1.怎么让lineedit里面的值随串口发送过来的信息发生变化
void Widget::readData()
{
//设置缓冲区接受数据
QByteArray buf;
buf = serial->readAll();
if(!buf.isEmpty()){
QString str =ui->textEdit->toPlainText();
str +=tr(buf);
ui->textEdit->clear();
ui->textEdit->append(str);
str = str.simplified();
QString x = str.mid(5,2);//湿度
QString y = str.mid(11,2);//温度
QString a = str.mid(13,1);//光照强度
QString z = str.mid(40,7);//气压
ui->HEdit->setText(x);
ui->TEdit->setText(QString(y));
ui->IEdit->setText(a);
ui->AEdit->setText(z+"hPa");
}
buf.clear();