实验6 turtle绘图与python库应用编程体验

task1-1

程序源码：

 1 from turtle import *
 2 
 3 def move(x, y):
 4     '''画笔移动到坐标(x,y)处'''
 5     penup()
 6     goto(x, y)
 7     pendown()
 8 
 9 def draw(n, size = 100):
10     '''绘制边长为size的正n变形'''
11     for i in range(n):
12         fd(size)
13         left(360/n)
14 
15 def main():
16     pensize(2)
17     pencolor('red')
18 
19     move(-200, 0)
20     draw(3)
21 
22     move(0, 0)
23     draw(4)
24 
25     move(200, 0)
26     draw(5)
27 
28     hideturtle()
29     done()
30 
31 main()

运行截图：

task1-2

程序源码：

 1 from turtle import *
 2 
 3 def moveto(x, y):
 4     '''把画笔移动至坐标(x, y)处'''
 5     penup()
 6     goto(x, y)
 7     pendown()
 8 
 9 def main():
10     pensize(2)
11     pencolor('blue')
12 
13     moveto(-150, 0)
14     circle(50)
15 
16     moveto(0, 0)
17     circle(50, steps = 4)
18 
19     moveto(150, 0)
20     circle(50, steps = 5)
21 
22     moveto(300, 0)
23     circle(50, steps = 6)
24 
25     hideturtle()
26     done()
27 main()

运行截图：

 

task2-1

程序源码：

 1 '''以(0,0)为圆心，绘制9个同心圆'''
 2 
 3 from turtle import *
 4 
 5 def moveto(x, y):
 6     '''把画笔移至坐标(x,y)处'''
 7     penup()
 8     goto(x, y)
 9     pendown()
10 
11 def main():
12     setup(800, 600)
13 
14     radius = 20 # 圆初始半径
15     offset = 20 # 同心圆每次位移量
16     for i in range(9):
17         moveto(0, -radius)
18         circle(radius)
19         radius += offset
20     hideturtle()
21     done()
22 
23 main()

运行截图：

 

task2-2

程序源码：

 1 from turtle import *
 2 
 3 from random import random
 4 
 5 def moveto(x,y):
 6     penup()
 7     goto(x,y)
 8     pendown
 9 
10 def gen_color():
11     return tuple((random() for i in range(3)))
12 
13 def main():
14     setup(800,600)
15 
16     radius = 180
17     offset = 20
18 
19     for i in range(8):
20         moveto(0,-radius)
21         color(gen_color())
22 
23         begin_fill()
24         circle(radius)
25         end_fill()
26 
27         radius -= offset
28 
29     hideturtle()
30     done()
31 
32 main()

运行截图：

 

task3-1

程序源码：

 1 from turtle import *
 2 
 3 def square(size = 50, rgb = 'orange'):
 4     '''绘制正方形
 5     :para: size:int 指定边长 (如未指定参数，使用默认值）
 6     :para: c: str 指定画笔颜色值 (如未指定参数，使用默认值）
 7     '''
 8 
 9     pencolor(rgb)
10     for i in range(4):
11         fd(size)
12         left(90)
13 
14 def main():
15     setup(800, 600)
16     speed(0)
17 
18     n = 10
19     for i in range(n):
20         square(80)
21         left(360/n)
22 
23     hideturtle()
24     done()
25 
26 main()

运行截图：

 

task3-2

程序源码：

 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()

运行截图：

 

task4

程序源码：

 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 = 5 # 螺旋n边形
12 count =50 # 循环次数
13 for i in range(count):
14     fd(size)
15     angle += 360/n
16     seth(angle)
17     size += 5
18 
19 hideturtle()
20 done()

运行截图：

 

task5-1

程序源码：

 1 from turtle import *
 2 
 3 def start(x,y):
 4     penup()
 5     goto(x,y)
 6     pendown()
 7 
 8 def main(c,n,l):
 9     color(c)
10     begin_fill()
11     for i in range(n):
12         fd(l)
13         left(360/n)
14     end_fill()
15 
16 start(-100,-100)
17 main('black',4,200)
18 
19 start(-100,0)
20 right(45)
21 main('red',4,100*2**(1/2))
22 
23 hideturtle()
24 done()

运行截图：

 

task5-2

程序源码：

 1 from turtle import *
 2 color('blue')
 3 r = 20
 4 for i in range(5):
 5     r += 20
 6     forward(r)
 7     left(90)
 8     circle(r,90)
 9     left(90)
10     forward(r)
11     left(90)
12     forward(40)
13     goto(0,0)
14 hideturtle()
15 done()

运行截图：

 

task6

程序源码：

 1 #6
 2 from turtle import *
 3 bgcolor('black')
 4 pencolor('yellow')
 5 
 6 color('yellow')
 7 begin_fill()
 8 left(45)
 9 fd(100)
10 left(90)
11 circle(100,270)
12 left(90)
13 fd(100)
14 end_fill()
15 
16 penup()
17 goto(0,60)
18 pendown()
19 color('black')
20 begin_fill()
21 circle(10)
22 end_fill()
23 
24 color('white')
25 begin_fill()
26 penup()
27 goto(-10,60)
28 pendown()
29 circle(2)
30 end_fill()
31 
32 hideturtle()
33 done()

运行截图：

 

posted @ 2023-06-11 20:37  裴书语  阅读(26)  评论(0)    收藏  举报