1.实验任务1
task1_1.py
程序源代码：
from turtle import *
def move(x, y):
'''画笔移动到坐标(x,y)处'''
penup()
goto(x, y)
pendown()
def draw(n, size = 100):
'''绘制边长为size的正n变形'''
for i in range(n):
fd(size)
left(360/n)
def main():
pensize(2)
pencolor('red')
move(-200, 0)
draw(3)
move(0, 0)
draw(4)
move(200, 0)
draw(5)
hideturtle()
done()
main()
运行程序截图：
task1_2.py
程序源代码：
from turtle import *
def moveto(x, y):
'''画笔移动到坐标(x,y)处'''
penup()
goto(x, y)
pendown()
def main():
pensize(2)
pencolor('blue')
moveto(-150, 0)
circle(50)
moveto(0, 0)
circle(50,steps=4)
moveto(150, 0)
circle(50,steps=5)
moveto(300,0)
circle(50,steps=6)
hideturtle()
done()
main()
运行程序截图：
2.实验任务2
task2_1.py
程序源代码：
from turtle import *
def moveto(x, y):
'''画笔移动到坐标(x,y)处'''
penup()
goto(x, y)
pendown()
def main():
setup(800, 600)
radius = 20 # 圆初始半径
offset = 20 # 同心圆每次位移量
for i in range(9):
moveto(0, -radius)
circle(radius)
radius += offset
hideturtle()
done()
main()
运行程序截图：
task2_2.py
程序源代码：
from turtle import *
from random import random
def moveto(x, y):
'''画笔移动到坐标(x,y)处'''
penup()
goto(x, y)
pendown()
def gen_color():
return tuple(random() for i in range(3))
def main():
setup(800, 600)
radius = 180 # 圆初始半径
offset = 20 # 同心圆每次位移量
for i in range(8):
moveto(0, -radius)
color(gen_color())
begin_fill()
circle(radius)
end_fill()
radius += offset
hideturtle()
done()
main()
运行程序截图：
3.实验任务3
task3_1.py
程序源代码：
from turtle import *
def square(size = 50, rgb = 'orange'):
pencolor(rgb)
for i in range(4):
fd(size)
left(90)
def main():
setup(800, 600)
speed(0)
n = 10
for i in range(n):
square(80)
left(360/n)
hideturtle()
done()
main()
运行程序截图：
task3_2.py
程序源代码：
from turtle import *
setup(800, 600)
pencolor('pink')
n = 10
for i in range(10):
# 绘制一片花瓣
for j in range(2):
circle(80, 90)
left(90)
right(360/n)
hideturtle()
done()
运行程序截图：
4.实验任务4
task4.py
运行源代码：
from turtle import *
setup(800, 600)
bgcolor('black')
pencolor('white')
speed(0)
angle = 0
size = 2
n = 5 # 螺旋n边形
count = 50 # 循环次数
for i in range(count):
fd(size)
angle += 360/n
seth(angle)
size += 5
hideturtle()
done()
程序运行截图：
5.实验任务5
task5_1.py
实验源代码：
from turtle import *
def moveto(x, y):
penup()
goto(x, y)
pendown()
def main():
moveto(-100,-100)
color('black')
begin_fill()
for i in range(4):
forward(200)
left(90)
end_fill()
color('red')
begin_fill()
moveto(0,-100)
circle(100,steps=4)
end_fill()
main()
运行程序截图：
task5_2.py
程序源代码：
from turtle import *
def moveto(x, y):
penup()
goto(x, y)
pendown()
def main():
pencolor('blue')
pensize(2)
n=40
for i in range(5):
moveto(0,0)
forward(n)
left(90)
circle(n,90)
left(90)
forward(n)
left(90)
n+=20
main()
运行程序截图：
6.实验任务6
task6_2.py
程序源代码：
from turtle import *
def moveto(x, y):
penup()
goto(x, y)
pendown()
def main():
bgcolor('black')
color('yellow')
begin_fill()
moveto(0,0)
left(45)
forward(100)
left(90)
circle(100,270)
left(90)
forward(100)
end_fill()
moveto(15,60)
color('black')
begin_fill()
circle(10,360)
end_fill()
moveto(5,55)
color('white')
begin_fill()
circle(2,360)
end_fill()
hideturtle()
main()
运行程序截图：
标签：moveto,源代码,实验,circle,main,def,fill From： https://www.cnblogs.com/nettj666/p/17462085.html