循环 函数

画五角星

输入

import turtle

turtle.pos()
turtle.color('red')

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

输出

 

 

画同心圆

输入

import turtle

turtle.pos()
turtle.color('red')

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

 

输出

 

 

画太阳花

输入

 

import turtle


turtle.color('orange')
turtle.fillcolor('pink')
turtle.begin_fill()
while True:
    turtle.forward(100)
    turtle.left(150)
    if (abs(turtle.pos()))<1:
        break
turtle.end_fill()        
turtle.hideturtle()

 

输出

 

画五个角星

import turtle

turtle.pos()
turtle.color('yellow')
turtle.bgcolor('red')
turtle.fillcolor('yellow')
turtle.speed(100)

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

def my_star(r):
    for i in range(5):
        turtle.forward(r)
        turtle.right(144)

turtle.begin_fill()
my_goto(-390,180)
my_star(140)
turtle.end_fill()

turtle.begin_fill()
my_goto(-150,240)
my_star(40)
turtle.end_fill()

turtle.begin_fill()
my_goto(-90,180)
my_star(40)
turtle.end_fill()

turtle.begin_fill()
my_goto(-90,90)
my_star(40)
turtle.end_fill()

turtle.begin_fill()
my_goto(-150,30)
my_star(40)
turtle.end_fill()

turtle.hideturtle()

输出