turtle基础练习

1.画一组同切圆

import turtle
 turtle.circle(10)
 turtle.circle(30)
 turtle.circle(40)

2.画一组同心圆

import turtle
 turtle.up()
 turtle.goto(0,-20)
 turtle.down()

turtle.circle(10)
 turtle.goto(0,-30)

 turtle.down()

turtle.circle(20)

 

3.画一个五角星

import turtle

for i in range(5):  
turtle.forward(50)
turtle.right(144)

4.画一个黄色实心五角星

import turtle
turtle.color('yellow')

turtle.fillcolor('yellow')

for i in range(5):    //利用for循环实现画图并填充
turtle.forward(50)
turtle.right(144)

turtle.end_fill()