BOOL CopyFile(
LPCTSTR lpExistingFileName, //
LPCTSTR lpNewFileName, //
BOOL bFailIfExists //
);
BOOL MoveFile(
LPCTSTR lpExistingFileName, //
LPCTSTR lpNewFileName, //
);
1. , .
#include <windows.h>
#include <iostream.h>
int main()
{
HANDLE hFile;
//
hFile = CreateFile(
"C:\\demo_file.dat", //
GENERIC_WRITE, //
0, //
NULL, //
CREATE_NEW, //
FILE_ATTRIBUTE_NORMAL, //
NULL //
);
//
if (hFile == INVALID_HANDLE_VALUE)
{
cerr << "Create file failed." << endl
<< "The last error code: " << GetLastError() << endl;
cout << "Press any key to finish.";
cin.get();
return 0;
}
//
for (int i = 0; i < 10; ++i)
{
DWORD dwBytesWrite;
if (!WriteFile(
hFile, //
&i, // ,
sizeof(i), //
&dwBytesWrite, //
(LPOVERLAPPED)NULL //
))
{
cerr << "Write file failed." << endl
<< "The last error code: " << GetLastError() << endl;
CloseHandle(hFile);
cout << "Press any key to finish.";
cin.get();
return 0;
}
}
//
CloseHandle(hFile);
cout << "The file is created and written." << endl;
return 0;
}
2. , : , , , , .
#include <windows.h>
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int iMenu;DWORD dwBytesWrite;
char cMenu[200]=":\n1 - \n2 - \n3 - \n4 - \n5 - \n6 - \n7 - \n8 - \n";
CharToOem(cMenu, cMenu);
while(1)
{
system("cls");
cout << cMenu; cin >> iMenu;
switch(iMenu)
{
HANDLE hFile;
char buf[50],buf1[50];
case 1:
CharToOem(" :\n ?\n", buf); cout << buf;
cin >> buf;
hFile = CreateFile(buf,GENERIC_WRITE, 0,NULL,CREATE_NEW, FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
cerr << "Create file failed." << endl
<< "The last error code: " << GetLastError();
cout << "\nPress any key to finish.";
getch();
break;
}
cout << "The file is created." << endl;
|
|
|
CloseHandle(hFile);
getch();
break;
case 2:
CharToOem(" :\n ?\n", buf); cout << buf;
cin >> buf;
hFile = CreateFile(buf,GENERIC_WRITE,0,NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
cerr << "Open file failed." << endl
<< "The last error code: " << GetLastError();
cout << "\nPress any key to finish.";
getch();
break;
}
cout << "The file is opened." << endl;
CloseHandle(hFile);
getch();
break;
case 3:
CharToOem(" :\n ?\n", buf); cout << buf;
cin >> buf;
if (!DeleteFile(buf))
{
cerr << "Delete file failed." << endl
<< "The last error code: " << GetLastError();
cout << "\nPress any key to finish.";
getch();
break;
}
cout << "The file is deleted." << endl;
getch();
break;
case 4:
CharToOem(" :\n ?\n", buf); cout << buf;
cin >> buf;
hFile = CreateFile(buf,GENERIC_WRITE,0,NULL,OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
cerr << "Creat file failed." << endl
<< "The last error code: " << GetLastError();
cout << "\nPress any key to finish.";
getch();
break;
}
cout << "The file is opened." << endl;
CharToOem(" !\n", buf); cout << buf;
cin >> buf;
if (!WriteFile(hFile,&buf,sizeof(buf),&dwBytesWrite,
(LPOVERLAPPED)NULL))
{
cerr << "Write file failed." << endl
<< "The last error code: " << GetLastError();
CloseHandle(hFile);
cout << "\nPress any key to continue.";
getch();
break;
}
cout << "The Information is written." << endl;
CloseHandle(hFile);
getch();
break;
case 5:
CharToOem(" :\n ?\n", buf); cout << buf;
cin >> buf;
hFile = CreateFile(buf,GENERIC_READ,0,NULL,OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
cerr << "Open file failed." << endl
<< "The last error code: " << GetLastError();
cout << "\nPress any key to finish.";
getch();
break;
}
cout << "The file is opened." << endl;
if (!ReadFile(hFile,&buf,sizeof(buf),&dwBytesWrite, (LPOVERLAPPED)NULL))
{
cerr << "Read file failed." << endl
<< "The last error code: " << GetLastError();
CloseHandle(hFile);
cout << "\nPress any key to continue.";
getch();
break;
}
if(!dwBytesWrite) cout << "The file is empty" << endl;
else cout << "Read information:"<< buf << endl;
CloseHandle(hFile);
getch();
break;
case 6:
CharToOem(" :\n ?\n", buf); cout << buf;cin >> buf;
CharToOem(" ?\n", buf1); cout << buf1;cin >> buf1;
|
|
|
if(!CopyFile(buf,buf1,true))
{
cerr << "Move file failed. The last error code: " << GetLastError();
cout << "\nPress any key to continue.";
getch();
break;;
};
cout << "The file is copied."<< endl;
getch();
break;
case 7:
CharToOem(" :\n ?\n", buf); cout << buf;cin >> buf;
CharToOem(" ?\n", buf1); cout << buf1;cin >> buf1;
if(!MoveFile(buf,buf1))
{
cerr << "Move file failed. The last error code: " << GetLastError();
cout << "\nPress any key to continue.";
getch();
break;;
};
cout << "The file is moved."<< endl;
getch();
break;
case 8: return 0;
}
}
}
1. 1. CreateFile WriteFile, .
2. :
− ;
− ;
− ;
− , ;
− ;
− ;
− .
, . , .
1. ? .
2. ?
3. : hIn=CreateFile(argv [1], GENERIC_READ, 0, NULL, OPEN_EXISTING, 0,NULL)?
4. , : hOut=CreateFile(argv[2], GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL).
5. , : while (ReadFile(hIn, Buffer, BUF_SIZE, &nIn, NULL) && nIn > 0).
6. : WriteFile (hOut,Buffer, nIn, &nOut, NULL)?
7. , : if(!opyFile(argv[1],argv[2],FALSE)).
9
: Win32 API
:
1. Win32API, .
2. , .
