homework3－Car
# Class name
- Car
# 作業說明
讓我們繼續控制車車吧！
# 輸入
- 新增車車：new [車名] [x 座標] [y座標]
- 移動車車：[方向（east, west, south, north）] [車名] [移動單位]
- 消滅車車：destroy [車名]
- 結束程式：end
# 輸出
- 每台車的位置：[車名] [x 座標] [y 座標]
- 兩兩車間的直線距離：[車名1] [車名2] [距離]
# 輸入範例
new Toyota -10 -20
east Toyota 16
north Toyota 17
new Lotus 3 7
new Nissan 5 -5
west Nissan 7
south Nissan 4
east Lotus 5
new Lexus 18 4
west Lexus 20
south Lexus 7
destroy Lotus
end
# 輸出範例
Toyota 6 -3
Nissan -2 -9
Lexus -2 -3
Toyota to Nissan 10.0
Toyota to Lexus 8.0
Nissan to Lexus 6.0
