Simple add() method is used for adding an element at the end of the list however there is another variant of add method which is used for adding an element to the specified index. public void add(int index, Object element) This method adds the elemen…
学习如何使用索引器,索引器的使用是public 类型 this[int index]{get{};set{}} ,访问通过类的实例(对象)加[i], 例如animal[i],就像访问数组一样,其实就是类的数组访问的使用书写. 使用详情请看msdn. 例子如下: class IndexerClass { ]; public int this[int index] // Indexer declaration { get { // Check the index limits. || index >…