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caculator.py
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from tkinter import Tk, Entry, Button, StringVar
class Caculator:
def __init__(self, master):
master.title("Calculator")
master.geometry('357x420+0+0')
master.config(bg='gray')
master.resizable(False, False)
self.equation = StringVar()
self.entry_value = ''
Entry(width = 17, bg='#ccddff', font=('Arial Bold',28), textvariable= self.equation).place(x=0,y=0)
Button(width=11,height=4,text='(',relief='flat',bg='white',command=lambda:self.show('(')).place(x= 0, y=50)
Button(width=11,height=4,text=')',relief='flat',bg='white',command=lambda:self.show(')')).place(x= 90, y= 50)
Button(width=11,height=4,text='%',relief='flat',bg='white',command=lambda:self.show('%')).place(x= 180, y=50)
Button(width=11,height=4,text='/',relief='flat',bg='white',command=lambda:self.show('/')).place(x= 270, y=50)
Button(width=11,height=4,text='1',relief='flat',bg='white',command=lambda:self.show(1)).place(x= 0, y=125)
Button(width=11,height=4,text='2',relief='flat',bg='white',command=lambda:self.show(2)).place(x= 90, y=125)
Button(width=11,height=4,text='3',relief='flat',bg='white',command=lambda:self.show(3)).place(x= 180, y=125)
Button(width=11,height=4,text='4',relief='flat',bg='white',command=lambda:self.show(4)).place(x= 0, y=200)
Button(width=11,height=4,text='5',relief='flat',bg='white',command=lambda:self.show(5)).place(x= 90, y=200)
Button(width=11,height=4,text='6',relief='flat',bg='white',command=lambda:self.show(6)).place(x= 180, y=200)
Button(width=11,height=4,text='7',relief='flat',bg='white',command=lambda:self.show(7)).place(x= 0, y=275)
Button(width=11,height=4,text='8',relief='flat',bg='white',command=lambda:self.show(8)).place(x= 90, y=275)
Button(width=11,height=4,text='9',relief='flat',bg='white',command=lambda:self.show(9)).place(x= 180, y=275)
Button(width=11,height=4,text='0',relief='flat',bg='white',command=lambda:self.show(0)).place(x= 90, y=350)
Button(width=11,height=4,text='+',relief='flat',bg='white',command=lambda:self.show('+')).place(x= 270, y=275)
Button(width=11,height=4,text='-',relief='flat',bg='white',command=lambda:self.show('-')).place(x= 270, y=200)
Button(width=11,height=4,text='*',relief='flat',bg='white',command=lambda:self.show('*')).place(x= 270, y=125)
Button(width=11,height=4,text='.',relief='flat',bg='white',command=lambda:self.show('.')).place(x= 180, y=350)
Button(width=11,height=4,text='=',relief='flat',bg='lightblue',command=self.solve).place(x= 270, y=350)
Button(width=11,height=4,text='C',relief='flat',bg = 'lightgray',command=self.clear).place(x= 0, y=350)
def show(self, value):
self.entry_value+=str(value)
self.equation.set(self.entry_value)
def clear(self):
self.entry_value=''
self.equation.set(self.entry_value)
def solve(self):
self.entry_value = str(eval(self.entry_value))
self.equation.set(self.entry_value)
root = Tk()
caculator = Caculator(root)
root.mainloop()