清华大佬耗费三个月吐血整理的几百G的资源，免费分享！....>>>
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | # -*- coding: utf-8 -*-#！/usr/bin/pythonfrom Tkinter import *def updateDisplay(buttonString): content = display.get() if content == "0": content = "" display.set(content + buttonString) def calculate(): result = eval(display.get()) display.set(display.get() + '=\n' + str(result)) def clear(): display.set('0') def backspace(): display.set(str(display.get()[:-1]))mainUI = Tk()mainUI.title('Caculator')mainUI.geometry('230x200+300+400')#设置显示内容,默认显示0display = StringVar()display.set('0')# 添加计算器显示区域，使用Label，并设置背景色及大小textLabel = Label(mainUI)# 这里需要注意width宽度的单位，如果你在Label中显示文本，# 那么这些选项将以文本的单位为定义按钮的尺寸。# 如果你替而代之显示图象，那么按钮的尺寸将是像素（或其它的屏幕单位）。textLabel.config(bg='grey',width=28,height=3,anchor=SE)textLabel['textvariable']=display# 设置显示区域在Grid布局中的位置textLabel.grid(row=0,column=0,columnspan=4)# 添加按钮并放置到适当的区域# 清空按钮，其中text为按钮上的文字，fg为按钮的字体颜色（bg为文字背景的按钮颜色），width为按钮宽度# command参数为按钮事件绑定函数，绑定到clear()函数，按钮按下时触发clearButton = Button(mainUI,text = 'C', fg = 'orange',width = 3,command = clear)# 设置清空按钮的位置，行号为1，列号为0，即第二行第一列clearButton.grid(row = 1,column =0)# 其他按钮位置，由于与清空按钮类似不再注释，请自行查看Grid中的位置，有的按钮采用lambda来生成匿名函数，原因是需要处理传入的参数Button(mainUI,text = 'DEL',width=3,command=backspace).grid(row=1,column=1)Button(mainUI,text = "/",width = 3,command = lambda:updateDisplay('/')).grid(row=1,column=2)Button(mainUI,text = '*',width = 3,command = lambda:updateDisplay('*')).grid(row=1,column=3)Button(mainUI,text = '7',width = 3,command = lambda:updateDisplay('7')).grid(row=2,column=0)Button(mainUI,text = '8',width = 3,command = lambda:updateDisplay('8')).grid(row=2,column=1)Button(mainUI,text = '9',width = 3,command = lambda:updateDisplay('9')).grid(row=2,column=2)Button(mainUI, text = '-', width = 3, command = lambda:updateDisplay('-')).grid(row = 2 ,column = 3)Button(mainUI, text = '4', width = 3, command = lambda:updateDisplay('4')).grid(row = 3, column = 0)Button(mainUI, text = '5', width = 3, command = lambda:updateDisplay('5')).grid(row = 3, column = 1)Button(mainUI, text = '6', width = 3, command = lambda:updateDisplay('6')).grid(row = 3, column = 2)Button(mainUI, text = '+', width = 3, command = lambda:updateDisplay('+')).grid(row = 3, column = 3)Button(mainUI, text = '1', width = 3, command = lambda:updateDisplay('1')).grid(row = 4, column = 0)Button(mainUI, text = '2', width = 3, command = lambda:updateDisplay('2')).grid(row = 4, column = 1)Button(mainUI, text = '3', width = 3, command = lambda:updateDisplay('3')).grid(row = 4, column = 2)Button(mainUI, text = '=', width = 3, bg = 'orange', height = 3, command = lambda:calculate()).grid(row = 4, column = 3, rowspan = 2)Button(mainUI, text = '0', width = 10, command = lambda:updateDisplay('0')).grid(row = 5, column = 0, columnspan = 2)Button(mainUI, text = '.', width = 3, command = lambda:updateDisplay('.')).grid(row = 5, column = 2)mainUI.mainloop() |