python 06 计算器

import tkinter
import math
class Deom:
    operation_sign = False
    sign1 = False
    sign2 = False

    list1 = []

    list2 = []

    def __init__(self):
        self.root = tkinter.Tk()
        self.root.minsize(320, 400)
        self.root.title(‘什么都算不对牌计算器‘)
        self.layout()
        self.root.mainloop()

    def layout(self):
        self.val0 = tkinter.StringVar()
        self.val0.set(‘0‘)
        self.val = tkinter.StringVar()
        self.val.set(‘0‘)  # 文本设置

        #标题

        def newwindow():
                # 相当于主界面

            tp = tkinter.Toplevel(width=300, height=330, bg=‘white‘)
            # 禁止调整大小
            #tp.resizable(width=False, height=False)
            # 定义标题
            tp.title(‘help‘)
            self.val3 = tkinter.StringVar()
            self.val3.set(‘实现功能：\n简易计算器，加减乘除，开方，平方，百分数，分数,正负\n数，clear error ,clear,delete\n解决bug：\n1. 一直点击运算符号以及等号会连加\n2. 除数为零提示除数不能为0\n3. 小数结果如果大于15位，则保留15位，整数则提示超\n出范围\n4. 小数点控制为一个，先按小数点会先出零\n5. 已修复目前已知bug\n\n\ntips:\n若发现bug请及时联系作者修改！！\n本界面趋于原生\n\n版权所有@赵晗python04‘)
            # 消息记录
            label3 = tkinter.Label(tp,  bg = ‘white‘,textvariable = self.val3,anchor = ‘nw‘,justify = ‘left‘)
            label3.place(x = 0, y = 0)

