本文实例为大家分享了PyQt5实现简易计算器的具体代码,供大家参考,具体内容如下
效果图:
界面代码
calc_interface.py
# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'calc_interface.ui' # # Created by: PyQt5 UI code generator 5.8.2 # # 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(647, 675) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.b_1 = QtWidgets.QPushButton(self.centralwidget) self.b_1.setGeometry(QtCore.QRect(10, 330, 71, 71)) self.b_1.setObjectName("b_1") self.b_2 = QtWidgets.QPushButton(self.centralwidget) self.b_2.setGeometry(QtCore.QRect(80, 330, 71, 71)) self.b_2.setObjectName("b_2") self.b_3 = QtWidgets.QPushButton(self.centralwidget) self.b_3.setGeometry(QtCore.QRect(150, 330, 71, 71)) self.b_3.setObjectName("b_3") self.b_6 = QtWidgets.QPushButton(self.centralwidget) self.b_6.setGeometry(QtCore.QRect(150, 400, 71, 71)) self.b_6.setObjectName("b_6") self.b_4 = QtWidgets.QPushButton(self.centralwidget) self.b_4.setGeometry(QtCore.QRect(10, 400, 71, 71)) self.b_4.setObjectName("b_4") self.b_5 = QtWidgets.QPushButton(self.centralwidget) self.b_5.setGeometry(QtCore.QRect(80, 400, 71, 71)) self.b_5.setObjectName("b_5") self.b_8 = QtWidgets.QPushButton(self.centralwidget) self.b_8.setGeometry(QtCore.QRect(80, 470, 71, 71)) self.b_8.setObjectName("b_8") self.b_9 = QtWidgets.QPushButton(self.centralwidget) self.b_9.setGeometry(QtCore.QRect(150, 470, 71, 71)) self.b_9.setObjectName("b_9") self.b_7 = QtWidgets.QPushButton(self.centralwidget) self.b_7.setGeometry(QtCore.QRect(10, 470, 71, 71)) self.b_7.setObjectName("b_7") self.b_eq = QtWidgets.QPushButton(self.centralwidget) self.b_eq.setGeometry(QtCore.QRect(150, 540, 211, 71)) self.b_eq.setObjectName("b_eq") self.b_mod = QtWidgets.QPushButton(self.centralwidget) self.b_mod.setGeometry(QtCore.QRect(220, 400, 71, 71)) self.b_mod.setObjectName("b_mod") self.b_bra_l = QtWidgets.QPushButton(self.centralwidget) self.b_bra_l.setGeometry(QtCore.QRect(220, 330, 71, 71)) self.b_bra_l.setObjectName("b_bra_l") self.b_div = QtWidgets.QPushButton(self.centralwidget) self.b_div.setGeometry(QtCore.QRect(220, 260, 71, 71)) self.b_div.setObjectName("b_div") self.b_add = QtWidgets.QPushButton(self.centralwidget) self.b_add.setGeometry(QtCore.QRect(10, 260, 71, 71)) self.b_add.setObjectName("b_add") self.b_sub = QtWidgets.QPushButton(self.centralwidget) self.b_sub.setGeometry(QtCore.QRect(80, 260, 71, 71)) self.b_sub.setObjectName("b_sub") self.b_mul = QtWidgets.QPushButton(self.centralwidget) self.b_mul.setGeometry(QtCore.QRect(150, 260, 71, 71)) self.b_mul.setObjectName("b_mul") self.b_pow = QtWidgets.QPushButton(self.centralwidget) self.b_pow.setGeometry(QtCore.QRect(290, 260, 71, 71)) self.b_pow.setObjectName("b_pow") self.b_pai = QtWidgets.QPushButton(self.centralwidget) self.b_pai.setGeometry(QtCore.QRect(290, 400, 71, 71)) self.b_pai.setObjectName("b_pai") self.b_bra_r = QtWidgets.QPushButton(self.centralwidget) self.b_bra_r.setGeometry(QtCore.QRect(290, 330, 71, 71)) self.b_bra_r.setObjectName("b_bra_r") self.l_hist = QtWidgets.QListWidget(self.centralwidget) self.l_hist.setGeometry(QtCore.QRect(380, 10, 256, 601)) self.l_hist.setObjectName("l_hist") self.e_view = QtWidgets.QTextEdit(self.centralwidget) self.e_view.setGeometry(QtCore.QRect(10, 10, 351, 231)) font = QtGui.QFont() font.setFamily("Adobe Caslon Pro Bold") font.setPointSize(22) font.setBold(True) font.setWeight(75) self.e_view.setFont(font) self.e_view.setObjectName("e_view") self.b_0 = QtWidgets.QPushButton(self.centralwidget) self.b_0.setGeometry(QtCore.QRect(80, 540, 71, 71)) self.b_0.setObjectName("b_0") self.b_pt = QtWidgets.QPushButton(self.centralwidget) self.b_pt.setGeometry(QtCore.QRect(10, 540, 71, 71)) self.b_pt.setObjectName("b_pt") self.b_del = QtWidgets.QPushButton(self.centralwidget) self.b_del.setGeometry(QtCore.QRect(220, 470, 71, 71)) self.b_del.setObjectName("b_del") self.b_clc = QtWidgets.QPushButton(self.centralwidget) self.b_clc.setGeometry(QtCore.QRect(290, 470, 71, 