C# | SortedDictionary。计数属性
原文:https://www . geeksforgeeks . org/c-sharp-sorted dictionary-count-property/
此属性用于获取包含在排序字典< TKey、TVaLue>T1 中的键/值对的数量。
语法:
public int Count { get; }
返回值:返回 SortedDictionary 中包含的键/值对的个数。
以下是说明上述属性使用的程序:
例 1:
// C# code to count the number of
// key/value pairs in SortedDictionary
using System;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Create a new SortedDictionary of
// int, with int keys.
SortedDictionary<int, int> myDict =
new SortedDictionary<int, int>();
// Adding key/value pairs in myDict
myDict.Add(9, 8);
myDict.Add(3, 4);
myDict.Add(4, 7);
myDict.Add(1, 7);
// To get count of key/value pairs in myDict
Console.WriteLine("Total key/value pairs "
+ "in myDict are : " + myDict.Count);
}
}
Output:
Total key/value pairs in myDict are : 4
例 2:
// C# code to count the number of
// key/value pairs in SortedDictionary
using System;
using System.Collections.Generic;
class GFG {
// Driver code
public static void Main()
{
// Create a new dictionary of
// strings, with string keys.
SortedDictionary<string, string> myDict =
new SortedDictionary<string, string>();
// Adding key/value pairs in myDict
myDict.Add("Australia", "Canberra");
myDict.Add("Belgium", "Brussels");
myDict.Add("Netherlands", "Amsterdam");
myDict.Add("China", "Beijing");
myDict.Add("Russia", "Moscow");
myDict.Add("India", "New Delhi");
// To get count of key/value pairs in myDict
Console.WriteLine("Total key/value pairs "
+ "in myDict are : " + myDict.Count);
}
}
Output:
Total key/value pairs in myDict are : 6
参考:
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