling...1654.cppd:\program files\microsoft visual studio\vc98\include\ios.h(104) : error C2371: 'ostream' : redefinition; different basic typesd:\program files\microsoft visual studio\vc98\include\iosfwd(257) : see declaration of 'ostream'd:\program files\microsoft visual studio\vc98\include\istream.h(64) : error C2371: 'istream' : redefinition; different basic typesd:\program files\microsoft visual studio\vc98\include\iosfwd(256) : see declaration of 'istream'執行 cl.exe 時出錯.1654.exe - 1 error(s), 0 warning(s)程序：#include "stdafx.h"#include "Sales_item.h"#include "iostream.h"int main(int argc, char* argv[]){Sales_item book;cin>>book;cout<<book<<endl;return 0;}