PyQt 图解Qt Designer工具的使用方法

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
 <property name="geometry">
 <rect>
 <x>0</x>
 <y>0</y>
 <width>549</width>
 <height>199</height>
 </rect>
 </property>
 <property name="windowTitle">
 <string>用户登录</string>
 </property>
 <widget class="QLabel" name="user_label">
 <property name="geometry">
 <rect>
 <x>50</x>
 <y>40</y>
 <width>61</width>
 <height>21</height>
 </rect>
 </property>
 <property name="text">
 <string>用户名</string>
 </property>
 </widget>
 <widget class="QLineEdit" name="user_lineEdit">
 <property name="geometry">
 <rect>
 <x>130</x>
 <y>40</y>
 <width>113</width>
 <height>20</height>
 </rect>
 </property>
 </widget>
 <widget class="QLabel" name="pwd_label">
 <property name="geometry">
 <rect>
 <x>50</x>
 <y>80</y>
 <width>54</width>
 <height>12</height>
 </rect>
 </property>
 <property name="text">
 <string>密码</string>
 </property>
 </widget>
 <widget class="QLineEdit" name="pwd_lineEdit">
 <property name="geometry">
 <rect>
 <x>130</x>
 <y>70</y>
 <width>113</width>
 <height>20</height>
 </rect>
 </property>
 </widget>
 <widget class="QPushButton" name="login_Button">
 <property name="geometry">
 <rect>
 <x>50</x>
 <y>110</y>
 <width>75</width>
 <height>23</height>
 </rect>
 </property>
 <property name="text">
 <string>登录</string>
 </property>
 </widget>
 <widget class="QPushButton" name="cancel_Button">
 <property name="geometry">
 <rect>
 <x>160</x>
 <y>110</y>
 <width>75</width>
 <height>23</height>
 </rect>
 </property>
 <property name="text">
 <string>退出</string>
 </property>
 </widget>
 <widget class="QTextBrowser" name="user_textBrowser">
 <property name="geometry">
 <rect>
 <x>270</x>
 <y>30</y>
 <width>221</width>
 <height>101</height>
 </rect>
 </property>
 </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'login.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Form(object):
 def setupUi(self, Form):
 Form.setObjectName("Form")
 Form.resize(549, 199)
 self.user_label = QtWidgets.QLabel(Form)
 self.user_label.setGeometry(QtCore.QRect(50, 40, 61, 21))
 self.user_label.setObjectName("user_label")
 self.user_lineEdit = QtWidgets.QLineEdit(Form)
 self.user_lineEdit.setGeometry(QtCore.QRect(130, 40, 113, 20))
 self.user_lineEdit.setObjectName("user_lineEdit")
 self.pwd_label = QtWidgets.QLabel(Form)
 self.pwd_label.setGeometry(QtCore.QRect(50, 80, 54, 12))
 self.pwd_label.setObjectName("pwd_label")
 self.pwd_lineEdit = QtWidgets.QLineEdit(Form)
 self.pwd_lineEdit.setGeometry(QtCore.QRect(130, 70, 113, 20))
 self.pwd_lineEdit.setObjectName("pwd_lineEdit")
 self.login_Button = QtWidgets.QPushButton(Form)
 self.login_Button.setGeometry(QtCore.QRect(50, 110, 75, 23))
 self.login_Button.setObjectName("login_Button")
 self.cancel_Button = QtWidgets.QPushButton(Form)
 self.cancel_Button.setGeometry(QtCore.QRect(160, 110, 75, 23))
 self.cancel_Button.setObjectName("cancel_Button")
 self.user_textBrowser = QtWidgets.QTextBrowser(Form)
 self.user_textBrowser.setGeometry(QtCore.QRect(270, 30, 221, 101))
 self.user_textBrowser.setObjectName("user_textBrowser")

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

 def retranslateUi(self, Form):
 _translate = QtCore.QCoreApplication.translate
 Form.setWindowTitle(_translate("Form", "用户登录"))
 self.user_label.setText(_translate("Form", "用户名"))
 self.pwd_label.setText(_translate("Form", "密码"))
 self.login_Button.setText(_translate("Form", "登录"))
 self.cancel_Button.setText(_translate("Form", "退出"))

# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'connect_me.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!
#导入程序运行必须模块
import sys
#PyQt5中使用的基本控件都在PyQt5.QtWidgets模块中
from PyQt5.QtWidgets import QApplication, QMainWindow
#导入designer工具生成的login模块
from login import Ui_Form

class MyMainForm(QMainWindow, Ui_Form):
 def __init__(self, parent=None):
 super(MyMainForm, self).__init__(parent)
 self.setupUi(self)
if __name__ == "__main__":
 #固定的，PyQt5程序都需要QApplication对象。sys.argv是命令行参数列表，确保程序可以双击运行
 app = QApplication(sys.argv)
 #初始化
 myWin = MyMainForm()
 #将窗口控件显示在屏幕上
 myWin.show()
 #程序运行，sys.exit方法确保程序完整退出。
 sys.exit(app.exec_())

# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'connect_me.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!
#导入程序运行必须模块
import sys
#PyQt5中使用的基本控件都在PyQt5.QtWidgets模块中
from PyQt5.QtWidgets import QApplication, QMainWindow
#导入designer工具生成的login模块
from login import Ui_Form
class MyMainForm(QMainWindow, Ui_Form):
 def __init__(self, parent=None):
 super(MyMainForm, self).__init__(parent)
 self.setupUi(self)
 #添加登录按钮信号和槽。注意display函数不加小括号()
 self.login_Button.clicked.connect(self.display)
 #添加退出按钮信号和槽。调用close函数
 self.cancel_Button.clicked.connect(self.close)
 def display(self):
 #利用line Edit控件对象text()函数获取界面输入
 username = self.user_lineEdit.text()
 password = self.pwd_lineEdit.text()
 #利用text Browser控件对象setText()函数设置界面显示
 self.user_textBrowser.setText("登录成功!\n" + "用户名是: "+ username+ ",密码是： "+ password)

if __name__ == "__main__":
 #固定的，PyQt5程序都需要QApplication对象。sys.argv是命令行参数列表，确保程序可以双击运行
 app = QApplication(sys.argv)
 #初始化
 myWin = MyMainForm()
 #将窗口控件显示在屏幕上
 myWin.show()
 #程序运行，sys.exit方法确保程序完整退出。
 sys.exit(app.exec_())