Qt 十六进制与浮点数相互转换

浮点数转十六进制

1 QString strFloat = ui.float_six1->text(); 2 float f = strFloat.toFloat(); 3 int i = *((int *)&f); 4 QString float_str = QString("%1").arg(i, 4, 16, QLatin1Char('0')); 5 ui.float_six2->setText(float_str );

十六进制转浮点数

1 QString strHex = ui.six_float1->text(); 2 int c = strHex.toInt(nullptr, 16); 3 float d = *(float*)&c; 4 QString radiation = QString("%1").arg(d); 5 ui.six_float2->setText(radiation);