Qt for Python记录3——创建一个Demo

其他 2020-03-28 11:23:48 阅读次数: 0

目录

一.单文件初始化代码

二.多文件Demo

三.Demo快速复制：

1.单文件

2.多文件

一.单文件初始化代码

当我们拿到一个新文件的时候，我们为了便于修改，就不在它创建的类外面写我们的初始化代码，所以我们就得创建一个类，然后继承即可。

class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)#这是UI文件的绘制UI函数
        self.init()
        MainWindow.show()#让窗口显示我们创建好的GUI
    def init(self):
        #下面放置我们的操作函数即可

然后，我们还是要处理我们的主程序（Python3）

import sys
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

至此，一个代码好看一点的程序，我们就写出来了。完整的计算器代码如下：

import sys
from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(358, 287)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setEnabled(True)
        self.pushButton.setGeometry(QtCore.QRect(50, 60, 61, 51))
        self.pushButton.setObjectName("pushButton")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setEnabled(True)
        self.pushButton_2.setGeometry(QtCore.QRect(110, 60, 61, 51))
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_3.setEnabled(True)
        self.pushButton_3.setGeometry(QtCore.QRect(170, 60, 61, 51))
        self.pushButton_3.setObjectName("pushButton_3")
        self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_4.setEnabled(True)
        self.pushButton_4.setGeometry(QtCore.QRect(50, 110, 61, 51))
        self.pushButton_4.setObjectName("pushButton_4")
        self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_5.setEnabled(True)
        self.pushButton_5.setGeometry(QtCore.QRect(110, 110, 61, 51))
        self.pushButton_5.setObjectName("pushButton_5")
        self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_6.setEnabled(True)
        self.pushButton_6.setGeometry(QtCore.QRect(170, 110, 61, 51))
        self.pushButton_6.setObjectName("pushButton_6")
        self.pushButton_7 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_7.setEnabled(True)
        self.pushButton_7.setGeometry(QtCore.QRect(50, 160, 61, 51))
        self.pushButton_7.setObjectName("pushButton_7")
        self.pushButton_8 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_8.setEnabled(True)
        self.pushButton_8.setGeometry(QtCore.QRect(110, 160, 61, 51))
        self.pushButton_8.setObjectName("pushButton_8")
        self.pushButton_9 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_9.setEnabled(True)
        self.pushButton_9.setGeometry(QtCore.QRect(170, 160, 61, 51))
        self.pushButton_9.setObjectName("pushButton_9")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(10, 20, 341, 31))
        self.lineEdit.setText("")
        self.lineEdit.setMaxLength(99999999)
        self.lineEdit.setObjectName("lineEdit")
        self.pushButton_10 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_10.setEnabled(True)
        self.pushButton_10.setGeometry(QtCore.QRect(230, 60, 61, 51))
        self.pushButton_10.setObjectName("pushButton_10")
        self.pushButton_11 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_11.setEnabled(True)
        self.pushButton_11.setGeometry(QtCore.QRect(230, 110, 61, 51))
        self.pushButton_11.setObjectName("pushButton_11")
        self.pushButton_12 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_12.setEnabled(True)
        self.pushButton_12.setGeometry(QtCore.QRect(230, 160, 61, 51))
        self.pushButton_12.setObjectName("pushButton_12")
        self.pushButton_13 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_13.setEnabled(True)
        self.pushButton_13.setGeometry(QtCore.QRect(230, 210, 61, 51))
        self.pushButton_13.setObjectName("pushButton_13")
        self.pushButton_14 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_14.setEnabled(True)
        self.pushButton_14.setGeometry(QtCore.QRect(50, 210, 61, 51))
        self.pushButton_14.setObjectName("pushButton_14")
        self.pushButton_15 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_15.setEnabled(True)
        self.pushButton_15.setGeometry(QtCore.QRect(170, 210, 61, 51))
        self.pushButton_15.setObjectName("pushButton_15")
        self.pushButton_16 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_16.setEnabled(True)
        self.pushButton_16.setGeometry(QtCore.QRect(110, 210, 61, 51))
        self.pushButton_16.setObjectName("pushButton_16")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "这是测试计算器"))
        self.pushButton.setText(_translate("MainWindow", "1"))
        self.pushButton_2.setText(_translate("MainWindow", "2"))
        self.pushButton_3.setText(_translate("MainWindow", "3"))
        self.pushButton_4.setText(_translate("MainWindow", "4"))
        self.pushButton_5.setText(_translate("MainWindow", "5"))
        self.pushButton_6.setText(_translate("MainWindow", "6"))
        self.pushButton_7.setText(_translate("MainWindow", "7"))
        self.pushButton_8.setText(_translate("MainWindow", "8"))
        self.pushButton_9.setText(_translate("MainWindow", "9"))
        self.pushButton_10.setText(_translate("MainWindow", "+"))
        self.pushButton_11.setText(_translate("MainWindow", "-"))
        self.pushButton_12.setText(_translate("MainWindow", "×"))
        self.pushButton_13.setText(_translate("MainWindow", "÷"))
        self.pushButton_14.setText(_translate("MainWindow", "←"))
        self.pushButton_15.setText(_translate("MainWindow", "="))
        self.pushButton_16.setText(_translate("MainWindow", "0"))

