实验8

Task3.py

from turtle import *
def square(size=50, rgb=(1,0.7,0)):
    '''绘制正方形 参数size指定边长 参数rgb指定画笔颜色 如果没有给参数，采用默认值 '''
    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()

if __name__ == '__main__':
    main()

 

Task4.py

from turtle import *
setup(800, 600)
pencolor('pink')

n = 10
for i in range(n):
    # 绘制一片花瓣
    for j in range(2):
        circle(80, 90)
        left(90)

    right(360/n)

hideturtle()
done()

Task5.py

from turtle import *
setup(800, 600)
bgcolor('black')
pencolor('white')
speed(0)

angle = 0
size = 2
n = 10
for i in range(n):
    for j in range(5):
        fd(size)
        angle += 72
        seth(angle)
        size += 5

hideturtle()
done()

Task6.py

from turtle import *
from random import random

setup(800,600)
def rect(a,b,rgb=''):
    color(rgb)
    begin_fill()
    fd(a)
    left(90)
    fd(b)
    left(90)
    fd(a)
    left(90)
    fd(b)
    left(90)
    end_fill()

penup()
goto(-200,0)
pendown()

for i in range(20):
    rgb = tuple(random() for j in range(3))
    rect(20, 60, rgb)
    fd(20)

hideturtle()
done()