QString 和 char *之間互轉

QString 轉 char*

QString strUserName;
strUserName.toLatin1().data();

char * 轉 QString
QString tmDevIP = QString(QLatin1String(char *ch_abc));

QString str = QString::fromLocal8Bit(char *ch_abc);

int 轉 QString
QString str = QString::number(count);