indexers

The array indexing operator cannot be overloaded, but you can define indexers.

不能重载数组索引运算符, 但可定义索引器.

Indexers enable an object to be indexed in a manner similar to arrays.

使用索引器可以用类似于数组的方式为对象建立索引.

You can create placeholders for anything in an interface: methods, properties, indexers, and events.

你可以为接口里面的任何东西创建占位符: 方法, 属性, 索引器, 事件.

Indexers resemble properties except that their accessors take parameters.

索引器类似于属性,不同之处在于它们的访问器采用参数.