QMainWindow(三）QMessageBox, QFileDialog

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QMessageBox和QFileDialog的静态方法可以快速的生成所需要的对话框。

QMessageBox static methods:

about (QWidget, QString, QString)
aboutQt (QWidget, QString title = QString())
StandardButton critical (QWidget, QString, QString, StandardButtons buttons = QMessageBox.Ok, StandardButton defaultButton = QMessageBox.NoButton)
int critical (QWidget, QString, QString, int, int, int button2 = 0)
int critical (QWidget, QString, QString, QString, QString button1Text = QString(), QString button2Text = QString(), int defaultButtonNumber = 0, int escapeButtonNumber = -1)
StandardButton information (QWidget, QString, QString, StandardButtons buttons = QMessageBox.Ok, StandardButton defaultButton = QMessageBox.NoButton)
int information (QWidget, QString, QString, int, int button1 = 0, int button2 = 0)
int information (QWidget, QString, QString, QString, QString button1Text = QString(), QString button2Text = QString(), int defaultButtonNumber = 0, int escapeButtonNumber = -1)
StandardButton question (QWidget, QString, QString, StandardButtons buttons = QMessageBox.Ok, StandardButton defaultButton = QMessageBox.NoButton)
int question (QWidget, QString, QString, int, int button1 = 0, int button2 = 0)
int question (QWidget, QString, QString, QString, QString button1Text = QString(), QString button2Text = QString(), int defaultButtonNumber = 0, int escapeButtonNumber = -1)
QPixmap standardIcon (Icon)
StandardButton warning (QWidget, QString, QString, StandardButtons buttons = QMessageBox.Ok, StandardButton defaultButton = QMessageBox.NoButton)
int warning (QWidget, QString, QString, int, int, int button2 = 0)
int warning (QWidget, QString, QString, QString, QString button1Text = QString(), QString button2Text = QString(), int defaultButtonNumber = 0, int escapeButtonNumber = -1)

QFileDialog static methods:

QString getExistingDirectory (QWidget parent = None, QString caption = QString(), QString directory = QString(), Options options = QFileDialog.ShowDirsOnly)
QString getOpenFileName (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), Options options = 0)
QString getOpenFileName (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString selectedFilter = None, Options options = 0)
(QString, QString) getOpenFileNameAndFilter (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString initialFilter = QString(), Options options = 0)
QStringList getOpenFileNames (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), Options options = 0)
QStringList getOpenFileNames (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString selectedFilter = None, Options options = 0)
(QString, QString) getOpenFileNamesAndFilter (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString initialFilter = QString(), Options options = 0)
QString getSaveFileName (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), Options options = 0)
QString getSaveFileName (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString selectedFilter = None, Options options = 0)
(QString, QString) getSaveFileNameAndFilter (QWidget parent = None, QString caption = QString(), QString directory = QString(), QString filter = QString(), QString initialFilter = QString(), Options options = 0)