520，千寻教你用Python与Java代码来表白！

from turtle import *

def heart(x, y, size):
    go_to(x, y)
    speed(50)
    left(150)
    begin_fill()
    line(size)
    big_Circle(size)
    small_Circle(size)
    left(120)
    small_Circle(size)
    big_Circle(size)
    line(size)
    end_fill()

def main():
    pensize(3)
    color('red', 'pink')
    heart(250, -80, 1)
    go_to(100, -150)
    write("To: 智慧与美貌并存的你", move=True, align="left", font=("楷体", 20, "normal"))
    done()

import java.awt.*;

import javax.swing.JFrame;

public Cardioid(){
        super(" 520, I love you");//设置窗口标题
        this.setBackground(Color.black);
        this.setLocation((WINDOW_WIDTH-WIDTH)/2,(WINDOW_HEIGHT-HEIGHT)/2);//设置窗口位置
        this.setSize(WIDTH, HEIGHT);//设置窗口大小
        this.setLayout(getLayout());//设置窗口布局
        this.setVisible(true);//设置窗口可见
        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);//设置窗口默认关闭方式
    }

public void paint(Graphics g){
        double x,y,r;//横纵坐标以及半径
        Image image = this.createImage(WIDTH, HEIGHT);
        Graphics pic = image.getGraphics();
        for (int i = -2; i < 90; i++) {
            for (int j = -2; j < 90; j++) {
                r=Math.PI/45+Math.PI/45*i*(1-Math.sin(Math.PI/45*j))*18;
                x=r*Math.cos(Math.PI/45*j)*Math.sin(Math.PI/45*i)+WIDTH/2;
                y=-r*Math.sin(Math.PI/45*j)+HEIGHT/3;
                pic.setColor(Color.red);
                pic.fillOval((int)x, (int)y, 3, 3);
            }
            g.drawImage(image,0,0,this);//生成图片
        }
    }

public static void main(String[] args) {
        new Cardioid();
    }