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语句ofstream f("DATA.DAT", ios _base:: applios_lios_bfise:: binary);的功能是建立流对象f,并试图打开文件DATA.DAT并与之连接,而且...

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ios base::in  ios_base::binary  ios_base::inIios_base::out  ios_base::out  
ofstream ofile;ofilopen("C://vc//abtxt",ios::binar;  fsbeam iofile;iofilopen("abtxt",ios::at;  ifstream ifile("C://vc//abtxt");  couopen("C://vc//abtxt",ios::binar;  
ofstream ofile;ofilopen("C://vc//abtxt",ios::binar;  fstream iofile;iofilopen("abtxt",ios::at;  ifstream ifile("C://vcXXabtxt");  couopen("C://vc//abtxt",ios::binar;  
ofstream ofile;ofile.open("C://vc//a.txt",ios::binary);  fstream iofile;iofile.open("a.txt",ios::ate);  ifstream ifile("C://vc//a.txt");  cout.open("C://vc//s.txt",ios::binary);  
ofstream ofile;ofilopen("C://vc//txt",ios::binar;  fstream iofile;iofilopen("txt",ios::at;  ifstream ifile("C://vc//txt");  couopen("C://vc//txt",ios::binar;  
ofstream myf("c://abc");  ofstream myf("c://abc",ios::outlios:: trund);  ofstream myf("c://abc",ios::outlios:: ate);  ofstream myf("c://abc",ios::out);  
ofstream ofile;ofile.open("C:////vc//abc.txt",ios::binary);  fstream iofile;iofile.open("abc.txt",ios::ate);  ifstream ifile ("C://vc //abc.txt");  cout.open("C:////vc//abc.txt",ios::binary);  
ofstream ofile;ofilopen("C:////vc//abtxt",ios::binar;  fstream iofile;iofilopen("abtxt",ios::at;  ifstream ifile ("C://vc //abtxt");  couopen("C:////vc//abtxt",ios::binar;  
ofstream ofile; ofilopen("C://vc//abtxt",ios::binar;  fstream iofile; iofilopen("abtxt",ios::at;  ifstream ifile("C://vc//abtxt");  cout,open("C://vc//abtxt",ios::binar;  
ofstream myf("c://abc");  ofstream myf("c://abc",ios::outlios:: trun;  ofstream myf("c://abc",ios::outlios:: at;  ofstream myf("c://abc",ios::ou;  
关系模型  层次模型  网状模型  以上皆非  
ofstream myf("c://abc");  ofstream myf("c://abc",ios::outlios:: trund);  ofstream myf("c://abc",ios::outlios:: ate);  ofstream myf("c://abc",ios::out);  
ifstream fin; fin. open("d://test.txt", ios_base::in);  fstream fio; fio. open("d://test. txt”, ios_base::out);  ofstream fout; fout. open("d://test. txt”, ios_base::out);  ofstream fout; fout. open("d://test. txt”, ios_base::app);  
ofstream ofile;ofile.open("C://vc/LabC.txt",ios::binary);  fstream iofile;iofile.open("abC.txt",ios::ate);  ifstream ifile("C://vc/abC.txt");  cout.open("C://vc/abC.txt",ios::binary);  
fstream fin(“A: abc.txt”);  ofstream fin (“A: abc.txt”);  ifstream fin(“A: abc.txt”,ios:: app);  ifstream fin(“A: abc.txt”,ios:: nocreate);  
ifstream fin;fin.open("d:/test.txt",ios_base::in);  fstream fio;fio.open("d:/test.txt",ios_base::out);  ofstream fout;fout.open("d:/test.txt",ios_base::out);  ofstream fout;fout.open("d./test.txt",ios_base::app);  
fstream fin(“A: abtxt”);  ofstream fin (“A: abtxt”);  ifstream fin(“A: abtxt”,ios:: ap;  ifstream fin(“A: abtxt”,ios:: nocreat;  
ofstream ofile;ofile.open("C://vc//abc.txt",ios::binary);  fsbeam iofile;iofile.open("abc.txt",ios::ate);  ifstream ifile("C://vc//abc.txt");  cout.open("C://vc//abc.txt",ios::binary);  
ofstream ofile;ofilopen("C://vc/Labtxt",ios::binar;  fstream iofile;iofilopen("abtxt",ios::at;  ifstream ifile("C://vc/abtxt");  couopen("C://vc/abtxt",ios::binar;  
ios base::in  ios_base::binary  ios base::in  ios base::out  ios base::out  

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