实验8
1 from turtle import * 2 3 def square(size=50, rgb='yellow'): 4 '''绘制正方形 5 参数size指定边长 6 参数rgb指定画笔颜色 7 如果没有给参数,采用默认值 8 ''' 9 pencolor(rgb) 10 for i in range(4): 11 fd(size) 12 left(90) 13 14 15 def main(): 16 setup(800, 600) 17 speed(0) 18 19 n = 10 20 for i in range(n): 21 square(80) 22 left(360/n) 23 24 hideturtle() 25 done() 26 27 28 if __name__ == '__main__': 29 main()
1 from turtle import * 2 3 setup(800, 600) 4 pencolor('pink') 5 6 n = 10 7 for i in range(n): 8 # 绘制一片花瓣 9 for j in range(2): 10 circle(80, 90) 11 left(90) 12 13 right(360/n) 14 15 hideturtle() 16 done()
1 from turtle import * 2 3 setup(800, 600) 4 bgcolor('black') 5 pencolor('white') 6 speed(0) 7 8 angle = 0 9 size = 2 10 11 n = 10 12 for i in range(n): 13 for j in range(4): 14 fd(size) 15 angle += 72 16 seth(angle) 17 size += 5 18 19 hideturtle() 20 done()
1 from turtle import * 2 from random import random 3 4 5 def square(long=100, wide=40, rgb='black'): 6 pencolor(rgb) 7 for i in range(2): 8 rgb = tuple(random() for i in range(3)) # 随机生成rgb颜色三元组 color(rgb) 9 begin_fill() 10 fillcolor(rgb) 11 fd(wide) 12 left(90) 13 fd(long) 14 left(90) 15 fd(wide) 16 end_fill() 17 18 19 def moveto(x, y): 20 penup() 21 goto(x, y) 22 pendown() 23 24 25 setup(600, 600) 26 bgcolor('white') 27 moveto(-300, 0) 28 speed(0) 29 n = 20 30 for i in range(n + 1): 31 square() 32 33 hideturtle() 34 done()
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