使用python第三方模块PyQy5可以非常简单方便的设计出简洁实用的界面，还可以使用 qss 对界面进一步美化。
效果展示：
完整实现代码：
# -*- coding: utf-8 -*-from PyQt5 import QtCore, QtGui, QtWidgetsclass Ui_Form(object):def setupUi(self, Form):Form.setObjectName("Form")Form.setStyleSheet("QLineEdit{border-radius:10px}""#Form{border-image:url(Background.jpg);}")desktop = QtWidgets.QApplication.desktop()Form.setFixedSize(desktop.width()//2, desktop.height()//2)font = QtGui.QFont()font.setPointSize(12)Form.setFont(font)self.frame = QtWidgets.QFrame(Form)self.frame.setStyleSheet("QFrame{background-color:rgb(205,205,205)}""QFrame{border-radius:10px}")op = QtWidgets.QGraphicsOpacityEffect()op.setOpacity(0.5)self.frame.setGraphicsEffect(op)self.frame.setGeometry(QtCore.QRect(Form.width()//2, 30, Form.width()//2-30, Form.height()-60))self.frame.setFrameShadow(QtWidgets.QFrame.Raised)self.frame.setObjectName("frame")self.via = QtWidgets.QLabel(self.frame)pix = QtGui.QPixmap('via.png')self.via.setGeometry(self.frame.width()//2-100,20,200,200)self.via.setPixmap(pix)# self.via.setStyleSheet("border: 2px solid red")self.via.setScaledContents(True)self.usernameLabel = QtWidgets.QLabel(self.frame)self.usernameLabel.setGeometry(QtCore.QRect(100, 280, 70, 30))self.usernameLabel.setObjectName("usernameLabel")self.usernameLabel.setFont(font)self.usernameEdit = QtWidgets.QLineEdit(self.frame)self.usernameEdit.setGeometry(QtCore.QRect(180, 280, 180, 30))self.usernameEdit.setText("")self.usernameEdit.setObjectName("usernameEdit")self.usernameEdit.setFont(font)self.passwordLabel = QtWidgets.QLabel(self.frame)self.passwordLabel.setGeometry(QtCore.QRect(100, 320, 70, 30))self.passwordLabel.setObjectName("passwordLabel")self.passwordLabel.setFont(font)self.passwordEdit = QtWidgets.QLineEdit(self.frame)self.passwordEdit.setGeometry(QtCore.QRect(180, 320, 180, 30))self.passwordEdit.setObjectName("passwordEdit")self.passwordEdit.setEchoMode(QtWidgets.QLineEdit.Password)# self.passwordEdit.setFont(font)self.checkBox = QtWidgets.QCheckBox(self.frame)self.checkBox.setGeometry(QtCore.QRect(100, 360, 220, 20))self.checkBox.setObjectName("checkBox")self.buttonBox = QtWidgets.QDialogButtonBox(self.frame)self.buttonBox.setGeometry(QtCore.QRect(140, 400, 180, 30))self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Close|QtWidgets.QDialogButtonBox.Ok)self.buttonBox.button(QtWidgets.QDialogButtonBox.Ok).setText("登录")self.buttonBox.button(QtWidgets.QDialogButtonBox.Ok).setStyleSheet("QPushButton{color:black}""QPushButton:hover{color:red}""QPushButton{background-color:rgb(180,180,180)}""QPushButton{border:2px}""QPushButton{border-radius:10px}""QPushButton{padding:2px 4px}""QPushButton{font-size:14pt}")self.buttonBox.button(QtWidgets.QDialogButtonBox.Close).setText("退出")self.buttonBox.button(QtWidgets.QDialogButtonBox.Close).setStyleSheet("QPushButton{color:black}""QPushButton:hover{color:red}""QPushButton{background-color:rgb(180,180,180)}""QPushButton{border:2px}""QPushButton{border-radius:10px}""QPushButton{padding:2px 4px}""QPushButton{font-size:14pt}")self.buttonBox.setObjectName("buttonBox")self.retranslateUi(Form)QtCore.QMetaObject.connectSlotsByName(Form)def retranslateUi(self, Form):_translate = QtCore.QCoreApplication.translateForm.setWindowTitle(_translate("Form", "Form"))self.usernameLabel.setText(_translate("Form", "用户名"))self.passwordLabel.setText(_translate("Form", "密 码"))self.checkBox.setText(_translate("Form", "记住用户名和密码"))
if __name__=="__main__":import sysapp=QtWidgets.QApplication(sys.argv)widget=QtWidgets.QWidget()ui=Ui_Form()ui.setupUi(widget)widget.show()sys.exit(app.exec_())