        # 创建总菜单
        menubar = tkinter.Menu(self.root,bg = ‘#F2F2F2‘,activeforeground = ‘white‘,activebackground = ‘#1717FF‘)
        # 创建一个下拉菜单，并且加入文件菜单
        filemenu = tkinter.Menu(menubar,bg = ‘#F2F2F2‘,activeforeground = ‘white‘,activebackground = ‘#1717FF‘)
        # 创建下来菜单的选项
        filemenu.add_command(label="about",command=newwindow)
        # 创建下拉菜单的分割线
        filemenu.add_separator()
        filemenu.add_command(label="Exit", command=self.root.quit)
        # 将文件菜单作为下拉菜单添加到总菜单中，并且将命名为File
        menubar.add_cascade(label="help", menu=filemenu)
        # 显示总菜单
        self.root.config(menu=menubar)
        # 标签
        label0 = tkinter.Label(self.root,textvariable=self.val0, bg=‘white‘, fg = ‘#7B7B7B‘,font=(‘黑体‘, 15), width=‘15‘, anchor=‘e‘,borderwidth=‘10‘).place(x=‘0‘, y=‘0‘,width= 320,height = 40)
        # 按键)
        label1 = tkinter.Label(self.root, textvariable=self.val, bg=‘white‘, font=(‘黑体‘, 25), width=‘15‘, anchor=‘e‘,borderwidth=‘10‘).place(x=‘0‘, y=‘40‘,width = 320,height = 60)
        # 按键
        btn9 = tkinter.Button(self.root, text=‘9‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘9‘)).place(x=160, y=200, width=80, height=50)
        btn8 = tkinter.Button(self.root, text=‘8‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.num(‘8‘)).place(x=80, y=200, width=80, height=50)
        btn7 = tkinter.Button(self.root, text=‘7‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.num(‘7‘)).place(x=0, y=200, width=80, height=50)
        btn6 = tkinter.Button(self.root, text=‘6‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.num(‘6‘)).place(x=160, y=250, width=80, height=50)
        btn5 = tkinter.Button(self.root, text=‘5‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.num(‘5‘)).place(x=80, y=250, width=80, height=50)
        btn4 = tkinter.Button(self.root, text=‘4‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘4‘)).place(x=0, y=250, width=80, height=50)
        btn3 = tkinter.Button(self.root, text=‘3‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘3‘)).place(x=160, y=300, width=80, height=50)
        btn2 = tkinter.Button(self.root, text=‘2‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘2‘)).place(x=80, y=300, width=80, height=50)
        btn1 = tkinter.Button(self.root, text=‘1‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘1‘)).place(x=0, y=300, width=80, height=50)
        btn0 = tkinter.Button(self.root, text=‘0‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.num(‘0‘)).place(x=80, y=350, width=80, height=50)
        btnsign = tkinter.Button(self.root, text=‘±‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.plus_minus).place(x=0, y=350, width=80, height=50)
        btnpoint = tkinter.Button(self.root, text=‘.‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.num(‘.‘)).place(x=160, y=350, width=80, height=50)
        btndiv = tkinter.Button(self.root, text=‘÷‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.operation(‘/‘)).place(x=240, y=150, width=80, height=50)
        btnmul = tkinter.Button(self.root, text=‘ב, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.operation(‘*‘)).place(x=240, y=200, width=80, height=50)
        btnadd = tkinter.Button(self.root, text=‘+‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘, command=lambda :self.operation(‘+‘)).place(x=240, y=300, width=80, height=50)
        btnsub = tkinter.Button(self.root, text=‘-‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command=lambda :self.operation(‘-‘)).place(x=240, y=250, width=80, height=50)
        btnequal = tkinter.Button(self.root, text=‘=‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activeforeground = ‘white‘,activebackground = ‘#1717FF‘, command=self.eq_operation).place(x=240, y=350, width=80, height=50)
        btndel = tkinter.Button(self.root, text=‘del‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.delete_operation).place(x=160, y=150, width=80, height=50)
        btnclr = tkinter.Button(self.root, text=‘c‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activeforeground = ‘white‘,activebackground = ‘#FE524E‘,command = self.clear_all).place(x=80, y=150, width=80, height=50)
        btnce = tkinter.Button(self.root, text=‘ce‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.clear_error).place(x=0, y=150, width=80, height=50)
        btnpercent = tkinter.Button(self.root, text=‘%‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.percent_operation).place(x=0, y=100, width=80, height=50)
        btnevolution = tkinter.Button(self.root, text=‘√‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command =self.evolution_operation).place(x=80, y=100, width=80, height=50)
        btnsquare = tkinter.Button(self.root, text=‘x2‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.square_operation).place(x=160, y=100, width=80, height=50)
        btngrade = tkinter.Button(self.root, text=‘1/x‘, bg = ‘#F2F2F2‘,font=(‘黑体‘, 15),activebackground = ‘#CFEFFE‘,command = self.grade_operation).place(x=240, y=100, width=80, height=50)


    #键盘输入操作
    def num(self,number):
        a = number
        print(number)
        ‘‘‘if self.sign2 == True:
            if number == ‘0‘:
                print(‘error‘)‘‘‘

        if self.operation_sign == True:
            self.val.set(‘0‘)
            self.operation_sign = False

        if self.val.get() == ‘0‘:  # 如果屏幕中数字为0，即一开始的默认值，判断，是0则变为按下的数字不是0，进行拼接
            self.val.set(number)
            if number == ‘.‘:
                self.val.set(‘0‘ + number)
        else:  #不是0的情况
            if self.val.get().count(‘.‘) == 0:  #如果获取的字符串里面只有一个.
                self.val.set(self.val.get() + number)  # 屏幕所得到的数字  字符串连接下一次按入的数字
            elif number != ‘.‘:
                self.val.set(self.val.get() + number)
                ‘‘‘if self.sign2 == True:
                    if self.val.get() == ‘0‘:
                        print(‘error‘)‘‘‘
        #self.sign2 = False
        self.sign1 = True
        self.sign2 = True

    # 正负操作
    def plus_minus(self):
        list2 = self.val.get()
        if list2[0] == ‘-‘:
            self.val.set(list2[1:])
        elif list2[0] != ‘-‘ and list2 != ‘0‘:
            self.val.set(‘-‘ + list2)
        self.sign1 = True

    #退格操作
    def delete_operation(self):
        if len(self.val.get()) >1:
            self.list1 = list(self.val.get())
            self.list1.pop()
            result = ‘‘.join(self.list1)
            self.val.set(result)
        else:
            self.val.set(‘0‘)

