C＃|创建一个具有指定大小写敏感性的空HybridDictionary

HybridDictionary(Boolean)构造函数创建一个空的HybridDictionary，具有指定的区分大小写。

句法：

public HybridDictionary (bool caseInsensitive);

在这里， caseInsensitive是一个布尔值，指示HybridDictionary是否不区分大小写。

下面给出了一些示例，以更好地理解实现：

范例1：

// C# code to create an empty
// HybridDictionary with the
// specified case sensitivity.
using System;
using System.Collections;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver code
    public static void Main()
    {
  
        // Creating an empty HybridDictionary
        // with the specified case sensitivity.
        HybridDictionary myDict = new HybridDictionary(false);
  
        // Adding key/value pairs in myDict
        myDict.Add("I", "first");
        myDict.Add("i", "first");
        myDict.Add("II", "second");
        myDict.Add("III", "third");
        myDict.Add("IV", "fourth");
        myDict.Add("V", "fifth");
  
        // Displaying the key/value pairs in myDict
        foreach(DictionaryEntry de in myDict)
            Console.WriteLine(de.Key + " " + de.Value);
    }
}

输出：

I first
i first
II second
III third
IV fourth
V fifth

范例2：

// C# code to create an empty
// HybridDictionary with the
// specified case sensitivity.
using System;
using System.Collections;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver code
    public static void Main()
    {
  
        // Creating an empty HybridDictionary
        // with the specified case sensitivity.
        HybridDictionary myDict = new HybridDictionary(true);
  
        // Adding key/value pairs in myDict
        myDict.Add("A", "Apple");
        myDict.Add("a", "Air");
        myDict.Add("B", "Banana");
        myDict.Add("C", "Cat");
        myDict.Add("D", "Dog");
        myDict.Add("d", "Dolphine");
        myDict.Add("E", "Elephant");
        myDict.Add("F", "Fish");
  
        // Displaying the key/value pairs in myDict
        foreach(DictionaryEntry de in myDict)
            Console.WriteLine(de.Key + " " + de.Value);
    }
}

运行时错误：

Unhandled Exception:
System.ArgumentException: An entry with the same key already exists.
at System.Collections.Specialized.ListDictionary.Add

注意：此构造函数是O(1)操作。