如何在 C# 中创建字符串集合
原文:https://www . geesforgeks . org/how-create-a-string collection-in-c-sharp/
StringCollection()构造函数用于初始化 StringCollection 类的新实例。 StringCollection 类是的新增成员。NET 表示字符串集合的框架类库。在系统中定义了 StringCollection 类。集合。专用命名空间。
语法:
public StringCollection ();
例 1:
// C# Program to illustrate how
// to create a StringCollection
using System;
using System.Collections;
using System.Collections.Specialized;
class Geeks {
// Main Method
public static void Main(String[] args)
{
// sc is the StringCollection object
// StringCollection() is the constructor
// used to initializes a new
// instance of the StringCollection class
StringCollection sc = new StringCollection();
// Count property is used to get the
// number of elements in StringCollection
// It will give 0 as no elements
// are present currently
Console.WriteLine("Number of elements: "+
sc.Count);
}
}
Output:
Number of elements: 0
例 2:
// C# Program to illustrate how
// to create a StringCollection
using System;
using System.Collections;
using System.Collections.Specialized;
class Geeks {
// Main Method
public static void Main(String[] args)
{
// sc is the StringCollection object
// StringCollection() is the constructor
// used to initializes a new
// instance of the StringCollection class
StringCollection sc = new StringCollection();
Console.Write("Before Add Method: ");
// Count property is used to get the
// number of elements in StringCollection
// It will give 0 as no elements
// are present currently
Console.WriteLine(sc.Count);
Console.Write("After Add Method: ");
// Adding elements in StringCollection
sc.Add("A");
sc.Add("B");
sc.Add("C");
sc.Add("D");
sc.Add("E");
// Count property is used to get the
// number of elements in ld
Console.WriteLine(sc.Count);
}
}
Output:
Before Add Method: 0
After Add Method: 5
参考:
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