1.用函数画多边形
import random
import turtle
def ert(count,length,angle):
for i in range(count):
b = random.random()
g = random.random()
r = random.random()
turtle.pencolor(r,g,b)
turtle.fd(i) # 修改长度跟每次循环的值一样
turtle.right(angle)
turtle.speed(100)
ert(500,300,114)
turtle.done()
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