Python如何实现GUI计算器(gui,python,开发技术)

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效果

可执行正常加减乘除相关运算，源码已贴，自行测试。

源码

#coding=gbk"""作者：川川@时间:2022/11/63:10"""fromtkinterimport*calc=Tk()calc.title('川川计算器')operator=''defclear():globaloperatoroperator=''txt_input.set("")display.insert(0,'开始计算...')defbutton_press(number_or_operator):globaloperatoroperator=operator+str(number_or_operator)txt_input.set(operator)defequal():globaloperatorresult=float(eval(operator))txt_input.set(result)operator=''txt_input=StringVar(value='开始计算...')#-----------------DISPLAY-----------------------------------display=Entry(calc,font=('arial',30),fg='white',bg='green',justify='right',bd='50',textvariable=txt_input)display.grid(columnspan=4)#------------------row1--------------------------------------button7=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='7',command=lambda:button_press(7)).grid(row=1,column=0)button8=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='8',command=lambda:button_press(8)).grid(row=1,column=1)button9=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='9',command=lambda:button_press(9)).grid(row=1,column=2)button_clear=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='green',font=('arial',30,'bold'),text='C',command=clear).grid(row=1,column=3)#------------------row2--------------------------------------button4=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='4',command=lambda:button_press(4)).grid(row=2,column=0)button5=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='5',command=lambda:button_press(5)).grid(row=2,column=1)button6=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='6',command=lambda:button_press(6)).grid(row=2,column=2)button_plus=Button(calc,padx=34,pady=12,bd=8,fg='black',bg='orange',font=('arial',30,'bold'),text='+',command=lambda:button_press('+')).grid(row=2,column=3)#------------------row3--------------------------------------button1=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='1',command=lambda:button_press(1)).grid(row=3,column=0)button2=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='2',command=lambda:button_press(2)).grid(row=3,column=1)button3=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='3',command=lambda:button_press(3)).grid(row=3,column=2)button_minus=Button(calc,padx=38,pady=12,bd=8,fg='black',bg='orange',font=('arial',30,'bold'),text='-',command=lambda:button_press('-')).grid(row=3,column=3)#------------------row4--------------------------------------button_0=Button(calc,padx=30,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='0',command=lambda:button_press(0)).grid(row=4,column=0)button_dot=Button(calc,padx=36,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='.',command=lambda:button_press('.')).grid(row=4,column=1)button_divide=Button(calc,padx=36,pady=12,bd=8,fg='black',bg='orange',font=('arial',30,'bold'),text='/',command=lambda:button_press('/')).grid(row=4,column=2)button_mult=Button(calc,padx=38,pady=12,bd=8,fg='black',bg='orange',font=('arial',30,'bold'),text='*',command=lambda:button_press('*')).grid(row=4,column=3)#------------------row5--------------------------------------button_equal=Button(calc,padx=95,pady=12,bd=8,fg='black',bg='green',font=('arial',30,'bold'),text='=',command=equal).grid(row=5,column=0,columnspan=2)button_open=Button(calc,padx=35,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text='(',command=lambda:button_press('(')).grid(row=5,column=2)button_close=Button(calc,padx=38,pady=12,bd=8,fg='black',bg='white',font=('arial',30,'bold'),text=')',command=lambda:button_press(')')).grid(row=5,column=3)calc.mainloop()

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