import turtle
import time
import random

# 窗口设置
turtle.setup(800, 700)
turtle.bgcolor("black")

# 画笔
pen = turtle.Turtle()
pen.speed(0)
pen.color("red")
pen.pensize(2)

# 爱心函数
def heart(x, y, size):
    pen.up()
    pen.goto(x, y)
    pen.down()
    pen.begin_fill()

    pen.left(140)
    pen.forward(size)

    for _ in range(200):
        pen.right(1)
        pen.forward(size * 0.017)

    pen.left(120)

    for _ in range(200):
        pen.right(1)
        pen.forward(size * 0.017)

    pen.forward(size)
    pen.end_fill()

# 写字
def text():
    pen.up()
    pen.goto(0, -250)
    pen.color("pink")
    pen.write(
        "I Love You",
        align="center",
        font=("Arial", 28, "bold")
    )

# 动态效果
for i in range(20):
    x = random.randint(-200, 200)
    y = random.randint(-150, 150)
    size = random.randint(20, 60)

    pen.color(
        random.choice(["red", "pink", "hotpink"])
    )

    heart(x, y, size)

text()

turtle.done()