Python pyqt5 - 登录界面

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, QtWidgets


class 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.translate
        Form.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 sys
    app=QtWidgets.QApplication(sys.argv)
    widget=QtWidgets.QWidget()
    ui=Ui_Form()
    ui.setupUi(widget)
    widget.show()
    sys.exit(app.exec_())