    #平方操作
    def square_operation(self):
        self.val.get()
        self.list1.append(self.val.get())
        list2 = ‘** 2‘
        self.list1.append(list2)
        str1 = ‘‘.join(self.list1)  # 转换为字符串！
        print(str1)
        self.val0.set(str1)  # 副框显示字符串也可以是列表
        result = eval(str1)  # 进行运算，python 代码
        if result > 1:
            result1 = str(result)
            if len(result1) > 17:
                self.val.set(‘结果超过范围‘)
            else:
                self.val.set(result)
        else:
            result1 = round(result, 15)
            self.val.set(result1)
        print(self.list1)
        self.list1.clear()
        self.operation_sign = True

    #开平方操作
    def evolution_operation(self):
        try:
            self.val.get()
            list2 = ‘math.sqrt({0})‘.format(self.val.get())
            print(list2)
            self.list1.append(list2)
            str1= ‘‘.join(self.list1)
            print(str1)
            self.val.set(eval(str1))
            result = eval(str1)  # 进行运算，python 代码
            result1 = round(result, 15)
            self.val.set(result1)
            self.list1.clear()
            self.operation_sign = True
        except ValueError:
            self.val.set(‘不能对负数开根号‘)

    #%操作
    def percent_operation(self):
        self.val.get()
        self.list1.append(self.val.get())
        list2 = ‘/ 100‘
        self.list1.append(list2)
        result = ‘‘.join(self.list1)
        self.val.set(eval(result))
        print(self.list1)
        self.list1.clear()
        self.operation_sign = True
    #分数
    def grade_operation(self):
        try:
            self.val.get()
            print(self.list1)
            list2 = ‘1/{}‘.format(self.val.get())
            self.list1.append(list2)
            str1= ‘‘.join(self.list1)
            print(str1)
            self.val.set(eval(str1))
            result = eval(str1)  # 进行运算，python 代码
            result1 = round(result, 15)
            self.val.set(result1)
            print(self.list1)
            self.list1.clear()
            self.operation_sign = True
        except ZeroDivisionError:
            self.val.set(‘除数不能为零‘)

    #清空全部数据操作
    def clear_all(self):
        self.val.set(‘0‘)
        self.list1 = []
        self.val0.set(‘0‘)
        self.operation_sign = False

    #清空错误操作
    def clear_error(self):
        if self.val.get() != ‘‘:
            self.val.set(‘0‘)

    #运算操作
    def operation(self,addnum):
        if self.sign1 == True:  #满足这个条件即可按下运算键，否则不可以，即0-9与等号
            print(addnum)  # addnum代表符号
            print(self.val.get())  # 获取文本  字符串格式
            self.list1.append(self.val.get())  # 将文本追加到list1中，此时val.get为文本中内容    列表
            self.list1.append(addnum)  # 【2 + 】
            print(self.list1)  # 需要判断运算符号是否按下
            self.val0.set(self.list1)

        self.operation_sign = True
        self.sign1 = False

    #等号操作
    def eq_operation(self):
        try:
            if self.sign2 == True:
                if self.sign1 == True:   #sign1 为true 可以等于
                    self.list1.append(self.val.get())  # 按下等号之后将之前的一个数值传入list1
                    print(self.list1)
                    str1 = ‘‘.join(self.list1)  # 转换为字符串！
                    print(str1)
                    self.val0.set(str1)  # 副框显示字符串也可以是列表
                    result = eval(str1)  # 进行运算，python 代码
                    if result > 1:
                        result1 = str(result)
                        if len(result1) > 15:
                            self.val.set(‘结果超过范围‘)
                        else:
                            self.val.set(result)
                    else:
                        result1 = round(result,15)
                        self.val.set(result1)
                    self.list1.clear()
            self.operation_sign = True #此时判断出按键是否按下
            self.sign1 = True    #按下等号  变为true  数字可以按下
            self.sign2 = False

        except ZeroDivisionError:
            self.val.set(‘除数不能为零‘)



deom = Deom()