PyQt5基础学习-使用partial对绑定槽函数传参

partial的用法和上一节的lambda一致

PartialSlotArg.py

"""
使用Partial对象为槽函数传递参数
"""
from PyQt5.QtWidgets import *
import sys
from functools import partial

class PartialSlotArg(QMainWindow):
    def __init__(self):
        super(PartialSlotArg, self).__init__()
        self.setWindowTitle("使用Partial对象为槽函数传递参数")

        button1 = QPushButton("按钮1")
        button2 = QPushButton("按钮2")
        x = 10 
        y = 20
        button1.clicked.connect(partial(self.onButtonClick, 10, 20))
        button2.clicked.connect(partial(self.onButtonClick, x, y))
        layout = QHBoxLayout()
        layout.addWidget(button1)
        layout.addWidget(button2)
        mainFrame = QWidget()
        mainFrame.setLayout(layout)
        self.setCentralWidget(mainFrame)


    def onButtonClick(self, m, n):
        print("m + n = ", m + n)
        QMessageBox.information(self, "结果", str(m + n))



if __name__ == "__main__":
    app = QApplication(sys.argv)

    main = PartialSlotArg()
    main.show()

    sys.exit(app.exec_())