Dictionary<TKey,TValue>.KeyCollection.Count 属性

定义

命名空间:
System.Collections.Generic
程序集:
System.Collections.dll
程序集:
mscorlib.dll, System.Collections.dll
程序集:
mscorlib.dll
程序集:
netstandard.dll

获取 Dictionary<TKey,TValue>.KeyCollection 中包含的元素数。Gets the number of elements contained in the Dictionary<TKey,TValue>.KeyCollection.

public:
 property int Count { int get(); };
public int Count { get; }
member this.Count : int
Public ReadOnly Property Count As Integer

属性值

Int32

Dictionary<TKey,TValue>.KeyCollection 中包含的元素数。The number of elements contained in the Dictionary<TKey,TValue>.KeyCollection.

检索此属性的值的运算复杂度为 O(1)。Retrieving the value of this property is an O(1) operation.

实现

Count Count Count

适用于