条件、循环、函数定义 练习

import turtle 
#五角星
turtle.color('yellow')



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

import turtle
#同心圆
def tongxinyuan(r):
    for i in range(5):
        turtle.penup()
        turtle.goto(0,-50*(i+1))
        turtle.pendown()
        turtle.circle(r*(i+1))




tongxinyuan(50)

import turtle

#太阳花
turtle.bgcolor('black')
turtle.color('gray','white')
turtle.speed("fastest")
turtle.begin_fill()
while True:
    turtle.forward(250)
    turtle.left(155)
    if abs(turtle.pos())<1:
        break
turtle.end_fill()

turtle.done()

import turtle

#五个五角星
turtle.bgcolor('red')
turtle.color('yellow')

#画一个五角星
def wujiaoxin1(x,y):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(x)
        turtle.right(y)
    turtle.end_fill()

def wujiaoxin2(x,y):
    turtle.begin_fill()
    for i in range(5):
        turtle.forward(x)
        turtle.left(y)
    turtle.end_fill()


#定义坐标
def zuobiao(x,y):
    turtle.up()
    turtle.goto(x,y)
    turtle.down()

    
zuobiao(-330,190)
wujiaoxin1(100,144)

zuobiao(-190,250)
wujiaoxin2(50,144)

zuobiao(-150,170)
wujiaoxin2(50,144)

zuobiao(-150,110)
wujiaoxin1(50,144)

zuobiao(-190,20)
wujiaoxin2(50,144)

import turtle
turtle.bgcolor('black')
turtle.color('gray','black')
turtle.speed("fastest")


turtle.begin_fill()
for i in range(73):
    turtle.forward(150)
    turtle.left(45)
    turtle.forward(150)
    turtle.left(135)
    turtle.forward(150)
    turtle.left(45)
    turtle.forward(150)
    turtle.left(135)
    turtle.left(5)
turtle.end_fill()