import turtle turtle.pensize(2)#设置画笔宽度为两像素 turtle.circle(10)#绘制半径为10像素的圆 turtle.circle(40)#绘制半径为40像素的圆 turtle.circle(80)#绘制半径为80像素的圆 turtle.circle(160)#绘制半径为160像素的圆
运行结果如下:

import turtle turtle.pensize(2)#设置画笔宽度为两像素 turtle.circle(10)#绘制半径为10像素的圆 turtle.circle(40)#绘制半径为40像素的圆 turtle.circle(80)#绘制半径为80像素的圆 turtle.circle(160)#绘制半径为160像素的圆
运行结果如下: