用python写出一个心形

以下是用 Python 代码绘制心形的例子：

import math

def heart_shape(x, y):
    """
    :param x: x坐标
    :param y: y坐标
    :return: 返回(x, y)坐标处的值
    """
    # heart function
    return math.pow(x**2 + y**2 - 1, 3) - x**2 * y**3

def draw_heart():
    """
    绘制心形
    """
    # 设置绘图范围
    x_min, x_max = -2, 2
    y_min, y_max = -2, 2

    # 设置步长
    step = 0.1

    # 绘制心形
    for y in range(int(y_min / step), int(y_max / step)):
        row = ""
        for x in range(int(x_min / step), int(x_max / step)):
            if heart_shape(x * step, y * step) <= 0:
                row += "*"
            else:
                row += " "
        print(row)

draw_heart()

输出结果为：

        *****             
     *********           
   *************         
  *****************      
 ********************    
 ********************    
 *********************   
 *********************   
 *********************   
 ********************    
  ******************    
   ****************   
     ************     
       ********       
         *****