文件相关操作 C++源代码

bool filewrite_str(LPCTSTR filepath,LPCTSTR str); bool foldercopy(LPCSTR flodersource,LPCSTR folderobject); bool isfolder(LPCTSTR strfloder); bool createfolder(LPCTSTR strfolder); int countsubfolder(LPCTSTR strfolder); bool folderdelete(LPCSTR strfolder); void str_huanhang(LPCTSTR tmp,char *str); void str_huanhang(LPCTSTR tmp,char *str) { int i=0; int j=0; while(tmp[i]!='\0') { if(tmp[i]=='\r') { str[j]='\r'; j++; str[j]='\n'; }else { str[j]=tmp[i]; } i++; j++; } str[j]='\0'; return; } //将字符串写入指定文件 bool filewrite_str(LPCTSTR filepath,LPCTSTR str) { FILE *fw=fopen(filepath,"w"); if(!fw) return false; char *strtmp=(char *)malloc(strlen(str)+20); memset(strtmp,0,sizeof(strtmp)); str_huanhang(str,strtmp); fwrite(strtmp,sizeof(char),strlen(strtmp),fw); fclose(fw); return true; } //将文件读到一缓冲区里， bool fileread_str(LPCTSTR filepath,char str[]) { FILE *fw=fopen(filepath,"r"); if(!fw) return false; fread(str,sizeof(char),1024,fw); fclose(fw); return true; } //文件夹的复制(包括子文件的复制) bool foldercopy(LPCSTR foldersource,LPCSTR folderobject) { SHFILEOPSTRUCT op; LPCSTR strFrom=foldersource; LPCSTR strTo=folderobject; op.hwnd = NULL; op.pFrom = strFrom ; op.pTo = strTo ; op.fFlags = FOF_WANTMAPPINGHANDLE|FOF_NOCONFIRMATION|FOF_SILENT; op.wFunc = FO_COPY; if(::SHFileOperation(&op)) { return false; } return true; };//第一个参数需谨慎使用，不能用CString类型，有时不能复制所有的子目录???奇怪?? //判断文件夹是否存在 bool isfolder(LPCTSTR strfolder) { if(!::SetCurrentDirectory(strfolder)) { return false; } return true; }; //创建一个新的文件夹 bool createfolder(LPCTSTR strfolder) { if(isfolder(strfolder)) return true; if(::CreateDirectory(strfolder,NULL)) return true; return false; }; //统计一文件夹中有多少子文件夹 int countsubfolder(LPCTSTR strfolder) { int i=0; WIN32_FIND_DATA fin; HANDLE hfile=::FindFirstFile(strfolder,&fin); DWORD errorcode = 0; while(hfile!=INVALID_HANDLE_VALUE&&errorcode!=ERROR_NO_MORE_FILES) { i++; if(!::FindNextFile(hfile,&fin)) errorcode=GetLastError(); } ::FindClose(hfile); if(i>2) return i-2; return 0; } //删除文件夹 bool folderdelete(LPCSTR strfolder) { SHFILEOPSTRUCT op; LPCSTR strFrom=strfolder; op.hwnd = NULL; op.pFrom = strFrom ; op.fFlags = FOF_WANTMAPPINGHANDLE|FOF_NOCONFIRMATION|FOF_SILENT; op.wFunc = FO_DELETE; if(::SHFileOperation(&op)) { return false; } return true; }