python 同心圆

1、自定义带参函数def yuan，画一个圆

import turtle as t

def yuan(x,y,z,color):

      t.penup()

      t.goto(x,y)

      t.pendown()

      t.pencolor(color)

      t.pensize(3)

      t.circle(z)

2、导入到主程序main

import txy

color=["blue","black","red","yellow","green"]*3

for i,j,color1 in zip(range(10,160,10),range(40,-120,-10),color):

      txy.yuan(0,j,i,color1)

运行结果如下图：