PyQt5-对话框控件使用（QMessageBox）

 1 #QMessageBox消息框使用
 2 from PyQt5.QtWidgets import  QVBoxLayout,QWidget,QApplication ,QHBoxLayout,QDialog,QPushButton,QMessageBox
 3 
 4 from PyQt5.QtGui import QIcon,QPixmap,QFont
 5 from PyQt5.QtCore import  Qt
 6 
 7 import sys
 8 
 9 class WindowClass(QWidget):
10 
11     def __init__(self,parent=None):
12 
13         super(WindowClass, self).__init__(parent)
14         layout=QVBoxLayout()
15         self.btn=QPushButton()
16         self.btn.setText("显示消息框")
17         self.btn.clicked.connect(self.showMessageBox)
18         self.resize(500,500)
19         layout.addWidget(self.btn)
20 
21         self.setLayout(layout)
22 
23     def showMessageBox(self):
24        res_1= QMessageBox.information(self,"标题","消息对话框正文！",QMessageBox.Yes|QMessageBox.No,QMessageBox.Yes)
25        print(res_1)
26        res_2 = QMessageBox.question(self, "标题", "消息对话框正文！", QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
27        print(res_2)
28        res_3 = QMessageBox.warning(self, "标题", "消息对话框正文！", QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
29        print(res_3)
30        res_4 = QMessageBox.critical(self, "标题", "消息对话框正文！", QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
31        print(res_4)
32        res_5 = QMessageBox.about(self, "标题", "消息对话框正文！" )
33        print(res_5)
34 
35 if __name__=="__main__":
36     app=QApplication(sys.argv)
37     win=WindowClass()
38     win.show()
39     sys.exit(app.exec_())