python樱花树动态源代码

以下是一个简单的Python程序，可用于绘制动态樱花树：

import turtle
import random

# 设置画布和画笔
canvas = turtle.Screen()
canvas.bgcolor("black")
pen = turtle.Turtle()
pen.hideturtle()

# 定义一个樱花树函数
def draw_tree(branch_len, angle):
    if branch_len > 5:
        pen.pensize(branch_len / 10)
        pen.forward(branch_len)
        angle1 = random.randint(20, 30)
        angle2 = random.randint(20, 30)
        scale1 = random.uniform(0.6, 0.8)
        scale2 = random.uniform(0.6, 0.8)
        pen.right(angle1)
        draw_tree(branch_len * scale1, angle)
        pen.left(angle1 + angle2)
        draw_tree(branch_len * scale2, angle)
        pen.right(angle2)
        pen.backward(branch_len)

# 绘制樱花
def draw_flower(petal_count):
    pen.color("pink")
    pen.begin_fill()
    for _ in range(petal_count):
        pen.circle(10, 90)
        pen.circle(-10, 90)
    pen.end_fill()

# 绘制樱花树
pen.speed(0)
pen.penup()
pen.goto(0, -200)
pen.pendown()
pen.left(90)
draw_tree(100, 20)

# 绘制樱花
for _ in range(50):
    x = random.randint(-300, 300)
    y = random.randint(-200, 200)
    pen.penup()
    pen.goto(x, y)
    pen.pendown()
    draw_flower(random.randint(5, 10))

# 隐藏画笔
pen.hideturtle()

# 关闭画布
canvas.exitonclick()

运行该程序，您将会看到一个动态的樱花树在您的屏幕上生长，并且随机分布的粉色樱花将在树的周围飘动。