python笔记（tkinter）（四）

canvas

创建画布
示例：

from Tkinter import*tk=Tk()tk.title("top")canvas=Canvas(tk,height='250',width="250")canvas.pack()tk.mainloop()

结果：

turtle画图

结果：

import turtlet=turtle.Pen()for x in range(1,5):    t.forward(50)    t.left(90)

结果：

画图

from Tkinter import *tk=Tk()canvas=Canvas(tk,height=500,width=500)canvas.pack()canvas.create_line(0,0,500,500,fill='green')canvas.create_rectangle(400,400,450,450,fill='yellow')canvas.create_rectangle(10,30,50,200,fill='blue')canvas.create_oval(20,200,200,500,fill='green')canvas.create_polygon(200,10,240,30,120,100,140,120,fill='red',outline='black')canvas.create_polygon(300,200,260,30,450,100,fill='grey',outline='black')tk.mainloop()

结果：

动画

import timefrom Tkinter import *tk=Tk()canvas=Canvas(tk,width=400,height=200)canvas.pack()canvas.create_polygon(10,10,10,60,50,35)for x in range(0,60):    canvas.move(1,5,0)    tk.update()    time.sleep(0.05)

结果：