python简单计算器

计算器1.0

#coding=utf8from Tkinter import *from functools import partial as pttop = Tk()top.title('计算器1.0')res = StringVar()cc = StringVar()e = Entry(top,relief = SUNKEN,textvariable = cc).pack(side = TOP,expand = YES,fill = BOTH)r = Entry(top,relief = SUNKEN,textvariable = res).pack(side = TOP,expand = YES,fill = BOTH)def show_result(cc,char):    s = cc.get()    if s == '0':        s = ''    s += char    cc.set(s)def ans(c, r):    he = c.get()    try:        a = eval(he)    except Exception:        a = 'error'    r.set(a)def clear(c,r):    c.set('')    r.set('')f1 = Frame(top)bu1 = Button(f1, text = '1',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '1':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu2 = Button(f1, text = '2',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '2':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu3 = Button(f1, text = '3',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '3':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu4 = Button(f1, text = '4',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '4':show_result(c, o),width =7, height = 2).pack(side = LEFT)buh = Button(f1, text = 'help',fg = 'white', bg = 'blue',command = None,width =7, height = 2).pack(side = LEFT)f1.pack(side = TOP,expand = YES,fill = BOTH)f2 = Frame(top)bu5 = Button(f2, text = '5',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '5':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu6 = Button(f2, text = '6',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '6':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu7 = Button(f2, text = '7',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '7':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu8 = Button(f2, text = '8',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '8':show_result(c, o),width =7, height = 2).pack(side = LEFT)f2.pack(side = TOP,expand = YES,fill = BOTH)f3 = Frame(top)bu9 = Button(f3, text = '9',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '9':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu0 = Button(f2, text = '0',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '0':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu11 = Button(f3, text = '+',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '+':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu12 = Button(f3, text = '-',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '-':show_result(c, o),width =7, height = 2).pack(side = LEFT)bu13 = Button(f3, text = '*',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '*':show_result(c, o),width =7, height = 2).pack(side = LEFT)buh = Button(f3, text = '.',fg = 'white', bg = 'blue',command =lambda c = cc ,o = '.':show_result(c, o),width =7, height = 2).pack(side = LEFT)f3.pack(side = TOP,expand = YES,fill = BOTH)f4 = Frame(top)bu15 = Button(f4, text = 'clear',fg = 'white', bg = 'blue',command = lambda c = cc, r = res :clear(c,r),width =7, height = 2).pack(side = LEFT)bu16 = Button(f4, text = 'del',fg = 'white', bg = 'blue',command = lambda c = cc :c.set(c.get()[0:-1]),width =7, height = 2).pack(side = LEFT)bu17 = Button(f4, text = 'quit',fg = 'white', bg = 'blue',command = top.quit,width =7, height = 2).pack(side = LEFT)bu10 = Button(f4, text = '=',fg = 'white', bg = 'blue',command = lambda c = cc, r =res :ans(c, r),width =7, height = 2).pack(side = LEFT)bu14 = Button(f4, text = '/',fg = 'white', bg = 'blue',command = lambda c = cc ,o = '/':show_result(c, o),width =7, height = 2).pack(side = LEFT)f4.pack(side = TOP,expand = YES,fill = BOTH)top.mainloop()

计算器2.0

#coding=utf8from Tkinter import *from functools import partialtop = Tk()class cal(Frame):    def __init__(self):        Frame.__init__(self)        self.cc = '0'        self.res = '0'        self.master.title = '计算机2.0'        self.master.geometry = '400x400'        self.pack(expand = YES , fill = BOTH)        self.dr()    def add_button(self,p, side, text, command = None):        b = Button(p, text = text, command = command, width =6, height =2)        b.pack(side = side)        return b    def add_fr(self, p, side):        f = Frame(p)        f.pack(side = side,expand = YES,fill = BOTH)        return f    def show_re(self, a, b):        c = a.get()        s  = c + b        a.set(s)    def result(self, a, b):        c= a.get()        try:            d = str(eval(c))        except Exception:            d = 'ERROR'        b.set(d)        return b    def clear(self,a,b):        a.set('')        b.set('')    def delt(self, a):        b = a.get()[0:-1]        a.set(b)    def dr(self):        cc = StringVar()        res = StringVar()        e1 = Entry(self, textvariable = cc )        e1.pack(side = TOP,expand = YES, fill = BOTH)        e2 = Entry(self, textvariable = res)        e2.pack(side = TOP, expand = YES, fill = BOTH)        b1 = Button(self, text = 'quit', command = top.quit, height = 2)        b1.pack(side = BOTTOM,expand = YES, fill = BOTH)        xixi = ('1234', '5678', '90-+', '*/.')        for i in xixi:            b = self.add_fr(self,TOP)            for k in i:                x = self.add_button(b, LEFT,text=k, command=lambda a = cc, b = k:self.show_re(a,b))        b2 = self.add_button(b, TOP, text = '=', command = lambda a=cc, b=res:self.result(a,b) )        b2.pack()        f1 = self.add_fr(self,TOP)        b3 = self.add_button(f1, LEFT, text='(',command=lambda a = cc, b = '(':self.show_re(a,b))        b4 = self.add_button(f1, LEFT, text=')',command=lambda a = cc, b = ')':self.show_re(a,b))        b5 = self.add_button(f1, LEFT, text='clear',command=lambda a = cc, b = res:self.clear(a,b))        b6 = self.add_button(f1, LEFT, text='del',command=lambda a = cc:self.delt(a))def main():    cal().mainloop()if __name__ == '__main__':    main()

写的好丑，。。。。不忍直视