1 #!/usr/bin/python3 2 #-*-coding:utf-8-*- 3 import tkinter 4 import tkinter.font 5 6 class Calculate(): 7 def __init__(self): 8 self.tk=tkinter.Tk(); 9 self.tk.title("Calculate"); 10 11 self.tk.resizable(0,0); 12 self.showfont=tkinter.font.Font(self.tk,size=26); 13 self.sysfont=tkinter.font.Font(self.tk,size=16); 14 15 self.entry=tkinter.Entry(self.tk,width=20,font=self.showfont,bac kground="#ffffff"); 16 self.entry.grid(row=0,column=0,columnspan=4,pady=10); 17 18 self.btn1=tkinter.Button(self.tk,text="1",font=self.sysfont); 19 self.btn1.grid(row=1,column=0,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 20 21 self.btn2=tkinter.Button(self.tk,text="2",font=self.sysfont); 22 self.btn2.grid(row=1,column=1,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 23 24 self.btn3=tkinter.Button(self.tk,text="3",font=self.sysfont); 25 self.btn3.grid(row=1,column=2,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 26 27 self.btn_divide=tkinter.Button(self.tk,text="÷",font=self.sysfon t); 28 self.btn_divide.grid(row=1,column=3,sticky=tkinter.N+tkinter.S+t kinter.W+tkinter.E); 29 30 31 self.btn4=tkinter.Button(self.tk,text="4",font=self.sysfont); 32 self.btn4.grid(row=2,column=0,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 33 34 self.btn5=tkinter.Button(self.tk,text="5",font=self.sysfont); 35 self.btn5.grid(row=2,column=1,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 36 37 self.btn6=tkinter.Button(self.tk,text="6",font=self.sysfont); 38 self.btn6.grid(row=2,column=2,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 39 40 self.btn_mult=tkinter.Button(self.tk,text="×",font=self.sysfont) ; 41 self.btn_mult.grid(row=2,column=3,sticky=tkinter.N+tkinter.S+tki nter.W+tkinter.E); 42 43 44 self.btn7=tkinter.Button(self.tk,text="7",font=self.sysfont); 45 self.btn7.grid(row=3,column=0,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 46 47 self.btn8=tkinter.Button(self.tk,text="8",font=self.sysfont); 48 self.btn8.grid(row=3,column=1,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 49 50 self.btn9=tkinter.Button(self.tk,text="9",font=self.sysfont); 51 self.btn9.grid(row=3,column=2,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 52 53 self.btn_minus=tkinter.Button(self.tk,text="-",font=self.sysfont ); 54 self.btn_minus.grid(row=3,column=3,sticky=tkinter.N+tkinter.S+tk inter.W+tkinter.E); 55 56 57 self.btn0=tkinter.Button(self.tk,text="0",font=self.sysfont); 58 self.btn0.grid(row=4,column=0,sticky=tkinter.N+tkinter.S+tkinter .W+tkinter.E); 59 60 self.btn_point=tkinter.Button(self.tk,text=".",font=self.sysfont ); 61 self.btn_point.grid(row=4,column=1,sticky=tkinter.N+tkinter.S+tk inter.W+tkinter.E); 62 63 self.btn_es=tkinter.Button(self.tk,text="=",font=self.sysfont); 64 self.btn_es.grid(row=4,column=2,sticky=tkinter.N+tkinter.S+tkint er.W+tkinter.E); 65 66 self.btn_add=tkinter.Button(self.tk,text="+",font=self.sysfont); 67 self.btn_add.grid(row=4,column=3,sticky=tkinter.N+tkinter.S+tkin ter.W+tkinter.E); 68 69 self.tk.mainloop(); 70 71 cal=Calculate();