Pyqt5初步(1)——一个计算器

麦田孤望者

弄了个Pyqt5 也是python GUI的一种
不得不说功能是真的强大

还有 为了每次新建一个项目不那么麻烦，我还写了一个create.py也贴在这里吧 放在最后 把创建项目重复的部分都自动创建了
这是个计算器
emmm本来是昨天写完的但是太晚了就没发出来...而且忘加小数点了
我是用的Qt Designer来布置
创建的是widdget

main.py 内容

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import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from functools import partial
import demo03


class Math_():
    def __init__(self):
        self.txt=''
        self.a=0
        #ui.lcdNumber_out.setDigitCount(5)
    
    def container(self,num):
        self.txt += str(num)
        print('\r'+self.txt,flush=True,end='')
        ui.output.setText(self.txt)
    def count(self):
        #print('self.a='+self.txt)
        a =eval(self.txt)
        #$print(a)
        ui.lcdNumber_out.display(a)
        self.txt = str(a)
        ui.output.setText(str(a))
    def zero(self,ui):
        self.container('0')
    def one(self,ui):
        self.container('1')
    def two(self,ui):
        self.container('2')
    def three(self,ui):
        self.container('3')
    def four(self,ui):
        self.container('4')
    def five(self,ui):
        self.container('5')
    def six(self,ui):
        self.container('6')
    def seven(self,ui):
        self.container('7')
    def eight(self,ui):
        self.container('8')
    def nine(self,ui):
        self.container('9')
    def jia(self,ui):
        self.container('+')
    def jian(self,ui):
        self.container('-')
    def cheng(self,ui):
        self.container('*')
    def chu(self,ui):
        self.container('/')
    def dengyu(self,ui):
        self.count()
    def ce(self,ui):
        ui.output.setText('')
        self.txt=''
        print('')
        ui.lcdNumber_out.display(0)
    
    
b = Math_()
    

if __name__ == '__main__':
    app = QApplication(sys.argv)
    MainWindow = QMainWindow()
    ui = demo03.Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    ui.pushButton_0.clicked.connect(partial(b.zero, ui))
    ui.pushButton_1.clicked.connect(partial(b.one, ui))
    ui.pushButton_2.clicked.connect(partial(b.two, ui))
    ui.pushButton_3.clicked.connect(partial(b.three, ui))
    ui.pushButton_4.clicked.connect(partial(b.four, ui))
    ui.pushButton_5.clicked.connect(partial(b.five, ui))
    ui.pushButton_6.clicked.connect(partial(b.six, ui))
    ui.pushButton_7.clicked.connect(partial(b.seven, ui))
    ui.pushButton_8.clicked.connect(partial(b.eight, ui))
    ui.pushButton_9.clicked.connect(partial(b.nine, ui))
    ui.pushButton_jia.clicked.connect(partial(b.jia, ui))
    ui.pushButton_jian.clicked.connect(partial(b.jian, ui))
    ui.pushButton_cheng.clicked.connect(partial(b.cheng, ui))
    ui.pushButton_chu.clicked.connect(partial(b.chu, ui))
    ui.pushButton_dengyu.clicked.connect(partial(b.dengyu, ui))
    ui.pushButton_ce.clicked.connect(partial(b.ce, ui))
    MainWindow.setFixedSize(MainWindow.width(), MainWindow.height())

    sys.exit(app.exec_())
    

demo03.py 内容

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

# Form implementation generated from reading ui file 'demo03.ui'
#
# Created by: PyQt5 UI code generator 5.13.0
#
# WARNING! All changes made in this file will be lost!


