时间:2021-07-01 10:21:17 帮助过:60人阅读
什么是rectangle:
rectangle是存储一组整数,共四个,表示一个矩形的位置和大小
语法:
[SerializableAttribute] [TypeConverterAttribute(typeof(RectangleConverter))] [ComVisibleAttribute(true)] public struct Rectangle
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:

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