IENumerable，IList，ICollection之间有什么不同 [英] what is diffrent between IENumerable,IList,ICollection

问题描述

hi


什么是IENumerable，IList，ICollection或IENumerable< t>，IList< t>，ICollection< t> ？



IENumerable，IList，ICollection或IENumerable< t>，IList< t>，ICollection< t>？

之间的差异

我何时何地可以使用IENumerable或IList或ICollection或IENumerable< t>，IList< t>，ICollection< t>？



我如何使用IENumerable或IList或ICollection或IENumerable< t>，IList< t>，ICollection< t>？



请完整解释



储罐

hi
what is IENumerable,IList,ICollection or IENumerable<t>,IList<t>,ICollection<t> ?

what is diffrent between IENumerable,IList,ICollection or IENumerable<t>,IList<t>,ICollection<t>?

when and where can i use IENumerable or IList or ICollection or IENumerable<t>,IList<t>,ICollection<t>?

How can i use IENumerable or IList or ICollection or IENumerable<t>,IList<t>,ICollection<t>?

Please fully explain

tanks

推荐答案

请参阅以下链接。它很好地解释了每个提到的集合。



何时使用IEnumerable，ICollection，IList和List [ ^ ]





谢谢

Please see the below link. It explained each of the mentioned collection very well.

When to use IEnumerable, ICollection, IList and List[^]


Thanks

请记住，所有这些I ---实体都是接口，您可以将其视为抽象模式...蓝图，如果您愿意......和一个契约，一组对从它们继承的对象的要求：承诺实现某些功能。



所以，一个List< SomeType>是一个IList的化身，因此，它提供了一套特定的设施，比如索引，它是可枚举的...你可以用'foreach等遍历它。事实上，IList继承自IEnumerable和ICollection。所以，List< SomeType>提供了所有三个接口的功能。



有一篇很好的CodeProject文章，IEnumerable，ICollection，IList和IDictionary之间的区别，总结了这些接口，以及它们的实现是：[ ^ ]。



这里有一些很好的讨论：[ ^ ]。

Keep in mind that all these I--- entities are Interfaces, which you can think of as both an abstract schema ... a blue-print, if you will ... and a "contract," a set of requirements for objects that inherit from them: a promise to implement certain functionality.

So, a List<SomeType> is an "incarnation" of an IList, and, so, it provides a certain set of facilities, like indexing, it is enumerable ... you can "traverse" it with 'foreach, etc. In fact, IList inherits from both IEnumerable, and ICollection. So, a List<SomeType> provides the functionality of all three Interfaces.

There is a good CodeProject article, "Difference between IEnumerable, ICollection, IList, and IDictionary," summarizing what these Interfaces, and their implementations, are: [^].

There are some excellent discussions of this here: [^].

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