class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)
        self.init()
        MainWindow.show()
        
    def init(self):
        self.pushButton.clicked.connect(self.click1)
        self.pushButton_2.clicked.connect(self.click2)
        self.pushButton_3.clicked.connect(self.click3)
        self.pushButton_4.clicked.connect(self.click4)
        self.pushButton_5.clicked.connect(self.click5)
        self.pushButton_6.clicked.connect(self.click6)
        self.pushButton_7.clicked.connect(self.click7)
        self.pushButton_8.clicked.connect(self.click8)
        self.pushButton_9.clicked.connect(self.click9)
        self.pushButton_16.clicked.connect(self.click0)
        self.pushButton_10.clicked.connect(self.clickp)
        self.pushButton_11.clicked.connect(self.clickm)
        self.pushButton_12.clicked.connect(self.clickc)
        self.pushButton_13.clicked.connect(self.clickd)
        self.pushButton_14.clicked.connect(self.clickclear)
        self.pushButton_15.clicked.connect(self.clicke)
        
    def click0(self):
        self.lineEdit.insert('0')

    def click1(self):
        self.lineEdit.insert('1')

    def click2(self):
        self.lineEdit.insert('2')

    def click3(self):
        self.lineEdit.insert('3')

    def click4(self):
        self.lineEdit.insert('4')

    def click5(self):
        self.lineEdit.insert('5')

    def click6(self):
        self.lineEdit.insert('6')

    def click7(self):
        self.lineEdit.insert('7')

    def click8(self):
        self.lineEdit.insert('8')

    def click9(self):
        self.lineEdit.insert('9')

    def clickp(self):
        self.lineEdit.insert('+')

    def clickm(self):
        self.lineEdit.insert('-')

    def clickc(self):
        self.lineEdit.insert('*')

    def clickd(self):
        self.lineEdit.insert('/')

    def clickclear(self):
        self.lineEdit.setText("")

    def clicke(self):
        print(eval(self.lineEdit.text()))
        text = self.lineEdit.text()
        self.lineEdit.setText('%s= %f' % (text, eval(text)))

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

二.多文件Demo

首先，我们与UI文件的相同目录下，创建我们的程序文件，然后，导入我们的UI文件

import sys
from cv.UI_calc import *

假设我们有一个文件夹叫：cv，这个cv文件夹里面有UI_calc.py(界面)和main.py(本程序)，那么我们在main.py里面引用UI_calc里面的文件的所有东西的代码就是

扫描二维码关注公众号，回复： 10244961 查看本文章 
from cv.UI_calc import *

此后和建立单文件Demo差不多，我们的功能设置：

class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)
        self.init()#这里是功能初始化，代码自己写
        MainWindow.show()

