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);
