465397639187253简易计算器.rar

import sys import os from PyQt5.QtGui import QIcon from QCandyUi import CandyWindow from PyQt5.QtCore import QObject from PyQt5.QtWidgets import (QWidget,QApplication) from app import Ui_Form import math #主界面窗口 class Calculator(QWidget,Ui_Form,QObject): # warning_signal = pyqtSignal(str,str) def __init__(self) -> object: #-> object #_xxx__：系统定义的特殊成员 super(Calculator, self).__init__() #分别调用了父类的初始化函数 self.setupUi(self) #UI界面控件的初始化 self.show() self.last_result = 0 #该数据成员属于对象，用于存放上次的计算结果 self.setWindowTitle("计算器") #标题的设置 # 图标文件的文件夹 # current work directory print(os.getcwd()) path = os.path.join(os.path.join(os.getcwd(), "icon")) # print(path) path = os.path.join(path, "icon.ico") # 在线转换 http://www.topdf.cn/img2icon print(path) icon = QIcon(path) self.setWindowIcon(icon) #关联按钮 self.pus_0.clicked.connect(self.buttonClick) self.pus_1.clicked.connect(self.buttonClick) self.pus_2.clicked.connect(self.buttonClick) self.pus_3.clicked.connect(self.buttonClick) self.pus_4.clicked.connect(self.buttonClick) self.pus_5.clicked.connect(self.buttonClick) self.pus_6.clicked.connect(self.buttonClick) self.pus_7.clicked.connect(self.buttonClick) self.pus_8.clicked.connect(self.buttonClick) self.pus_9.clicked.connect(self.buttonClick) self.pus_Clear.clicked.connect(self.buttonClick) self.pus_Bck.clicked.connect(self.buttonClick) self.pus_devide.clicked.connect(self.buttonClick) self.pus_sub.clicked.connect(self.buttonClick) self.pus_equare.clicked.connect(self.buttonClick) self.pus_point.clicked.connect(self.buttonClick) self.pus_add.clicked.connect(self.buttonClick) self.pus_multi.clicked.connect(self.buttonClick) self.pus_Close.clicked.connect(self.buttonClick) self.pus_percentage.clicked.connect(self.buttonClick) self.pus_pingfanggen.clicked.connect(self.buttonClick) self.pus_cifang.clicked.connect(self.buttonClick) self.last_result = 0 def buttonClick(self): #定义一个函数，判断对应按钮点击并作出预设的动作 pus = self.sender() try: if pus.objectName() == "pus_0": #判断点击的是不是按钮0，是的话就进入这个判断语句 text = self.lineEdit.text() #读取文本编辑框的内容 if text == "0" or text =="0.0": #这里是计算器初始化为0，如若处于初始化状态可直接替换 text= "0" else: #前面有数字则在文本加上一个数字 text += "0" self.lineEdit.setText(text) #将更改后的文本写入在文本编辑框，显示出来 if pus.objectName() == "pus_1": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "1" else: text += "1" self.lineEdit.setText(text) if pus.objectName() == "pus_2": text = self.lineEdit.text() if text == "0" or text == "0.0": text = "2" else: text += "2" self.lineEdit.setText(text) if pus.objectName() == "pus_3": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "3" else: text += "3" self.lineEdit.setText(text) if pus.objectName() == "pus_4": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "4" else: text += "4" self.lineEdit.setText(text) if pus.objectName() == "pus_5": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "5" else: text += "5" self.lineEdit.setText(text) if pus.objectName() == "pus_6": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "6" else: text += "6" self.lineEdit.setText(text) if pus.objectName() == "pus_7": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "7" else: text += "7" self.lineEdit.setText(text) if pus.objectName() == "pus_8": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "8" else: text += "8" self.lineEdit.setText(text) if pus.objectName() == "pus_9": text = self.lineEdit.text() if text == "0" or text =="0.0": text = "9" else: text += "9" self.lineEdit.setText(text) if pus.objectName() == "pus_add": text = self.lineEdit.text() if len(text) > 0 and text[-1].isnumeric(): if "+" in text or "-" in text or "*" in text or "/" in text: if "+" in text: numbers_after_split = text.split("+") self.last_result = float(numbers_after_split[0]) + float(numbers_after_split[1]) if "-" in text: numbers_after_split = text.split("-") self.last_result = float(numbers_after_split[0]) - float(numbers_after_split[1]) if "*" in text: numbers_after_split = text.split("*") self.last_result = float(numbers_after_split[0]) * float(numbers_after_split[1]) if "/" in text: numbers_after_split = text.split("/") self.last_result = float(numbers_after_split[0]) / float(numbers_after_split[1]) # 计算结束，把式子的结果显示到lineEdit self.lineEdit.setText(str(self.last_result)) # 重新读取一遍文本框的内容，追加“*” text = self.lineEdit.text() text += "+" self.lineEdit.setText(text) else: print("前一位非数字，不处理") if pus.objectName() == "pus_point": text = self.lineEdit.text() if len(text) > 0 and text[-1].isnumeric(): text += "." self.lineEdit.setText(text) else: print("前一位非数字，不处理") if pus.objectName() == "pus_Clear": self.lineEdit.clear() self.lineEdit.setText("0") if pus.objectName() == "pus_Bck": text = self.lineEdit.text() print(text) if len(text) > 0: new_text = text[0:-1] self.lineEdit.setText(new_text) if pus.objectName() == "pus_sub": text = self.lineEdit.text()