為了 Java 所做的 list class, 方便你做"新增","刪除","尋找"等功能. 可以說是一個動態陣列的物件.-It is very important to add, delete, find objects in the list but Javascr ipt array does not contain any of them. We need to create an advanced list that works with all objects. In .NET platform, there is "Generic List" class that can do the same. My function is like that one. We can say its name: an Array with dynamic size.