PyQt5 事件

import sys
from PyQt5.QtWidgets import QWidget, QApplication, QMessageBox, QDesktopWidget, QPushButton, QLabel
from  PyQt5.QtCore import Qt, QEvent
from  PyQt5.QtGui import QPainter, QPixmap


class Mouse(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        print("init ui")
        self.btnTest = QPushButton("安安", self)
        self.move_lbl = QLabel("鼠标位置", self)
        self.mousepos_lbl = QLabel("鼠标坐标", self)
        self.mousepos_lbl.setStyleSheet("QLabel{color:#fff;font-size:16px;}")
        self.mousepos_lbl.setGeometry(100, 100, 100, 100)

        self.mousewinpos_lbl = QLabel("win鼠标坐标", self)
        self.mousewinpos_lbl.setStyleSheet("QLabel{color:#fff;font-size:16px;}")

        self.setGeometry(300, 300, 500, 500)
        self.setWindowTitle("鼠标坐标获取")
        self.center()

    def paintEvent(self, event):
        painter = QPainter(self)
        pic = QPixmap("bg.jpg")
        painter.drawPixmap(0, 0, self.width(), self.height(), pic)
        # super().paintEvent(event)

    def resizeEvent(self, event):
        w = self.width()
        h = self.height()

        wbtn = self.btnTest.width()
        hbtn = self.btnTest.height()

        self.btnTest.setGeometry((w - wbtn) / 2, (h - hbtn) / 2, wbtn, hbtn)

    def closeEvent(self, event):
        defaultBtn = QMessageBox.NoButton
        result = QMessageBox.question(self, "Question 消息框", "closeEvent 触发", QMessageBox.Yes | QMessageBox.No,
                                      defaultBtn)
        if result == QMessageBox.Yes:
            event.accept()  # 接受
        else:
            event.ignore()  # 不关闭

    def mousePressEvent(self, event):
        pt = event.pos()
        # pt= event.localPos() # 鼠标位置： QPoint 与 pos() 相同
        # pt = event.windowPos() # 鼠标位置： QPointF 与 pos() 相同
        if (event.button() == Qt.LeftButton):
            self.move_lbl.setText("(x,y)=(%d,%d)" % (pt.x(), pt.y()))
            rect = self.move_lbl.geometry()
            self.move_lbl.setGeometry(pt.x(), pt.y(), rect.width(), rect.height())
            self.move_lbl.adjustSize()

    def mouseMoveEvent(self, event):
        pt = event.pos()
        win = event.globalPos()
        # pt= event.localPos() # 鼠标位置： QPoint 与 pos() 相同
        # pt = event.windowPos() # 鼠标位置： QPointF 与 pos() 相同

        self.mousepos_lbl.setText("(x,y)=(%d,%d)" % (pt.x(), pt.y()))
        self.mousepos_lbl.adjustSize()
        self.mousewinpos_lbl.setText("(x,y)=(%d,%d)" % (win.x(), win.y()))
        self.mousewinpos_lbl.adjustSize()

    def keyPressEvent(self, event):
        rect = self.btnTest.geometry()
        key = event.key()
        print(key)
        if key in set([Qt.Key_A, Qt.Key_Left]):
            self.btnTest.setGeometry(rect.left() - 20, rect.top(), rect.width(), rect.height())
        elif key in set([Qt.Key_D, Qt.Key_Right]):
            self.btnTest.setGeometry(rect.left() + 20, rect.top(), rect.width(), rect.height())
        elif key in set([Qt.Key_W, Qt.Key_Up]):
            self.btnTest.setGeometry(rect.left(), rect.top() - 20, rect.width(), rect.height())
        elif key in set([Qt.Key_S, Qt.Key_Down]):
            self.btnTest.setGeometry(rect.left(), rect.top() + 20, rect.width(), rect.height())

        self.btnTest.setText("(x,y)=(%d,%d)" % (rect.left(), rect.top()))

    def center(self):
        qr = self.frameGeometry()
        cp = QDesktopWidget().availableGeometry().center()
        qr.moveCenter(cp)
        self.move(qr.topLeft())


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mouse = Mouse()
    mouse.show()
    sys.exit(app.exec_())

python监听事件

from pynput.keyboard import Listener
# pip install pynput
def on_press(key):
    print(key)
with Listener(on_press=on_press) as listerner:
    listerner.join()

Listener.stop()