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(271, 308)
        self.pushButton_5 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_5.setGeometry(QtCore.QRect(61, 207, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_5.setFont(font)
        self.pushButton_5.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_5.setObjectName("pushButton_5")
        self.frame = QtWidgets.QFrame(MainWindow)
        self.frame.setGeometry(QtCore.QRect(9, 9, 253, 94))
        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame.setObjectName("frame")
        self.lcdNumber_out = QtWidgets.QLCDNumber(self.frame)
        self.lcdNumber_out.setEnabled(True)
        self.lcdNumber_out.setGeometry(QtCore.QRect(0, 0, 251, 51))
        font = QtGui.QFont()
        font.setPointSize(11)
        font.setBold(True)
        font.setWeight(75)
        self.lcdNumber_out.setFont(font)
        self.lcdNumber_out.setDigitCount(15)
        self.lcdNumber_out.setProperty("intValue", 0)
        self.lcdNumber_out.setObjectName("lcdNumber_out")
        self.output = QtWidgets.QTextBrowser(self.frame)
        self.output.setEnabled(True)
        self.output.setGeometry(QtCore.QRect(0, 60, 251, 31))
        font = QtGui.QFont()
        font.setPointSize(15)
        self.output.setFont(font)
        self.output.setObjectName("output")
        self.pushButton_cheng = QtWidgets.QPushButton(MainWindow)
        self.pushButton_cheng.setGeometry(QtCore.QRect(165, 256, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_cheng.setFont(font)
        self.pushButton_cheng.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_cheng.setObjectName("pushButton_cheng")
        self.pushButton_9 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_9.setGeometry(QtCore.QRect(113, 158, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_9.setFont(font)
        self.pushButton_9.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_9.setObjectName("pushButton_9")
        self.pushButton_8 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_8.setGeometry(QtCore.QRect(61, 158, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_8.setFont(font)
        self.pushButton_8.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_8.setObjectName("pushButton_8")
        self.pushButton_4 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_4.setGeometry(QtCore.QRect(9, 207, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_4.setFont(font)
        self.pushButton_4.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_4.setObjectName("pushButton_4")
        self.pushButton_jian = QtWidgets.QPushButton(MainWindow)
        self.pushButton_jian.setGeometry(QtCore.QRect(217, 207, 45, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_jian.setFont(font)
        self.pushButton_jian.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_jian.setObjectName("pushButton_jian")
        self.pushButton_6 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_6.setGeometry(QtCore.QRect(113, 207, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_6.setFont(font)
        self.pushButton_6.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_6.setObjectName("pushButton_6")
        self.pushButton_jia = QtWidgets.QPushButton(MainWindow)
        self.pushButton_jia.setGeometry(QtCore.QRect(165, 207, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_jia.setFont(font)
        self.pushButton_jia.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_jia.setObjectName("pushButton_jia")
        self.pushButton_ce = QtWidgets.QPushButton(MainWindow)
        self.pushButton_ce.setGeometry(QtCore.QRect(9, 109, 251, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_ce.setFont(font)
        self.pushButton_ce.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_ce.setObjectName("pushButton_ce")
        self.pushButton_0 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_0.setGeometry(QtCore.QRect(165, 158, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_0.setFont(font)
        self.pushButton_0.setObjectName("pushButton_0")
        self.pushButton_7 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_7.setGeometry(QtCore.QRect(9, 158, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_7.setFont(font)
        self.pushButton_7.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_7.setObjectName("pushButton_7")
        self.pushButton_2 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_2.setGeometry(QtCore.QRect(61, 256, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_2.setFont(font)
        self.pushButton_2.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_dengyu = QtWidgets.QPushButton(MainWindow)
        self.pushButton_dengyu.setGeometry(QtCore.QRect(217, 158, 45, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_dengyu.setFont(font)
        self.pushButton_dengyu.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_dengyu.setObjectName("pushButton_dengyu")
        self.pushButton_chu = QtWidgets.QPushButton(MainWindow)
        self.pushButton_chu.setGeometry(QtCore.QRect(217, 256, 45, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_chu.setFont(font)
        self.pushButton_chu.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_chu.setObjectName("pushButton_chu")
        self.pushButton_1 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_1.setGeometry(QtCore.QRect(9, 256, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_1.setFont(font)
        self.pushButton_1.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_1.setObjectName("pushButton_1")
        self.pushButton_3 = QtWidgets.QPushButton(MainWindow)
        self.pushButton_3.setGeometry(QtCore.QRect(113, 256, 46, 43))
        font = QtGui.QFont()
        font.setPointSize(26)
        self.pushButton_3.setFont(font)
        self.pushButton_3.setIconSize(QtCore.QSize(19, 19))
        self.pushButton_3.setObjectName("pushButton_3")

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

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "Calculator"))
        self.pushButton_5.setText(_translate("MainWindow", "5"))
        self.pushButton_cheng.setText(_translate("MainWindow", "*"))
        self.pushButton_9.setText(_translate("MainWindow", "9"))
        self.pushButton_8.setText(_translate("MainWindow", "8"))
        self.pushButton_4.setText(_translate("MainWindow", "4"))
        self.pushButton_jian.setText(_translate("MainWindow", "-"))
        self.pushButton_6.setText(_translate("MainWindow", "6"))
        self.pushButton_jia.setText(_translate("MainWindow", "+"))
        self.pushButton_ce.setText(_translate("MainWindow", "CE"))
        self.pushButton_0.setText(_translate("MainWindow", "0"))
        self.pushButton_7.setText(_translate("MainWindow", "7"))
        self.pushButton_2.setText(_translate("MainWindow", "2"))
        self.pushButton_dengyu.setText(_translate("MainWindow", "="))
        self.pushButton_chu.setText(_translate("MainWindow", "/"))
        self.pushButton_1.setText(_translate("MainWindow", "1"))
        self.pushButton_3.setText(_translate("MainWindow", "3"))

create.py 内容

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import os,sys

print('请确保您的.ui文件名与file name相同')
name = input("Input folder name here:")#文件夹名
name2 = input("Input file name here:")#文件名

name3 = input("*.py or *.pyw? Input 'py' or 'pyw' here:")
while name3!='py' and name3!='pyw':#是否需要命令行
    name3 = input("*.py or *.pyw? Input 'py' or 'pyw' here:")

path_now = os.path.dirname(os.path.realpath(__file__))
path_new = path_now+"\\"+name

try:
    os.makedirs(path_new)
except FileExistsError:
    pass


txt = '''import sys
from PyQt5.QtWidgets import QApplication, QMainWindow

import {}

if __name__ == '__main__':
    app = QApplication(sys.argv)
    MainWindow = QMainWindow()
    ui = {}.Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())
    '''.format(name2,name2)

with open(path_new+'\\'+'main.py','w') as f:
    f.write(txt)

with open(path_new+'\\'+'click_me.bat','w') as f:
    f.write('pyuic5 -o {}.py {}.ui'.format(name2,name2))

麦田孤望者

然后那个create.py就是双击之后回答三个问题 之后自动创建文件夹和两个文件 用Qt designer的话把.ui文件保存到这个文件夹里（.ui文件名要和你回答的第二个问题一样）
然后双击click_me.bat，等编译完成再双击main.py就可以运行了

ciker_li

python就是GUI麻烦

xQQ

不错，学习了。 Pyqt

mingrenlele

看界面怎么像Python，学习了。

wikiyc

学习了，谢谢分享。

在线苦等

thank you for your resources ！

打野不清兵

棒棒棒~~~

zsw555

下来，学习