条件、循环、函数定义 练习

a.

import turtle

turtle.fillcolor("yellow")
turtle.begin_fill()
for i in range(5):
    turtle.forward(100)
    turtle.right(144)

turtle.end_fill()
turtle.hideturtle()

b.

import turtle

for i in range(5):
    turtle.up()
    turtle.goto(0,-20*(i+1))
    turtle.down()
    turtle.circle(20*(i+1))
    
turtle.hideturtle()

c.

from turtle import*

color('red','yellow')
begin_fill()
while True:
    forward(300)
    left(170)
    if (abs(pos()))<1:
        break
end_fill()
done()

d.

import turtle
turtle.bgcolor('red')

def m_goto(x,y):
    turtle.up()
    turtle.goto(x,y)
    turtle.down()

def m_draw(r):
    turtle.pencolor('yellow')
    turtle.fillcolor('yellow')
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(r)
        turtle.right(144)
    turtle.end_fill()

m_goto(-550,180)
m_draw(150)


m_goto(-295,250)
turtle.left(50)
m_draw(50)

m_goto(-220,173)
turtle.left(44)
m_draw(50)

m_goto(-190,80)
turtle.left(50)
m_draw(50)

m_goto(-250,50)
turtle.left(50)
m_draw(50)

turtle.hideturtle()
turtle.done()

e.

import turtle
turtle.speed(10)
turtle.fillcolor("yellow")
turtle.pencolor("red")
turtle.begin_fill()
def draw_leng():
    for i in range(1,3):
        turtle.forward(100)
        turtle.right(45)
        turtle.forward(100)
        turtle.right(135)

for i in range(1,37):
    draw_leng()
    turtle.right(10)
turtle.end_fill()
turtle.right(90)
turtle.forward(300)

turtle.hideturtle()