然后我们再设置我们的main函数入口：

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

好了，我们的Demo就写好了，这里是两个文件的完整代码

UI_calc：

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(358, 287)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setEnabled(True)
        self.pushButton.setGeometry(QtCore.QRect(50, 60, 61, 51))
        self.pushButton.setObjectName("pushButton")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setEnabled(True)
        self.pushButton_2.setGeometry(QtCore.QRect(110, 60, 61, 51))
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_3.setEnabled(True)
        self.pushButton_3.setGeometry(QtCore.QRect(170, 60, 61, 51))
        self.pushButton_3.setObjectName("pushButton_3")
        self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_4.setEnabled(True)
        self.pushButton_4.setGeometry(QtCore.QRect(50, 110, 61, 51))
        self.pushButton_4.setObjectName("pushButton_4")
        self.pushButton_5 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_5.setEnabled(True)
        self.pushButton_5.setGeometry(QtCore.QRect(110, 110, 61, 51))
        self.pushButton_5.setObjectName("pushButton_5")
        self.pushButton_6 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_6.setEnabled(True)
        self.pushButton_6.setGeometry(QtCore.QRect(170, 110, 61, 51))
        self.pushButton_6.setObjectName("pushButton_6")
        self.pushButton_7 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_7.setEnabled(True)
        self.pushButton_7.setGeometry(QtCore.QRect(50, 160, 61, 51))
        self.pushButton_7.setObjectName("pushButton_7")
        self.pushButton_8 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_8.setEnabled(True)
        self.pushButton_8.setGeometry(QtCore.QRect(110, 160, 61, 51))
        self.pushButton_8.setObjectName("pushButton_8")
        self.pushButton_9 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_9.setEnabled(True)
        self.pushButton_9.setGeometry(QtCore.QRect(170, 160, 61, 51))
        self.pushButton_9.setObjectName("pushButton_9")
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(10, 20, 341, 31))
        self.lineEdit.setText("")
        self.lineEdit.setMaxLength(99999999)
        self.lineEdit.setObjectName("lineEdit")
        self.pushButton_10 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_10.setEnabled(True)
        self.pushButton_10.setGeometry(QtCore.QRect(230, 60, 61, 51))
        self.pushButton_10.setObjectName("pushButton_10")
        self.pushButton_11 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_11.setEnabled(True)
        self.pushButton_11.setGeometry(QtCore.QRect(230, 110, 61, 51))
        self.pushButton_11.setObjectName("pushButton_11")
        self.pushButton_12 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_12.setEnabled(True)
        self.pushButton_12.setGeometry(QtCore.QRect(230, 160, 61, 51))
        self.pushButton_12.setObjectName("pushButton_12")
        self.pushButton_13 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_13.setEnabled(True)
        self.pushButton_13.setGeometry(QtCore.QRect(230, 210, 61, 51))
        self.pushButton_13.setObjectName("pushButton_13")
        self.pushButton_14 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_14.setEnabled(True)
        self.pushButton_14.setGeometry(QtCore.QRect(50, 210, 61, 51))
        self.pushButton_14.setObjectName("pushButton_14")
        self.pushButton_15 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_15.setEnabled(True)
        self.pushButton_15.setGeometry(QtCore.QRect(170, 210, 61, 51))
        self.pushButton_15.setObjectName("pushButton_15")
        self.pushButton_16 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_16.setEnabled(True)
        self.pushButton_16.setGeometry(QtCore.QRect(110, 210, 61, 51))
        self.pushButton_16.setObjectName("pushButton_16")
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "这是测试计算器"))
        self.pushButton.setText(_translate("MainWindow", "1"))
        self.pushButton_2.setText(_translate("MainWindow", "2"))
        self.pushButton_3.setText(_translate("MainWindow", "3"))
        self.pushButton_4.setText(_translate("MainWindow", "4"))
        self.pushButton_5.setText(_translate("MainWindow", "5"))
        self.pushButton_6.setText(_translate("MainWindow", "6"))
        self.pushButton_7.setText(_translate("MainWindow", "7"))
        self.pushButton_8.setText(_translate("MainWindow", "8"))
        self.pushButton_9.setText(_translate("MainWindow", "9"))
        self.pushButton_10.setText(_translate("MainWindow", "+"))
        self.pushButton_11.setText(_translate("MainWindow", "-"))
        self.pushButton_12.setText(_translate("MainWindow", "×"))
        self.pushButton_13.setText(_translate("MainWindow", "÷"))
        self.pushButton_14.setText(_translate("MainWindow", "←"))
        self.pushButton_15.setText(_translate("MainWindow", "="))
        self.pushButton_16.setText(_translate("MainWindow", "0"))

