实验八

task3

from turtle import *
def square(size=50, rgb='orange'):
    '''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()
main()

 

 

 

task4

from turtle import *
setup(800, 600)
pencolor('pink')
n = 10
speed(0)
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

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 += 360/5
        seth(angle)
        size += 5
hideturtle()
done()

 

 

 

task6

from random import random
from turtle import *
def rect():
    rgb = tuple(random() for i in range(3))
    color(rgb)
    begin_fill()
    for i in range(2):
        fd(20)
        left(90)
        fd(60)
        left(90)
    end_fill()
def main():
    goto(-11*20, 0)
    for i in range(20):
        rect()
        fd(20)
setup(800, 600)
speed(0)
main()