python绘制一个八卦图

好的，以下是Python绘制八卦图的代码：

import turtle

# 创建画布和画笔
canvas = turtle.Screen()
pen = turtle.Turtle()

# 绘制圆形
def draw_circle(color, radius, x, y):
    pen.penup()
    pen.fillcolor(color)
    pen.goto(x, y)
    pen.pendown()
    pen.begin_fill()
    pen.circle(radius)
    pen.end_fill()

# 绘制半圆形
def draw_half_circle(color, radius, x, y):
    pen.penup()
    pen.goto(x, y)
    pen.pendown()
    pen.color(color)
    pen.circle(radius, 180)

# 绘制八卦图
def draw_ba_gua():
    draw_circle("black", 100, 0, 0)
    draw_half_circle("white", 50, 0, 100)
    draw_half_circle("black", 50, 0, -100)
    draw_circle("white", 10, 0, 50)
    draw_circle("black", 10, 0, -50)
    draw_half_circle("white", 50, 0, 0)
    draw_half_circle("black", 50, 0, 0)

# 调用绘制函数
draw_ba_gua()

# 隐藏画笔
pen.hideturtle()

# 显示画布
canvas.mainloop()

运行后可以看到绘制出来的八卦图。