如何用Python绘制圣诞树

您好，以下是用 Python 绘制圣诞树的代码：

# 导入需要用到的库
import turtle

# 定义绘制圣诞树的函数
def draw_tree(t, trunk_length, height):
    if height <= :
        return
    t.forward(trunk_length)
    t.left(45)
    draw_tree(t, trunk_length * .6, height - 1)
    t.right(90)
    draw_tree(t, trunk_length * .6, height - 1)
    t.left(45)
    t.backward(trunk_length)

# 创建画布和画笔
canvas = turtle.Screen()
canvas.bgcolor("white")
pen = turtle.Turtle()
pen.speed()
pen.color("green")

# 绘制圣诞树
pen.penup()
pen.goto(, -200)
pen.pendown()
draw_tree(pen, 150, 5)

# 绘制圣诞树的装饰品
pen.penup()
pen.goto(-100, 50)
pen.pendown()
pen.color("red")
pen.begin_fill()
pen.circle(20)
pen.end_fill()

pen.penup()
pen.goto(100, 50)
pen.pendown()
pen.color("blue")
pen.begin_fill()
pen.circle(20)
pen.end_fill()

# 隐藏画笔
pen.hideturtle()

# 点击画布退出程序
canvas.exitonclick()

希望能帮到您！