Python初试-turtle

1、正方形

import turtle
t=turtle.Turtle()
for i in range(4):
    t.forward(100)
    t.left(360/4)

2、五边形

import turtle
t=turtle.Turtle()
for i in range(5):
    t.forward(100)
    t.left(360/5)

3、边框颜色

import turtle
t=turtle.Turtle()
t.color("red")
for i in range(5):
    t.forward(100)
    t.left(360/5)

4、填充颜色

import turtle
t=turtle.Turtle()
t.color("red","yellow")
t.begin_fill()
for i in range(5):
    t.forward(100)
    t.left(360/5)
t.end_fill()

5、五角星

import turtle
t=turtle.Turtle()
t.color("red","yellow")
t.begin_fill()
for i in range(5):
    t.forward(100)
    t.right(144)
t.end_fill()

6、正方形圈

import turtle
t=turtle.Turtle()
t.speed(10)
for j in range(10):
      for i in range(4):
        t.down()
        t.forward(10+j*20)
        t.left(90)
    t.up()
    t.goto(-10*(j+1),-10*(j+1))

7、同心圆

import turtle
t=turtle.Turtle()
t.speed(10)
for i in range(5,0,-1):
    t.up()
    t.goto(0,-30*i)
    t.down()
    t.circle(30*i)

8、填充颜色同心圆

import turtle
t=turtle.Turtle()
t.speed(10)
colors=["red","blue","yellow","purple","green"]
for i in range(5,0,-1):
    t.up()
    t.goto(0,-30*i)
    t.color(colors[i%5])
    t.begin_fill()
    t.down()
    t.circle(30*i)
    t.end_fill()