其实只是QT菜鸟为了练习而搞出来的
文件头：
#include#include #include #include #include enum Encoding{ ASCII = 0, Unicode = 1, UTF32 = 2, UTF7 = 3, UTF8 = 4, GBK = 5};class File{public: File(); static void Create(QString path); //创建文件,如果文件存在则覆盖 static bool Exist(QString path); //判断文件是否存在 static void AppendAllText(QString path, QString content, Encoding encode); //向现有文件内追加数据 static void AppendAllText(QString path, QString content); //向现有文件内追加数据 static void AppendAllLines(QString path,QStringList lines, Encoding encode); //向现有文件内追加多行数据 static void AppendAllLines(QString path,QStringList lines); //向现有文件内追加多行数据 static void WriteAllText(QString path,QString content,Encoding encode); //创建新文件并写入文件，如果有文件则覆盖 static void WriteAllText(QString path,QString content); //创建新文件并写入文件，如果有文件则覆盖 static void WriteAllLines(QString path,QStringList content,Encoding encode); //创建新文件并写入多行数据，如果文件存在则覆盖 static void WriteAllLines(QString path,QStringList content); //创建新文件并写入多行数据，如果文件存在则覆盖 static QString ReadAllText(QString path,Encoding encode); //读取文件 static QString ReadAllText(QString path); //读取文件 static QStringList ReadAllLines(QString path,Encoding encode); //读取文件内所有的行 static QStringList ReadAllLines(QString path); //读取文件内所有的行 static void Copy(QString sourceFileName,QString destFileName,bool overwrite); //拷贝文件 static void Copy(QString sourceFileName,QString destFileName); //拷贝文件 static void Move(QString sourceFileName,QString destFileName); //移动文件 static void Delete(QString path); //删除文件 static void Rename(QString path,QString name); //重命名private: static QTextCodec* GetCode(Encoding code);};
源文件：
File::File(){}bool File::Exist (QString path){ QFile file(path); return file.exists ();}QTextCodec* File::GetCode (Encoding code){ QTextCodec* c; switch(code) { case Encoding(0): c = QTextCodec::codecForName ("ASCII"); break; case Encoding(1): c = QTextCodec::codecForName ("Unicode"); break; case Encoding(2): c = QTextCodec::codecForName ("UTF-32"); break; case Encoding(3): c = QTextCodec::codecForName ("UTF-7"); break; case Encoding(4): c = QTextCodec::codecForName ("UTF-8"); break; case Encoding(5): c = QTextCodec::codecForName ("GBK"); break; } return c;}void File::Create (QString path){ Delete(path); QFile file(path); file.open (QIODevice::WriteOnly); file.close ();}QString File::ReadAllText (QString path, Encoding encode){ QString text; if(Exist (path)) { QFile file(path); QTextStream stream(&file); stream.setCodec (GetCode(encode)); stream.seek (0); text = stream.readAll (); } return text;}QString File::ReadAllText (QString path){ return ReadAllText(path,Encoding(1));}QStringList File::ReadAllLines (QString path, Encoding encode){ QStringList ts; if(Exist (path)) { QFile file(path); QTextStream stream(&file); stream.setCodec (GetCode(encode)); stream.seek (0); int index = 0; while(!stream.atEnd ()) { QString t = stream.readLine (index); ts.append (t); index++; } } return ts;}QStringList File::ReadAllLines (QString path){ return ReadAllLines(path,Encoding(1));}void File::WriteAllText (QString path, QString content, Encoding encode){ Delete(path); Create(path); QFile file(path); QTextStream stream(&file); stream.seek (0); stream.setCodec (GetCode (encode)); stream << content; file.close ();}void File::WriteAllText (QString path, QString content){ WriteAllText(path,content,Encoding(1));}void File::WriteAllLines (QString path, QStringList content, Encoding encode){ Delete(path); Create(path); QFile file(path); QTextStream stream(&file); stream.seek (0); stream.setCodec (GetCode (encode)); for ( QStringList::Iterator it = content.begin(); it != content.end(); ++it ) stream << *it << "\r\n"; file.close ();}void File::WriteAllLines (QString path, QStringList content){ WriteAllLines(path,content,Encoding(1));}void File::AppendAllText (QString path, QString content, Encoding encode){ if(!Exist (path))Create(path); QString text = ReadAllText(path, encode); text += content; WriteAllText(path,text,encode);}void File::AppendAllText (QString path, QString content){ AppendAllText(path,content,Encoding(1));}void File::AppendAllLines (QString path, QStringList lines, Encoding encode){ if(!Exist (path))Create(path); QString text = ReadAllText(path, encode); text += "\r\n"; foreach(QString s,lines) text += (s + "\r\n"); WriteAllText(path,text,encode);}void File::Copy (QString sourceFileName, QString destFileName, bool overwrite){ if(Exist (destFileName) && overwrite) { QFile file(destFileName); file.remove (); } if(!Exist (destFileName)) { QFile::copy (sourceFileName,destFileName); }}void File::Copy (QString sourceFileName, QString destFileName){ Copy(sourceFileName,destFileName,false);}void File::Delete (QString path){ QFile file(path); if(file.exists ()) { file.remove (); }}void File::Rename (QString path, QString name){ if(Exist(path)) { QFile file(path); QString oldName = file.fileName (); QFile::rename (oldName,name); }} 花了不少时间搞定了，不过并没有做测试，有没有问题我也不知道……