条件、循环、函数定义 练习

画五角星

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

 

画同心圆

import turtle

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

　　

 

画太阳花

import turtle
turtle.color("pink")
turtle.begin_fill()
while True:
    turtle.forward(100)
    turtle.left(170)
    if(abs(turtle.pos()))<1:
        break
turtle.hideturtle()
turtle.done()

 

画五个五角星

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

def ching_zuobiao(x,y):
turtle.up()
turtle.goto(x,y)
turtle.down()
def ching_wujiao(r):
turtle.begin_fill()
for i in range(5):
turtle.forward(r)
turtle.right(144)
turtle.end_fill()

ching_zuobiao(-250,75)
ching_wujiao(100)

ching_zuobiao(-150,150)
ching_wujiao(50)

ching_zuobiao(-100,100)
ching_wujiao(50)

ching_zuobiao(-100,50)
ching_wujiao(50)

ching_zuobiao(-150,0)
ching_wujiao(50)

turtle.hideturtle()

 

画◇花瓣的太阳花。

import turtle
turtle.speed(10)
turtle.color("lightblue")
turtle.fillcolor("pink")
turtle.begin_fill()
def ching_long():
    for i in range(2):
        turtle.forward(100)
        turtle.right(45)
        turtle.forward(100)
        turtle.right(135)

for i in range(36):
    ching_long()
    turtle.right(10)
turtle.end_fill()
turtle.right(90)
turtle.forward(300)

turtle.hideturtle()