angularjs購物車加減

Ⅰ 如何用angularjs實現拋物線購物車效果

、使用任何語言創建一個服務端：
public class ShoppingCar
{
public string Title { get; set; }
public decimal UnitPrice { get; set; }
public int Count { get; set; }
}

public ActionResult GetCar()
{
List<ShoppingCar> cars = new List<ShoppingCar>
{
new ShoppingCar { Title="蘋果",Count=1,UnitPrice=2.5m},
new ShoppingCar { Title="香蕉",Count=3,UnitPrice=1.5m},
new ShoppingCar { Title="苦瓜",Count=1,UnitPrice=3.5m},
new ShoppingCar { Title="黃瓜",Count=3,UnitPrice=2.2m}
};
return Json(cars,JsonRequestBehavior.AllowGet);
}