1.Indexers do not have to be indexed by an integer value; it is up to you how to define the specific look-up mechanism.
索引器不必根据整数值进行索引，由您决定如何定义特定的查找机制。
2.Indexers permit a default property on a type to be indexed as if the type were an array.
索引器允许对某个类型上的默认属性进行索引，就像该类型是数组一样。
3.Indicates the name by which an indexer is known in programming languages that do not support indexers directly.
指示使索引器在不直接支持索引器的编程语言中已知的名称。
4.The implementation of an index property should be as simple as possible because indexers are often used in loops.
索引属性的实现应尽可能简单，因为索引器经常在循环中使用。
5.Properties and indexers of a class can define extra accessors for a property or indexer defined on an interface.
属性和索引器的类可以定义额外的属性或索引器在接口上定义的访问器。
6.Fields cannot be virtual; only methods, properties, events and indexers can be virtual.
字段不能是虚拟的，只有方法、属性、事件和索引器才可以是虚拟的。
7.Interfaces can be made up of methods, properties, events, indexers, or any combination of those four member types.
接口可由方法、属性、事件、索引器或这四种成员类型的任何组合构成。
8.Access to fields by external classes should be indirect, by means of methods, properties, or indexers.
外部类应当通过方法、属性或索引器来间接访问字段。
9.Properties or indexers can only use generic type parameters defined at the scope of the class.
属性或索引器只能使用在类的作用范围中定义的一般类型参数。
10.Accessor methods of indexers take parameters, while property accessor methods do not.
访问器方法带有参数，而属性访问器方法不带参数。