PySide6 调用从主窗口打开新的主窗口

from PySide6 import QtWidgets from ui_Login import* //ui_Login 主文件引用 import sys if __name__ == "__main__": app = QtWidgets.QApplication(sys.argv) starter = Ui_MainWindow() //Class类 w = QMainWindow() starter.setupUi(w) w.show() sys.exit(app.exec_())