https://img-blog.csdnimg.cn/7630017d3ee444eab9bdedf8d48d575f.png

                                

from PyQt5.Qt import *
import sys
class MyQwidget(QWidget):def __init__(self):super().__init__()def showEvent(self, a0) -> None:print("窗口被展示出来",a0)def closeEvent(self,a0) -> bool:print("窗口被关闭了")def moveEvent(self, a0) -> None:print("窗口被移动了")def resizeEvent(self, a0) -> None:print("窗口改变了尺寸大小")def enterEvent(self, a0) -> None:print("鼠标进来了")self.setStyleSheet("background-color: yellow;")def leaveEvent(self, a0) -> None:print("鼠标移出了控件范围了")self.setStyleSheet("background-color: green;")def mousePressEvent(self, a0) -> None:print("鼠标被按下了")def mouseReleaseEvent(self, a0) -> None:print("鼠标被释放")def mouseDoubleClickEvent(self, a0) -> None:print("鼠标双击")def mouseMoveEvent(self, a0) -> None:print("鼠标移动了")def keyPressEvent(self, a0) -> None:print("键盘上某一个按键被按下了")def keyReleaseEvent(self, a0) -> None:print("键盘上某一个按键被释放了")app = QApplication(sys.argv)
win = MyQwidget()
win.setWindowTitle("鼠标操作的相关案例")
win.move(200, 200)win.show()sys.exit(app.exec_())

 使用方法