方法一 装饰器法
1 import sys
2 from PyQt5.QtWidgets import QApplication, QWidget, QPushButton, QHBoxLayout,QLabel
3 from PyQt5.QtGui import QColor
4 from PyQt5.QtCore import pyqtProperty,Qt
5
6
7 class Demo(QWidget):
8 def __init__(self):
9 super(Demo, self).__init__()
10 self.c=QColor(Qt.red)
11
12 @pyqtProperty(QColor) #获取属性,注意要传入属性的类型
13 def color(self):
14 return self.c
15
16 @color.setter #设置属性
17 def color(self,value):
18 self.c=value
19
20
21 if __name__ == '__main__':
22 app = QApplication(sys.argv)
23 demo = Demo()
24
25 print(demo.color)
26 demo.color=QColor(90,90,90)
27 print(demo.color)
28
29 demo.show()
30 sys.exit(app.exec_())
方法二 函数法
1 import sys
2 from PyQt5.QtWidgets import QApplication, QWidget
3 from PyQt5.QtGui import QColor
4 from PyQt5.QtCore import pyqtProperty,Qt
5
6 class Demo(QWidget):
7 def __init__(self):
8 super(Demo, self).__init__()
9 self.c=QColor(Qt.red)
10
11 def get_color(self):
12 return self.c
13
14 def set_color(self, value):
15 self.c = value
16
17 color = pyqtProperty(QColor, fget=get_color, fset=set_color) #添加属性
18 #第一个参数要填属性的数据类型
19
20
21 if __name__ == '__main__':
22 app = QApplication(sys.argv)
23 demo = Demo()
24
25 print(demo.color)
26 demo.color=QColor(90,90,90)
27 print(demo.color)
28
29 demo.show()
30 sys.exit(app.exec_())
