import turtle
pen=turtle.Turtle()
pen.speed(0)
n=int(turtle.numinput("边数","请输入边数："))
name=turtle.textinput("姓名","请输入姓名：")
colors=["red","green","blue","yellow","black"]

angle=360/n+1
for i in range(360):
    pen.pencolor(colors[i%n])
    pen.penup()
    pen.forward(i*10)
    pen.pendown()
    pen.write(name,font=("华文行楷",int(i/50)))
    pen.right(angle)
    pen.pensize(i/20)