[Qt5] [QString] 文字列連結 1) +, += 演算子 QString str = "A"; str += "B"; qDebug()<

[Qt5] [型変換] how to convert int to QString int型からQString型への型変換の方法 Exanple 1) int i = 42; QString s = QString::number(i); Exanple 2) int myNumber = 13; QString printable = QStringLiteral("My number is %1.").arg(myNumber ); 【☆…