条件、循环、函数定义 练习

1.画五角星

import turtle
turtle.shape('turtle')
turtle.color('yellow')
turtle.fillcolor('yellow')

turtle.begin_fill()
for i in range(5):
    turtle.forward(100)
    turtle.right(144)
turtle.end_fill()

turtle.hideturtle()
turtle.done()

 

 

2.画同心圆

import turtle

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

 

 

3.画太阳花

 

import turtle
turtle.fillcolor("yellow")
turtle.begin_fill()
while True:
    turtle.forward(200)
    turtle.left(170)
    if(abs(turtle.pos()))<1:
        break
turtle.end_fill()
turtle.hideturtle()

 

4.画五个五角星

import turtle
turtle.setup(600,400,0,0)
turtle.color('yellow')
turtle.fillcolor('yellow')
turtle.bgcolor('red')


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

def my_draw5(r):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(r)
        turtle.right(144)
        turtle.end_fill()

my_goto(-300,150)
my_draw5(100)

my_goto(-200,250)
my_draw5(50)

my_goto(-100,200)
my_draw5(50)

my_goto(-100,80)
my_draw5(50)

my_goto(-100,0)
my_draw5(50)

turtle.hideturtle()

turtle.done()

 

5.画◇花瓣的太阳花。

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()