python tkinter如何实现画出计算器界面？

from tkinter import *

# 创建窗体

root = Tk()

#添加标题

root.title("求两数之和")

root.geometry("700x80")

photo = PhotoImage(file = "/Users/yushengtan/Desktop/calc.png")

PhotoLabel = Label(root,image = photo).pack(side = LEFT,padx = 10,pady = 5)

#文本框

Entry01 = Entry(root,bg = "pink",width = 10,font = ("黑体",20)).pack(side = LEFT,padx = 5,pady = 5)

Label_plus = Label(root,text = "+",font = ("黑体",20)).pack(side = LEFT,padx = 5,pady = 5)

#文本框

Entry02 = Entry(root,bg = "pink",width = 10,font = ("黑体",20)).pack(side = LEFT,padx = 5,pady = 5)

Label_equal = Label(root,text = "=",font = ("黑体",20)).pack(side = LEFT,padx = 5,pady = 5)

#文本框

Entry03 = Entry(root,bg = "green",width = 10,font = ("华文黑体",20)).pack(side = LEFT,padx = 5,pady = 5)

Button01 = Button(root,text = "计算",width = 10,height = 2,font = ("华文黑体",15)).pack(side = LEFT,padx = 10,pady = 5)

# 运行

root.mainloop()