实验6 turtle绘图与python库应用编程体验

实验任务1：使用turtle绘制基础图形

task1_1.py

实验源码：

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

实验结果：

task1_2.py

实验源码：

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

实验结果：

实验任务2：使用turtle绘制9个同心圆

task2_1.py

实验源码：

 1 from turtle import*
 2 
 3 def moveto(x,y):
 4     penup()
 5     goto(x,y)
 6     pendown()
 7 
 8 def main():
 9     setup(800,600)
10 
11     radius=20
12     offset=20
13 
14     for i in range(9):
15         moveto(0,-radius)
16         circle(radius)
17         radius+=offset
18 
19     hideturtle()
20     done()
21 
22 main()

实验结果：

task2_2.py

实验源码：

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

实验结果：

实验任务3：使用turtle绘制花瓣效果

task3_1.py

实验源码:

 1 from turtle import*
 2 
 3 def square(size=50,rgb='orange'):
 4     '''
 5     :para:size:int
 6     :para:c:str
 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()

实验结果：

task3_2.py

实验源码：

 1 from turtle import*
 2 
 3 setup(800,600)
 4 pencolor('pink')
 5 
 6 n=10
 7 for i in range(10):
 8     for j in range(2):
 9         circle(80,90)
10         left(90)
11 
12     right(360/n)
13 
14 
15 hideturtle()
16 done()

实验结果：

实验任务4：使用turtle绘制螺旋多边形

task4.py

实验源码：

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

实验结果：

实验任务5：使用turtle绘制基础图形

task5_1.py

实验源码：

 1 from turtle import *
 2 
 3 
 4 def move(x,y):
 5     penup()
 6     goto(x,y)
 7     pendown()
 8 
 9 
10 def draw(n,a,size = 100):
11     color(a)
12     begin_fill()
13 
14     for i in range(n):
15         fd(size)
16         left(360/n)
17     end_fill()
18 
19 
20 move(-100,-100)
21 draw(4,'black',200)
22 move(-100,0)
23 right(45)
24 draw(4,'red',100*(2)**0.5)
25 
26 
27 hideturtle()
28 done()

实验结果：

task5_2.py

实验源码：

 1 from turtle import *
 2 
 3 
 4 pensize(2)
 5 def move(x,y):
 6     penup()
 7     goto(x,y)
 8     pendown()
 9 
10 def quarter_round(r):
11     pencolor('blue')
12     move(0,r)
13     circle(-r,90)
14 
15     for i in range(2):
16         right(90)
17         fd(r)
18     home()
19 
20 radius=40
21 offset=20
22 for i in range(5):
23     quarter_round(radius)
24     radius+=offset
25 
26 
27 hideturtle()
28 done()

实验结果：

实验任务6：绘图

task6.py

实验源码：

 1 from turtle import *
 2 
 3 def move(x,y):
 4     penup()
 5     goto(x,y)
 6     pendown()
 7 
 8 bgcolor('black')
 9 color('yellow')
10 move(0,-100)
11 begin_fill()
12 circle(100)
13 end_fill()
14 color('black')
15 speed(0)
16 move(87,-51)
17 seth(60)
18 begin_fill()
19 circle(100,80)
20 home()
21 end_fill()
22 move(-30,60)
23 dot(30,'black')
24 move(-38,60)
25 dot(5,'white')
26 
27 hideturtle()
28 done()

实验结果：