PyQt5在QWidget窗体中显示Qwidget的自定义类

 1 from PyQt5.QtCore import *
 2 from PyQt5.QtGui import *
 3 from PyQt5.QtWidgets import *
 4 
 5 
 6 
 7 class MyWindow(QWidget):
 8     def __init__(self):
 9         super(MyWindow,self).__init__()
10         self.resize(400, 300)
11         
12         # 添加原生QWidget
13         self.widget = QWidget(self) # 注意QWidget(self) 内的self!!
14         self.widget.setGeometry(10,10,380,250)
15         self.widget.setStyleSheet("background-color:grey;")
16         
17         # 添加编辑框（QLineEdit）
18         self.lineEdit = QLineEdit("0",self) # 注意QLineEdit("0",self) 内的self!!
19         self.lineEdit.setGeometry(10,270,380,20)
20 
21         self.setWindowTitle("1、原生QWidget")
22         
23         
24 if __name__ == ‘__main__‘:
25     import sys
26     app = QApplication(sys.argv)
27     dialog = MyWindow()
28     dialog.show();
29     sys.exit(app.exec_())   

 1 from PyQt5.QtCore import *
 2 from PyQt5.QtGui import *
 3 from PyQt5.QtWidgets import *
 4 
 5 
 6 
 7 class MyWindow(QWidget):
 8     def __init__(self):
 9         super(MyWindow,self).__init__()
10         self.resize(400, 300)
11         layout = QGridLayout()
12 
13         # 添加原生QWidget
14         self.widget = QWidget()
15         self.widget.setStyleSheet("background-color:grey;")
16         
17         # 添加编辑框（QLineEdit）
18         self.lineEdit = QLineEdit("0")
19 
20         # 放入布局内
21         layout.addWidget(self.widget,0,0)
22         layout.addWidget(self.lineEdit,1,0)
23         self.setLayout(layout)
24 
25         self.setWindowTitle("2、原生QWidget")
26         
27 if __name__ == ‘__main__‘:
28     import sys
29     app = QApplication(sys.argv)
30     dialog = MyWindow()
31     dialog.show();
32     sys.exit(app.exec_())   

 1 from PyQt5.QtCore import *
 2 from PyQt5.QtGui import *
 3 from PyQt5.QtWidgets import *
 4 
 5 
 6 class MyWidget(QWidget):
 7     def __init__(self, parent=None):
 8         super(MyWidget,self).__init__(parent)
 9 
10         #QWidget派生类里面要放个东西！！（不放东西的话，我也不会）
11         self.gb = QGroupBox(self)
12         self.gb.setGeometry(0,0,200,200) #一定要有个东西把它撑起来！！不然看不到
13         self.setStyleSheet("background-color:grey;")
14 
15         self.do_something()
16         
17     def do_something(self):
18         pass
19 
20 
21 class MyWindow(QWidget):
22     def __init__(self, parent=None):
23         super(MyWindow,self).__init__(parent)
24         self.resize(400,300)
25 
26         # 添加自定义部件（MyWidget）
27         self.widget = MyWidget(self)
28         self.widget.setGeometry(10,10,380,240)
29 
30         
31         # 添加编辑框（QLineEdit）
32         self.lineEdit = QLineEdit("0",self)
33         self.lineEdit.setGeometry(10,260,380,20)
34 
35         self.setWindowTitle("3、QWidget的派生类")
36         
37 if __name__ == ‘__main__‘:
38     import sys
39     app = QApplication(sys.argv)
40     window = MyWindow()
41     window.show();
42     sys.exit(app.exec_())   

 1 from PyQt5.QtCore import *
 2 from PyQt5.QtGui import *
 3 from PyQt5.QtWidgets import *
 4 
 5 class MyWidget(QWidget):
 6     def __init__(self, parent=None):
 7         super(MyWidget,self).__init__(parent)
 8         
 9         #QWidget派生类里面要放个东西！！（不放东西的话，我也不会）
10         self.gb = QGroupBox(self)
11         self.gb.setGeometry(0,0,200,200) #一定要有个东西把它撑起来！！不然看不到
12         self.setStyleSheet("background-color:red;")
13         self.do_something()
14         
15     def do_something(self):
16         pass
17 
18 
19 
20 class MyWindow(QWidget):
21     def __init__(self):
22         super(MyWindow,self).__init__()
23         self.resize(400,300)
24         layout = QGridLayout()
25         
26         # 添加自定义部件（MyWidget）
27         self.widget = MyWidget(self) # sizeHint() = QSize(-1, -1)
28         self.widget.setStyleSheet("background-color:red;")
29         
30         # 添加编辑框（QLineEdit）
31         self.lineEdit = QLineEdit("0",self) # sizeHint() = QSize(75, 20)
32 
33         # 放入布局内
34         layout.addWidget(self.widget,0,0)
35         layout.addWidget(self.lineEdit,1,0)
36         self.setLayout(layout)
37 
38 
39         
40 if __name__ == ‘__main__‘:
41     import sys
42     app = QApplication(sys.argv)
43     window = MyWindow()
44     window.show();
45     sys.exit(app.exec_())