Represents a collection of key value pairs that are sorted by the keys and are accessible by key and by index 表示键/值对的集合，这些键值对按键排序并可按照键和索引访问。
This property is an idictionary that can hold arbitrary data in key - value pairs . most of the classes that inherit from 此属性是可以保存任意数据（以键值对的形式）的idictionary 。
Object supports connection string key value pairs that can be used to adjust the behavior of the connection pooling logic 属性支持连接字符串键值对，可以用于调整连接池逻辑的行为。
Provides a basic , component site - specific , key - value pair dictionary through a service that a designer can use to store user - defined data 在设计器可用来存储用户定义数据的服务中提供基本的、组件站点特定的键值对字典。
The clustered index is implemented as a b - tree index structure that supports fast retrieval of the rows , based on their clustered index key values 聚集索引按b树索引结构实现， b树索引结构支持基于聚集索引键值对行进行快速检索。
Is thrown when an attempt is made to retrieve a key or key value pair from a collection using a nonexistent key 关于异常的疑难解答： system . collections . generic . keynotfoundexception当试图使用不存在的键从集合中检索键或键值对时，会引发
Classes perform comparisons in almost all the processes involved in managing collections , whether searching for the element to remove or returning the value of a key - and - value pair 类在涉及管理集合的几乎所有进程中执行比较，无论是搜索要移除的元素还是返回键值对的值。
