我要评论运行效果：
完整代码
from tkinter import *
def click(num):
global op
op=op+str(num)
iptext.set(op)
def evaluate():
global op
output=str(eval(op))
iptext.set(output)
def cleardisplay():
global op
op=""
iptext.set(op)
calc=tk()
calc.title("techvidvan calculator")
op=""
iptext=stringvar()
iparea=entry(calc,font=('large,_font',15,'bold'),bd=10,justify="right",insertwidth=4,textvariable=iptext).grid(columnspan=10)
bt7=button(calc,font=('arial',15,'bold'),command=lambda:click(7),bg="lavender",text="7",bd=5,padx=15,pady=10).grid(row=1,column=0)
bt8=button(calc,font=('arial',15,'bold'),command=lambda:click(8),bg="lavender",text="8",bd=5,padx=15,pady=10).grid(row=1,column=1)
bt9=button(calc,font=('arial',15,'bold'),command=lambda:click(9),bg="lavender",text="9",bd=5,padx=15,pady=10).grid(row=1,column=2)
add=button(calc,font=('arial',15,'bold'),command=lambda:click('+'),bg="lavender",text="+",bd=5,padx=15,pady=10).grid(row=1,column=3)
bt4=button(calc,font=('arial',15,'bold'),command=lambda:click(4),bg="lavender",text="4",bd=5,padx=15,pady=10).grid(row=2,column=0)
bt5=button(calc,font=('arial',15,'bold'),command=lambda:click(5),bg="lavender",text="5",bd=5,padx=15,pady=10).grid(row=2,column=1)
bt6=button(calc,font=('arial',15,'bold'),command=lambda:click(6),bg="lavender",text="6",bd=5,padx=15,pady=10).grid(row=2,column=2)
sub=button(calc,font=('arial',15,'bold'),command=lambda:click('-'),bg="lavender",text="-",bd=5,padx=15,pady=10).grid(row=2,column=3)
bt1=button(calc,font=('arial',15,'bold'),command=lambda:click(1),bg="lavender",text="1",bd=5,padx=15,pady=10).grid(row=3,column=0)
bt2=button(calc,font=('arial',15,'bold'),command=lambda:click(2),bg="lavender",text="2",bd=5,padx=15,pady=10).grid(row=3,column=1)
bt3=button(calc,font=('arial',15,'bold'),command=lambda:click(3),bg="lavender",text="3",bd=5,padx=15,pady=10).grid(row=3,column=2)
mul=button(calc,font=('arial',15,'bold'),command=lambda:click('*'),bg="lavender",text="*",bd=5,padx=15,pady=10).grid(row=3,column=3)
bt0=button(calc,font=('arial',15,'bold'),command=lambda:click(0),bg="lavender",text="0",bd=5,padx=15,pady=10).grid(row=4,column=0)
btc=button(calc,font=('arial',15,'bold'),command=cleardisplay,bg="lavender",text="c",bd=5,padx=15,pady=10).grid(row=4,column=1)
eql=button(calc,font=('arial',15,'bold'),command=evaluate,bg="lavender",text="=",bd=5,padx=15,pady=10).grid(row=4,column=2)
div=button(calc,font=('arial',15,'bold'),command=lambda:click('/'),bg="lavender",text="/",bd=5,padx=15,pady=10).grid(row=4,column=3)
calc.mainloop()
以上就是python 实现简单的计算器的详细内容，更多关于python 计算器的资料请关注移动技术网其它相关文章！
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