目錄

1、設(shè)計ui界面

2、設(shè)計邏輯代碼，實現(xiàn)登錄界面跳轉(zhuǎn)

3、結(jié)果

1、設(shè)計ui界面

設(shè)計后的ui界面

在這里可以設(shè)置密碼不顯示

這里可以設(shè)置快捷鍵

最后將ui界面轉(zhuǎn)為py文件后獲得的邏輯代碼為：（文件名為Login.py）

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'longui.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(383, 208)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(150, 140, 75, 23))
        self.pushButton.setObjectName("pushButton")
        self.widget = QtWidgets.QWidget(self.centralwidget)
        self.widget.setGeometry(QtCore.QRect(100, 50, 41, 61))
        self.widget.setObjectName("widget")
        self.verticalLayout = QtWidgets.QVBoxLayout(self.widget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setObjectName("verticalLayout")
        self.label = QtWidgets.QLabel(self.widget)
        self.label.setObjectName("label")
        self.verticalLayout.addWidget(self.label)
        self.label_2 = QtWidgets.QLabel(self.widget)
        self.label_2.setObjectName("label_2")
        self.verticalLayout.addWidget(self.label_2)
        self.widget1 = QtWidgets.QWidget(self.centralwidget)
        self.widget1.setGeometry(QtCore.QRect(140, 50, 131, 61))
        self.widget1.setObjectName("widget1")
        self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.widget1)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setObjectName("verticalLayout_2")
        self.lineEdit = QtWidgets.QLineEdit(self.widget1)
        self.lineEdit.setObjectName("lineEdit")
        self.verticalLayout_2.addWidget(self.lineEdit)
        self.lineEdit_2 = QtWidgets.QLineEdit(self.widget1)
        self.lineEdit_2.setEchoMode(QtWidgets.QLineEdit.Password)
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.verticalLayout_2.addWidget(self.lineEdit_2)
        MainWindow.setCentralWidget(self.centralwidget)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "登錄"))
        self.pushButton.setShortcut(_translate("MainWindow", "Return")) # 設(shè)置快捷鍵
        self.label.setText(_translate("MainWindow", "賬號："))
        self.label_2.setText(_translate("MainWindow", "密碼："))

2、設(shè)計邏輯代碼，實現(xiàn)登錄界面跳轉(zhuǎn)

這里登錄后，我們轉(zhuǎn)到另外一個窗口。這里我們結(jié)合以下文章實現(xiàn)界面跳轉(zhuǎn)：Pyqt5打開電腦攝像頭進(jìn)行拍照_清純世紀(jì)的博客-CSDN博客。

邏輯代碼如下：（文件名為Login_mian.py）

from Login import Ui_MainWindow
from Camera_main import *

class login_window(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(login_window, self).__init__()
        self.setupUi(self)  # 創(chuàng)建窗體對象
        self.init()
        self.admin = "123456"
        self.Password = "123456"

    def init(self):
        self.pushButton.clicked.connect(self.login_button)  # 連接槽

    def login_button(self):
        if self.lineEdit.text() == "":
            QMessageBox.warning(self, '警告', '賬號不能為空，請輸入！')
            return None

        if self.lineEdit_2.text() == "":
            QMessageBox.warning(self, '警告', '密碼不能為空，請輸入！')
            return None

        if (self.lineEdit.text() == self.admin) and self.lineEdit_2.text() == self.Password:
            # 1打開新窗口
            Ui_Main.show()
            # 2關(guān)閉本窗口
            self.close()
        else:
            QMessageBox.critical(self, '錯誤', '賬號或密碼錯誤！')
            self.lineEdit.clear()
            return None

if __name__ == '__main__':
    from PyQt5 import QtCore
    QtCore.QCoreApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling)  # 自適應(yīng)分辨率
    app = QtWidgets.QApplication(sys.argv)
    window = login_window()
    Ui_Main = Open_Camera()  # 生成主窗口的實例
    window.show()
    sys.exit(app.exec_())

3、結(jié)果

注意：兩個界面的函數(shù)不能一樣，因為一般沒有更改的用PyUIC直接生成的.py文件的函數(shù)名是一樣的，要進(jìn)行更改。

參考：暫未成功人士文章來源地址http://www.zghlxwxcb.cn/news/detail-654739.html

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