当使用QTdesinger设计好界面，再使用pyuic转成.py脚本文件后，简单得对内部逻辑进行构造的实示例。
import sys from PyQt5.QtWidgets import QApplication, QMainWindow from mainWindow import * class MyWindow(QMainWindow, Ui_MainWindow): def __init__(self, parent=None): super(MyWindow, self).__init__(parent) self.setupUi(self) self.Buttonname.clicked.connect(self.beginfunc) def beginfunc(self): k = int(self.clusternum.toPlainText()) if __name__ == '__main__': app = QApplication(sys.argv) myWin = MyWindow() myWin.show() sys.exit(app.exec_())