main.py：

import sys
from cv.UI_calc import *

class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)
        self.init()
        MainWindow.show()

    def init(self):
        self.pushButton.clicked.connect(self.click1)
        self.pushButton_2.clicked.connect(self.click2)
        self.pushButton_3.clicked.connect(self.click3)
        self.pushButton_4.clicked.connect(self.click4)
        self.pushButton_5.clicked.connect(self.click5)
        self.pushButton_6.clicked.connect(self.click6)
        self.pushButton_7.clicked.connect(self.click7)
        self.pushButton_8.clicked.connect(self.click8)
        self.pushButton_9.clicked.connect(self.click9)
        self.pushButton_16.clicked.connect(self.click0)
        self.pushButton_10.clicked.connect(self.clickp)
        self.pushButton_11.clicked.connect(self.clickm)
        self.pushButton_12.clicked.connect(self.clickc)
        self.pushButton_13.clicked.connect(self.clickd)
        self.pushButton_14.clicked.connect(self.clickclear)
        self.pushButton_15.clicked.connect(self.clicke)

    def click0(self):
        self.lineEdit.insert('0')

    def click1(self):
        self.lineEdit.insert('1')

    def click2(self):
        self.lineEdit.insert('2')

    def click3(self):
        self.lineEdit.insert('3')

    def click4(self):
        self.lineEdit.insert('4')

    def click5(self):
        self.lineEdit.insert('5')

    def click6(self):
        self.lineEdit.insert('6')

    def click7(self):
        self.lineEdit.insert('7')

    def click8(self):
        self.lineEdit.insert('8')

    def click9(self):
        self.lineEdit.insert('9')

    def clickp(self):
        self.lineEdit.insert('+')

    def clickm(self):
        self.lineEdit.insert('-')

    def clickc(self):
        self.lineEdit.insert('*')

    def clickd(self):
        self.lineEdit.insert('/')

    def clickclear(self):
        self.lineEdit.setText("")

    def clicke(self):
        print(eval(self.lineEdit.text()))
        text = self.lineEdit.text()
        self.lineEdit.setText('%s= %f' % (text, eval(text)))

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

三.Demo快速复制：

1.单文件

import sys
class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)
        self.init()
        MainWindow.show()
        
    def init(self):

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

2.多文件

import sys
from cv.ui import *

class function(Ui_MainWindow):
    def __init__(self):
        self.setupUi(MainWindow)
        self.init()
        MainWindow.show()

    def init(self):

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = function()
    sys.exit(app.exec_())

完美

康娜喵
发布了63 篇原创文章 · 获赞 38 · 访问量 2万+
私信 关注

猜你喜欢

转载自blog.csdn.net/u011017694/article/details/100120657
今日推荐
周排行
LRU cache算法
windows10, 自带的OpenSSH, key权限问题, 文件权限问题
测试用例书写方法
HIVE-默认分隔符的（linux系统的特殊字符）查看，输入和修改
最贵的AMD 7nm显卡来了！这设计 够狂野
java多线程简单demo
[ 转载 ]在Android系统上使用busybox——最简单的方法
QT connect学习
BFSIFT算法分析
Xcode10：library not found for -lstdc++.6.0.9 临时解决
每日归档
更多
2024-08-06(0)
2024-08-05(0)
2024-08-04(0)
2024-08-03(0)
2024-08-02(0)
2024-08-01(0)
2024-07-31(0)
2024-07-30(0)
2024-07-29(0)
2024-07-28(0)

代码天地 © 2018 codetd.com

境外服务器   最新电视剧2022