1//QString to wchar_t *:2constwchar_t * encodedName = reinterpret_cast<constwchar_t *>(fileName.utf16());34//QString to char * given a file name:5QByteArray fileName =QFile::encodeName(aFileName);6constchar* encodedName = fileName.constData();//Valid as long as fileName exists...
* QTcpSocket * QUdpSocket * * QDataStream * QTextStream */ MyWidget::MyWidget(QWidget *parent) : QWidget(parent) { //QT中不建议使用char *这种类型的数据类型 QFile file("../MyTest.txt"); file.open(QIODevice::ReadWrite); file.write(QByteArray("abc")); //同样,QFile中也有如下方...