pyqt5界面切换

#主要的思路就是创建两个frame（如果有两个以上同理）使用setVisible()函数显示或者隐藏frame 参数是bool值
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *class logindialog(QDialog):def __init__(self, *args, **kwargs):super().__init__(*args, **kwargs)self.setWindowTitle('登录界面')self.resize(200, 200)self.setFixedSize(self.width(), self.height())self.setWindowFlags(Qt.WindowCloseButtonHint)self.frame = QFrame(self)self.verticalLayout = QVBoxLayout(self.frame)self.lineEdit_account = QLineEdit()self.lineEdit_account.setPlaceholderText("请输入账号")self.verticalLayout.addWidget(self.lineEdit_account)self.lineEdit_password = QLineEdit()self.lineEdit_password.setPlaceholderText("请输入密码")self.verticalLayout.addWidget(self.lineEdit_password)self.pushButton_enter = QPushButton()self.pushButton_enter.setText("进入下一个界面")self.verticalLayout.addWidget(self.pushButton_enter)self.frame1 = QFrame(self)self.verticalLayout = QVBoxLayout(self.frame1)self.pushButton_quit = QPushButton()self.pushButton_quit.setText("回到主页面")self.verticalLayout.addWidget(self.pushButton_quit)self.frame1.setVisible(False)self.pushButton_enter.clicked.connect(self.on_pushButton_enter_clicked)self.pushButton_quit.clicked.connect(self.on_pushButton_enter_clicked_1)def on_pushButton_enter_clicked(self):self.frame1.setVisible(True)self.frame.setVisible(False)def on_pushButton_enter_clicked_1(self):self.frame1.setVisible(False)self.frame.setVisible(True)if __name__ == "__main__":app = QApplication(sys.argv)dialog = logindialog()if dialog.exec_() == QDialog.Accepted:sys.exit(app.exec_())