from tkinter import *from tkinter import ttkimport time#画窗口root = Tk()root.geometry('1000x500')root.resizable(False, False)graph = Canvas(root, width=1000, height=550, background='black')#后面查点和删点的时候需要画布类graph.grid()#初始化点tracePlot=[20,20,30,30,40,50,5