源文件.h中
class Test : public QMainWindow
{
Q_OBJECT
public:
explicit Test(QString path,QWidget *parent = 0);//构造函数有默认值的要放右边,新添加的参数需要放在左边
private:
QString m_path;
}
.cpp文件中:
Test ::Test (QString path,QWidget *parent ) :
QMainWindow(parent),m_path(path),
ui(new Ui::DataTerminal)
{
ui->setupUi(this);
}