# 繪制丘比特愛心之箭  ``` from turtle import * title('沂牛教育@喜愛少兒編程') speed(0) def go_to(x, y): up() goto(x, y) down() def big_Circle(size): #函數用于繪制心的大圓 speed(0) for i in range(150): forward(size) right(0.3) def small_Circle(size): #函數用于繪制心的小圓 speed(0) for i in range(210): forward(size) right(0.786) def line(size): speed(0) forward(51 * size) def heart(x, y, size): go_to(x, y) 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 arrow(): pensize(10) setheading(0) go_to(-400, 0) left(15) forward(150) go_to(339, 178) forward(150) def arrowHead(): pensize(1) speed(0) color('red', 'red') begin_fill() left(120) forward(20) right(150) forward(35) right(120) forward(35) right(150) forward(20) end_fill() def main(): pensize(2) color('red', 'pink')# getscreen().tracer(30, 0)# 取消注釋后， 快速顯示圖案 heart(200, 0, 1)# 畫出第一顆心， 前面兩個參數控制心的位置， 函數最后一個參數可控制心的大小 setheading(0)# 使畫筆的方向朝向x軸正方向 heart(-80, -100, 1.5)# 畫出第二顆心 arrow()# 畫出穿過兩顆心的直線 arrowHead()# 畫出箭的箭頭 go_to(400, -300) done() if __name__ == '__main__': main() ```