Qt中 int ,float ,double转换为QString 有两种方法 1.使用 QString::number(); 如: long a = 63; QString s = QString::number(a, 10); // s == "63" QString t = QString::number(a, 16).toUpper(); // t == "3F" long a = 63; QString s = QString::number(a, 10);
在Qt5之前,串口通信基本依赖于第三方库,下面是我曾接触过的串口通信类库: 名称 语言 平台 QextSerialPort QT C++ Win/Linux http://sourceforge.net/projects/qextserialport/files/ QSerialPort QT C++ QT5已经集成 libserial C++ Linux http://files.cnblogs.com/kyyblabla/libserial-0.5.2.gz.7z 以上串口通信类库通信过
How can I convert a QString to char* and vice versa ?(trolltech) Answer:In order to convert a QString to a char*, then you first need to get a latin1 representation of the string by calling toLatin1() on it which will return a QByteArray. Then call d