使用python实现简单的画多边形。

Posted 2020-10-04

import turtle
import time
import math

def polygon(bob,n,r):
    jiaoDu = 360/n
    juLi=2*r*math.sin(jiaoDu/180*math.pi/2)
    bob.pu()
    bob.fd(r)
    bob.lt(90+jiaoDu/2)
    bob.pd()
    for i in range(n):
        bob.fd(juLi)
        bob.lt(jiaoDu)
        time.sleep(0.5)

n=int(input("请输入边数："))
r=float(input("请输入半径："))
bob=turtle.Turtle()
polygon(bob,n,r)
turtle.mainloop()