Canvas绘制五角星 

 1 from tkinter import *
 2 import math as m
 3 
 4 root = Tk()
 5 
 6 w = Canvas(root, width=200, height=100, background="red")
 7 w.pack()
 8 
 9 center_x = 100
10 center_y = 50
11 r = 50
12 
13 points = [
14     # 左上点
15     center_x - int(r * m.sin(2 * m.pi / 5)),
16     center_y - int(r * m.cos(2 * m.pi / 5)),
17     # 右上点
18     center_x + int(r * m.sin(2 * m.pi / 5)),
19     center_y - int(r * m.cos(2 * m.pi / 5)),
20     # 左下点
21     center_x - int(r * m.sin(m.pi / 5)),
22     center_y + int(r * m.cos(m.pi / 5)),
23     # 顶点
24     center_x,
25     center_y - r,
26     # 右下点
27     center_x + int(r * m.sin(m.pi / 5)),
28     center_y + int(r * m.cos(m.pi / 5))
29     ]
30 
31 w.create_polygon(points, outline="", fill="")
32 
33 mainloop()

posted @ 2017-04-27 20:41  道高一尺  阅读(476)  评论(0)    收藏  举报