用python写一朵玫瑰花

以下是用 Python 编写一朵玫瑰花的代码：

import turtle

# 设置画笔
pen = turtle.Turtle()
pen.speed(10)
pen.color("red", "green")
pen.begin_fill()

# 绘制花瓣
for i in range(20):
    pen.forward(200)
    pen.left(170)

# 绘制花蕊
pen.penup()
pen.goto(0, 0)
pen.pendown()
pen.color("yellow")
pen.begin_fill()
pen.circle(25)
pen.end_fill()

# 隐藏画笔
pen.hideturtle()

# 显示绘图窗口
turtle.done()

运行上述代码，即可在绘图窗口中看到一朵玫瑰花的绘制效果。