cpp 读写文件(CPP read and write files) C++ file operation 2009-04-28 13:08 in C++, there is a stream class, all the I/O are based on the "flow" class, including the file we want to recognize I/O, The class stream has two important operators: 1, inserter (") Output data to ...
{ReadFile* file = (ReadFile*) context->hidden.unknown.data1;try{ file->read(ptr, size, maxnum); }catch(FileReadException& e) {returne.getReadCount(); }catch(...) {return0; }returnmaxnum; } 开发者ID:BackupTheBerlios,项目名称:netpanzer-svn,代码行数:13,代码来源:FileSystem.cpp 示...
HANDLE hFILE=CreateFile("1.txt",GENERIC_WRITE,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); if(hFILE==INVALID_HANDLE_VALUE) { printf("CreateFile error\n"); return 0; } if(SetFilePointer(hFILE,0,NULL,FILE_END)==-1) { printf("SetFilePointer error\n"); return 0; ...
file.close(); qDebug() <<"File "+ directory.absolutePath()+fileList.at(i) +" closed at "+ QDateTime::currentDateTime().toString(); } 开发者ID:gbschenkel,项目名称:ACME,代码行数:70,代码来源:logreader.cpp 示例4: readNode ▲点赞 1▼ virtualReadResultreadNode(conststd::string& fileNam...
1. CreateFile:这是一个多功能的函数,可打开或创建以下对象,并返回可访问的句柄:控制台,通信资源,目录(只读打开),磁盘驱动器,文件,邮槽,管道。 参照:http://www.cppblog.com/yishanhante/articles/19545.html 2. ReadFile:从文件指针指向的位置开始将数据读出到一个文件中, 且支持同步和异步操作 ...
读取文件,按行读取字符串. Contribute to zhangxige/Readfile development by creating an account on GitHub.
get the length of a file. The file_size function suggested can be used, and further documentation on it can be found here: https://en.cppreference.com/w/cpp/filesystem/file_size Note that support for file_size will depend on the support ...
g++ -g -std=c++2a -I. *.cpp ./Model/*.cpp -o h1 -luuid -lpthread time ./h1 log.txt voidUtil::readFile22(stringfileName) { fstream rFile(fileName, ios::in);if(!rFile.is_open()) { cout<<"Open"<< fileName <<"failed!"<<endl;return; ...
Windows C编程中的ReadFile函数是用于从文件或输入设备中读取数据的函数。它可以读取以字符(CHAR)或宽字符(WCHAR)为单位的数据。 ReadFile函数的定义如下: 代码语言:txt 复制 BOOL ReadFile( HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped ); ...
std::ifstream in_file;std::stringfilename;cin>>filename;in_file.open(filename);//ORin_file.open(filename,std::ios::binary); Read Data from the File So far we created the stream and connected it to the file. But we have to make sure that it succeeded before carrying out any operati...