实验8

from turtle import *
from random import random


def moveto(x, y):
    penup()
    goto(x, y)
    pendown()


setup(800, 600)


def rect(length, height, rgb=''):
    color(rgb)
    begin_fill()
    for m in range(2):
        fd(length)
        left(90)
        fd(height)
        left(90)
    end_fill()


moveto(-200,0)
speed(0)
for j in range(20):
    rgb = tuple(random() for i in range(3))
    rect(20, 100, rgb)
    fd(20)


hideturtle()
done()

 

 

 

tsak5

from turtle import *

setup(800, 600)
bgcolor('black')
pencolor('white')


angle = 0
size = 2
speed=0

n = 20
for i in range(n):
    for j in range(2):
        fd(size)
        angle += 72
        seth(angle)
        size += 5

hideturtle()
done()

 

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()


if __name__ == '__main__':
    main()

 

 task4

from turtle import *

setup(800, 600)
pencolor('pink')
speed(0)
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()