判断文件或者文件夹是否存在

// C++判断一个文件是否存在#include <iostream>#include <fstream>using namespace std;#define  FILENAME "stat.dat"int main(){    fstream _file;    _file.open(FILENAME, ios::in);    if(!_file)        cout << FILENAME << "没有被创建" << endl;    else        cout << FILENAME << "已经存在" << endl;    system("pause");    return 0;}// #define _WIN32_WINNT 0x0400#include <Windows.h>#include <stdio.h>int main(int argc, char* argv[]){    WIN32_FIND_DATAA FindFileData;    HANDLE hFind;    printf("Target file is %s\n", argv[1]);    hFind = FindFirstFileA(argv[1], &FindFileData);    if(hFind == INVALID_HANDLE_VALUE)        printf("Invalid File Handle.Get Last Error reports %d\n", GetLastError());    else        printf("The first found is %s\n", FindFileData.cFileName);    FindClose(hFind);    getchar();    return 0;}#include <Windows.h>#include <stdio.h>#include <string>using std::string;void CheckFolderExist(const string& strPath){    WIN32_FIND_DATAA wfd;    HANDLE hFind = FindFirstFileA(strPath.c_str(), &wfd);    if(hFind != INVALID_HANDLE_VALUE && (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))        printf("folder %s is exist.\n", strPath.c_str());    else        printf("folder %s is not exist.\n", strPath.c_str());    FindClose(hFind);}int main(){    string str1 = "C:\\Windows";    CheckFolderExist(str1);    string str2 = "C:\\test";    CheckFolderExist(str2);    getchar();    return 0;}#include <afx.h>#include <Windows.h>#include <stdio.h>/************************************************************************//* file exist                                                           *//************************************************************************/bool IsFileExist(const CString& csFile){    DWORD dwAttrib = GetFileAttributes(csFile);    return dwAttrib != INVALID_FILE_ATTRIBUTES && 0 == (dwAttrib & FILE_ATTRIBUTE_DIRECTORY);}/************************************************************************//* folder exist                                                         *//************************************************************************/bool IsDirExist(const CString& csDir){    DWORD dwAttrib = GetFileAttributes(csDir);    return dwAttrib != INVALID_FILE_ATTRIBUTES && 0 != (dwAttrib & FILE_ATTRIBUTE_DIRECTORY);}/************************************************************************//* file or folder exist                                                 *//************************************************************************/bool IsPathExist(const CString& csPath){    DWORD dwAttrib = GetFileAttributes(csPath);    return dwAttrib != INVALID_FILE_ATTRIBUTES;}int main(){    getchar();    return 0;}