71)) self.b_clc.setObjectName("b_clc") MainWindow.setCentralWidget(self.centralwidget) self.menubar = QtWidgets.QMenuBar(MainWindow) self.menubar.setGeometry(QtCore.QRect(0, 0, 647, 30)) self.menubar.setObjectName("menubar") MainWindow.setMenuBar(self.menubar) 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", "MainWindow")) self.b_1.setText(_translate("MainWindow", "1")) self.b_2.setText(_translate("MainWindow", "2")) self.b_3.setText(_translate("MainWindow", "3")) self.b_6.setText(_translate("MainWindow", "6")) self.b_4.setText(_translate("MainWindow", "4")) self.b_5.setText(_translate("MainWindow", "5")) self.b_8.setText(_translate("MainWindow", "8")) self.b_9.setText(_translate("MainWindow", "9")) self.b_7.setText(_translate("MainWindow", "7")) self.b_eq.setText(_translate("MainWindow", "=")) self.b_mod.setText(_translate("MainWindow", "%")) self.b_bra_l.setText(_translate("MainWindow", "(")) self.b_div.setText(_translate("MainWindow", "/")) self.b_add.setText(_translate("MainWindow", "+")) self.b_sub.setText(_translate("MainWindow", "-")) self.b_mul.setText(_translate("MainWindow", "*")) self.b_pow.setText(_translate("MainWindow", "^")) self.b_pai.setText(_translate("MainWindow", "π")) self.b_bra_r.setText(_translate("MainWindow", ")")) self.b_0.setText(_translate("MainWindow", "0")) self.b_pt.setText(_translate("MainWindow", ".")) self.b_del.setText(_translate("MainWindow", "删除")) self.b_clc.setText(_translate("MainWindow", "清空"))
主逻辑代码
calc_main.py
from PyQt5.QtCore import * from PyQt5.QtGui import * from PyQt5.QtWidgets import * from calc_interface import Ui_MainWindow import os,sys global e_view pluginsPath='PyQt5/Qt/plugins' if os.path.exists(pluginsPath):#指定插件路径。源码运行时不会生效,打包后运行检测到路径,加载插件 QApplication.addLibraryPath(pluginsPath) class MyMainWindow(QMainWindow, Ui_MainWindow): def forge_link(self): self.b_0.clicked.connect(self.button_event(0)) self.b_1.clicked.connect(self.button_event(1)) self.b_2.clicked.connect(self.button_event(2)) self.b_3.clicked.connect(self.button_event(3)) self.b_4.clicked.connect(self.button_event(4)) self.b_5.clicked.connect(self.button_event(5)) self.b_6.clicked.connect(self.button_event(6)) self.b_7.clicked.connect(self.button_event(7)) self.b_8.clicked.connect(self.button_event(8)) self.b_9.clicked.connect(self.button_event(9)) self.b_add.clicked.connect(self.button_event('+')) self.b_sub.clicked.connect(self.button_event('-')) self.b_mul.clicked.connect(self.button_event('*')) self.b_div.clicked.connect(self.button_event('/')) self.b_pow.clicked.connect(self.button_event('**')) self.b_bra_l.clicked.connect(self.button_event('(')) self.b_bra_r.clicked.connect(self.button_event(')')) self.b_mod.clicked.connect(self.button_event('%')) self.b_pai.clicked.connect(self.button_event('3.1415926')) self.b_pt.clicked.connect(self.button_event('.')) self.b_del.clicked.connect(self.delete_event) self.b_clc.clicked.connect(self.clear_event) self.b_eq.clicked.connect(self.calc_complish) def __init__(self, parent=None): super(MyMainWindow, self).__init__(parent) self.setupUi(self) self.forge_link() #连接槽函数 def button_event(self,arg): # print(dir(self.e_view)) global e_view e_view=self.e_view def fun(): #返回一个自定义的槽函数 global e_view txt = e_view.toPlainText() e_view.setText(txt + str(arg)) return fun def calc_complish(self): txt=self.e_view.toPlainText() ans='' try: ans=str(eval(txt)) except BaseException: ans='MathError' # print(ans) self.clear_event() self.e_view.setText(ans) self.l_hist.addItem(txt+'='+ans) def clear_event(self): self.e_view.setText('') def delete_event(self): txt = self.e_view.toPlainText() txt=txt[:len(txt)-1] self.e_view.setText(txt) if __name__ == '__main__': app=QApplication(sys.argv) myWin=MyMainWindow() myWin.show() sys.exit(app.exec())
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!
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而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?
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