文件读写小程序

#include<iostream.h> #include<fstream.h> int main() { ofstream os; fstream is; os.open("MrZhangCopy.jpg",ios::out|ios::trunc|ios::binary); if(!os) { cout<<"can't open output file!"<<endl; } is.open("E:\\山海工作实\\1.jpg",ios::in|ios::binary); if(!is) { cout<<"can't open input file"<<endl; } char ch=NULL; while(!is.eof()) { is.read(&ch,1); os.write(&ch,1); } return 0; }