效果图：

代码：

<code>import random

from math import sin, cos, pi, log

from tkinter import *

CANVAS_WIDTH = 640

CANVAS_HEIGHT = 480

CANVAS_CENTER_X = CANVAS_WIDTH / 2

CANVAS_CENTER_Y = CANVAS_HEIGHT / 2

IMAGE_ENLARGE = 11

# 设置颜色

HEART_COLOR = "#FF99CC"

def center_window(root, width, height):

screenwidth = root.winfo_screenwidth() # 获取显示屏宽度

screenheight = root.winfo_screenheight() # 获取显示屏高度

size = '%dx%d+%d+%d' % (width, height, (screenwidth - width) /

2, (screenheight - height) / 2) # 设置窗口居中参数

root.geometry(size) # 让窗口居中显示

def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):

x = 16 * (sin(t) ** 3)

y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))

# 放大

x *= shrink_ratio

y *= shrink_ratio

# 移到画布中央

x += CANVAS_CENTER_X

y += CANVAS_CENTER_Y

return int(x), int(y)

def scatter_inside(x, y, beta=0.15):

ratio_x = - beta * log(random.random())

ratio_y = - beta * log(random.random())

dx = ratio_x * (x - CANVAS_CENTER_X)

dy = ratio_y * (y - CANVAS_CENTER_Y)

return x - dx, y - dy

def shrink(x, y, ratio):

force = -1 / (((x - CANVAS_CENTER_X) ** 2 +

(y - CANVAS_CENTER_Y) ** 2) ** 0.6)

dx = ratio * force * (x - CANVAS_CENTER_X)

dy = ratio * force * (y - CANVAS_CENTER_Y)

return x - dx, y - dy

def curve(p):

return 2 * (2 * sin(4 * p)) / (2 * pi)

class Heart:

def __init__(self, generate_frame=20):

self._points = set() # 原始爱心坐标集合

self._edge_diffusion_points = set() # 边缘扩散效果点坐标集合

self._center_diffusion_points = set() # 中心扩散效果点坐标集合

self.all_points = { } # 每帧动态点坐标

self.build(2000)

self.random_halo = 1000

self.generate_frame = generate_frame

for frame in range(generate_frame):

self.calc(frame)

def build(self, number):

for _ in range(number):

t = random.uniform(0, 2 * pi)

x, y = heart_function(t)

self._points.add((x, y))

# 爱心内扩散

for _x, _y in list(self._points):

for _ in range(3):

x, y = scatter_inside(_x, _y, 0.05)

self._edge_diffusion_points.add((x, y))

# 爱心内再次扩散

point_list = list(self._points)

for _ in range(4000):

x, y = random.choice(point_list)

x, y = scatter_inside(x, y, 0.17)

self._center_diffusion_points.add((x, y))

@staticmethod

def calc_position(x, y, ratio):

force = 1 / (((x - CANVAS_CENTER_X) ** 2 +

(y - CANVAS_CENTER_Y) ** 2) ** 0.520)

dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)

dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)

return x - dx, y - dy

def calc(self, generate_frame):

ratio = 10 * curve(generate_frame / 10 * pi)

halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))

halo_number = int(

3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))

all_points = []

# 光环

heart_halo_point = set()

for _ in range(halo_number):

t = random.uniform(0, 2 * pi)

x, y = heart_function(t, shrink_ratio=11.6)

x, y = shrink(x, y, halo_radius)

if (x, y) not in heart_halo_point:

heart_halo_point.add((x, y))

x += random.randint(-14, 14)

y += random.randint(-14, 14)

size = random.choice((1, 2, 2))

all_points.append((x, y, size))

# 轮廓

for x, y in self._points:

x, y = self.calc_position(x, y, ratio)

size = random.randint(1, 3)

all_points.append((x, y, size))

# 内容

for x, y in self._edge_diffusion_points:

x, y = self.calc_position(x, y, ratio)

size = random.randint(1, 2)

all_points.append((x, y, size))

self.all_points[generate_frame] = all_points

for x, y in self._center_diffusion_points:

x, y = self.calc_position(x, y, ratio)

size = random.randint(1, 2)

all_points.append((x, y, size))

self.all_points[generate_frame] = all_points

def render(self, render_canvas, render_frame):

for x, y, size in self.all_points[render_frame % self.generate_frame]:

render_canvas.create_rectangle(

x, y, x + size, y + size, width=0, fill=HEART_COLOR)

def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):

render_canvas.delete('all')

render_heart.render(render_canvas, render_frame)

main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)

if __name__ == '__main__':

root = Tk()

root.title("爱心")

center_window(root, CANVAS_WIDTH, CANVAS_HEIGHT) # 窗口居中显示

canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)code>

canvas.pack()

heart = Heart()

draw(root, canvas, heart)

Label(root, text="I love you", bg="black", fg="#FF99CC", font="Helvetic 20 bold").place(code>

relx=.5, rely=.5, anchor=CENTER)

root.mainloop()