tkinter：tkinter模块（Tk接口）是Python的标准Tk GUI工具包的接口。Tk和tkinter可以在大多数的UNIX平台下使用，同样可以应用在Windows和Macintosh系统中。
简单计算器，部份功能还未实现
import decimal, math from tkinter import Tk, StringVar, Button, Label, Menu, messageboxtop = Tk() top.title('计算器') top.resizable(0, 0) global cun_cu, var_text, result, fu_hao result, fu_hao = None, None var_text = StringVar() cun_cu = []
class AnJianZhi(object): global cun_cu, var_text, result, fu_hao
def init(self, an_jian): self.an_jian = an_jian
def jia(self): cun_cu.append(self.an_jian) var_text.set(''.join(cun_cu))
def tui(self): if cun_cu is not None and cun_cu.len() > 0: cun_cu.pop() var_text.set(''.join(cun_cu))
def clear(self): cun_cu.clear() var_text.set('') result = fu_hao = None
def zheng_fu(self): if cun_cu is not None and cun_cu.len() == 0: var_text.set(''.join(cun_cu)) return
if cun_cu[0]: if cun_cu[0] == '-': cun_cu[0] = '+' elif cun_cu[0] == '+': cun_cu[0] = '-' else: cun_cu.insert(0, '-') var_text.set(''.join(cun_cu))
def xiao_shu_dian(self): if cun_cu.count('.') >= 1: pass else: if cun_cu.len() == 0: cun_cu.append('0') cun_cu.append('.') var_text.set(''.join(cun_cu))
def yun_suan(self): global cun_cu, var_text, result, fu_hao if var_text.get() == '': pass else: get1 = decimal.Decimal(var_text.get()) if self.an_jian in ('1/x', 'sqrt'): if self.an_jian == '1/x': try: result = 1 / get1 except ZeroDivisionError as e: result = 0 messagebox.showinfo('异常,被除数等于{}'.format(get1)) elif self.an_jian == 'sqrt': result = math.sqrt(get1) elif self.an_jian in ('+', '-', '*', '/', '%', '='): if fu_hao is not None: get1 = decimal.Decimal(result) get2 = decimal.Decimal(var_text.get())
if fu_hao == '+': result = get1 + get2 elif fu_hao == '-': result = get1 - get2 elif fu_hao == '': result = get1 get2 elif fu_hao == '/': try: result = get1 / get2 except ZeroDivisionError as e: result = 0 messagebox.showinfo('异常,被除数等于{}'.format(get2)) except Exception as e: result = 0 messagebox.showinfo('异常,异常信息{}'.format(e)) elif fu_hao == '%': result = get1 % get2 else: result = get1 if self.an_jian == '=': fu_hao = None else: fu_hao = self.an_jian
print(fu_hao) print(result) var_text.set(str(result)) cun_cu.clear()
def bu_ju(top_var): global cun_cu, var_text, result, fu_hao entry1 = Label(top_var, width=30, height=2, bg='white', anchor='se', textvariable=var_text) entry1.grid(row=0, columnspan=5) button_mc = Button(top_var, text='MC', width=5) button_mr = Button(top_var, text='MR', width=5) button_ms = Button(top_var, text='MS', width=5) button_m1 = Button(top_var, text='M1', width=5) button_m2 = Button(top_var, text='M2', width=5) button_mc.grid(row=1, column=0) button_mr.grid(row=1, column=1) button_ms.grid(row=1, column=2) button_m1.grid(row=1, column=3) button_m2.grid(row=1, column=4)
button_j = Button(top_var, text='←', width=5, command=AnJianZhi('c').tui) button_ce = Button(top_var, text='CE', width=5) button_c = Button(top_var, text='C', width=5, command=AnJianZhi('c').clear) button_12 = Button(top_var, text='±', width=5, command=AnJianZhi('c').zheng_fu) button_d = Button(top_var, text='√', width=5, command=AnJianZhi('sqrt').yun_suan) button_j.grid(row=2, column=0) button_ce.grid(row=2, column=1) button_c.grid(row=2, column=2) button_12.grid(row=2, column=3) button_d.grid(row=2, column=4)
button_7 = Button(top_var, text='7', width=5, command=AnJianZhi('7').jia) button_8 = Button(top_var, text='8', width=5, command=AnJianZhi('8').jia) button_9 = Button(top_var, text='9', width=5, command=AnJianZhi('9').jia) button_c = Button(top_var, text='/', width=5, command=AnJianZhi('/').yun_suan) button_f = Button(top_var, text='%', width=5, command=AnJianZhi('%').yun_suan) button_7.grid(row=3, column=0) button_8.grid(row=3, column=1) button_9.grid(row=3, column=2) button_c.grid(row=3, column=3) button_f.grid(row=3, column=4)
button_4 = Button(top_var, text='4', width=5, command=AnJianZhi('4').jia) button_5 = Button(top_var, text='5', width=5, command=AnJianZhi('5').jia) button_6 = Button(top_var, text='6', width=5, command=AnJianZhi('6').jia) button_x = Button(top_var, text='', width=5, command=AnJianZhi('').yun_suan) button_fs = Button(top_var, text='1/x', width=5, command=AnJianZhi('1/x').yun_suan) button_4.grid(row=4, column=0) button_5.grid(row=4, column=1) button_6.grid(row=4, column=2) button_x.grid(row=4, column=3) button_fs.grid(row=4, column=4)
button_1 = Button(top_var, text='1', width=5, command=AnJianZhi('1').jia) button_2 = Button(top_var, text='2', width=5, command=AnJianZhi('2').jia) button_3 = Button(top_var, text='3', width=5, command=AnJianZhi('3').jia) button_ = Button(top_var, text='-', width=5, command=AnJianZhi('-').yun_suan) button_dy = Button(top_var, text='
=
', width=5, command=AnJianZhi('=').yun_suan) button_1.grid(row=5, column=0) button_2.grid(row=5, column=1) button_3.grid(row=5, column=2) button_.grid(row=5, column=3) button_dy.grid(row=5, column=4, rowspan=2)button_0 = Button(top_var, text='0', width=14, command=AnJianZhi('0').jia) button_jh = Button(top_var, text=' . ', width=5, command=AnJianZhi('c').xiao_shu_dian) button_jia = Button(top_var, text=' + ', width=5, command=AnJianZhi('+').yun_suan) button_0.grid(row=6, column=0, columnspan=2) button_jh.grid(row=6, column=2) button_jia.grid(row=6, column=3)
def cai_dan(top_var): menu = Menu(top_var) sub_menu_1= Menu(menu,tearoff=0) menu.add_cascade(label='查看',menu=sub_menu_1) sub_menu_2 = Menu(menu, tearoff=0) sub_menu_2.add_command(label='复制') sub_menu_2.add_command(label='粘贴') menu.add_cascade(label='编辑', menu=sub_menu_2) sub_menu = Menu (menu,tearoff=0) sub_menu.add_command(label='查看帮助') sub_menu.add_separator() sub_menu.add_command(label='关于计算机') menu.add_cascade(label='帮助',menu=sub_menu) top_var.config(menu=menu)
if name=='main': bu_ju(top) cai_dan(top) top.mainloop()
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