使用Sender()函数

// An highlighted block
class MyWindow(QWidget):def __init__(self):super(MyWindow, self).__init__()self.setui()# ============================================= #def calculate(self):button = self.sender()print("button:{}".format(button.text()))def setui(self):data = [["7","8","9","+"],["4","5","6","-"],["1","2","3","*"],["0",".","=","/"]]for row_num,row_data in enumerate(data):for col_num,col_data in enumerate(row_data):button = QPushButton(col_data)button.clicked.connect((self.calculate))grid_layout.addWidget(button,row_num,col_num)