效果展示

输入密码，密码错误，弹出提示

密码正确，弹出提示并且关闭原窗口

代码（只提供重要关键主代码）lxh_log.py代码：

import sys

from PySide6.QtWidgets import QApplication, QWidget, QPushButton

from pass_t import Ui_Form_T
from pass_f import Ui_Form_F
from lxh import Ui_Form
from PySide6.QtCore import Qt


class MyWidget(Ui_Form, QWidget):
    def __init__(self):
        super().__init__()
        self.setupUi(self)
        self.btn_log.clicked.connect(btn_log_slot)


class pass_f(Ui_Form_F, QWidget):
    def __init__(self):
        super().__init__()
        self.setupUi(self)


class pass_t(Ui_Form_T, QWidget):
    def __init__(self):
        super().__init__()
        self.setupUi(self)


def btn_log_slot():
    name = myWidget.line_name.text()
    password = myWidget.line_pas.text()
    if name == 'admin' and password == '123456':
        myWidget.close()
        pass_f.show()
    else:
        pass_t.show()
        myWidget.line_name.clear()
        myWidget.line_pas.clear()


if __name__ == "__main__":
    app = QApplication(sys.argv)
    myWidget = MyWidget()
    pass_f = pass_f()
    pass_t = pass_t()
    myWidget.setWindowFlag(Qt.WindowType.FramelessWindowHint)

    myWidget.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
    pass_f.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
    pass_t.setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground)
    myWidget.show()
    sys.exit(app.exec())

lxh文件夹存放图片文件信息