窗口居中显示

 1 """主窗口居中"""
 2 from PyQt5.QtWidgets import QDesktopWidget, QApplication, QMainWindow
 3 import sys
 4 
 5 class Winform(QMainWindow):
 6 
 7     def __init__(self):
 8         super().__init__()
 9         self.setWindowTitle('主窗口放在屏幕中间例子')
10         self.resize(370, 250)
11         self.center()
12 
13 
14     def center(self):
15         # 计算屏幕的大小
16         screen = QDesktopWidget().screenGeometry()
17         # 获取窗口的大小
18         size = self.geometry()
19         # 将窗口移动到屏幕的中央
20         self.move((screen.width() - size.width())/2, (screen.height() - size.height()) /2 )
21 
22 if __name__ == '__main__':
23     app = QApplication(sys.argv)
24     win = Winform()
25     win.show()
26     sys.exit(app.exec_())

不考虑业务场景，一味的争执技术的高下，都是耍流氓。