Python 练习实例64

Python 100例 Python 100例

题目:利用ellipse 和 rectangle 画图。。 

程序分析:无。

程序源代码:

#!/usr/bin/python
# -*- coding: UTF-8 -*-
if __name__ == '__main__':
 from Tkinter import *
 canvas = Canvas(width = 400,height = 600,bg = 'white')
 left = 20
 right = 50
 top = 50
 num = 15
 for i in range(num):
 canvas.create_oval(250 - right,250 - left,250 + right,250 + left)
 canvas.create_oval(250 - 20,250 - top,250 + 20,250 + top)
 canvas.create_rectangle(20 - 2 * i,20 - 2 * i,10 * (i + 2),10 * ( i + 2))
 right += 5
 left += 5
 top += 10
 canvas.pack()
 mainloop()

以上实例输出结果为:

Python 100例 Python 100例

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