Qt simulates C # file operations on files

Actually, it's just that QT cainiao made it for practice.

File Header:

# Include <qfile> # include <qstring> # include <iostream> # include <qtextcodec> # include <qtextstream> Enum encoding {ASCII = 0, Unicode = 1, UTF32 = 2, utf7 = 3, utf8 = 4, GBK = 5}; Class file {public: file (); static void create (qstring path); // create a file, if the object exists, it overwrites static bool exist (qstring path); // determines whether the object exists static void appendalltext (qstring path, qstring content, encoding encode ); // append the static void appendalltext (qstring path, qstring content) to the existing file; // append the static void appendalllines (qstring path, qstringlist lines, encoding encode); // append multiple rows of data to an existing file. Static void appendalllines (qstring path, qstringlist lines ); // append multiple rows of data to an existing file static void writealltext (qstring path, qstring content, encoding encode); // create a new file and write it into the file, if a file exists, it will overwrite static void writealltext (qstring path, qstring content); // create a new file and write it into the file. If a file exists, it will overwrite static void writealllines (qstring path, qstringlist content, encoding encode); // create a new file and write multiple lines of data. If the file exists, it overwrites static void writealllines (qstring path, qstringlist content ); // create a new file and write data in multiple rows. If the file exists, it overwrites static qstring readalltext (qstring path, encoding encode); // read the static qstring readalltext (qstring path) file ); // read the file static qstringlist readalllines (qstring path, encoding encode); // read all rows in the file static qstringlist readalllines (qstring path ); // read all rows in the file static void copy (qstring sourcefilename, qstring destfilename, bool overwrite); // copy the file static void copy (qstring sourcefilename, qstring destfilename ); // copy the file static void move (qstring sourcefilename, qstring destfilename); // move the file static void Delete (qstring path); // delete the file static void Rename (qstring path, qstring name); // Rename private: static qtextcodec * getcode (encoding Code );};

Source file:

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);    }}

It took a lot of time to get it done, but I didn't do the test. I don't know if there are any problems ......

Qt simulates C # file operations on files