📜  C#|检查两个StringDictionary对象是否相等

📅  最后修改于: 2021-05-29 14:17:24             🧑  作者: Mango

从Object类继承的Equals(Object)方法用于检查指定的StringDictionary对象是否等于另一个StringDictionary对象。

句法:

public virtual bool Equals (object obj);

此处, obj是要与当前对象进行比较的对象。

返回值:如果指定对象等于当前对象,则此方法返回true ,否则返回false

下面的程序说明了上面讨论的方法的使用:

范例1:

// C# code to check whether two
// StringDictionary objects
// are equal or not
using System;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver method
    public static void Main()
    {
  
        // Creating a StringDictionary named myDict
        StringDictionary myDict = new StringDictionary();
  
        // Adding key and value in myDict
        myDict.Add("1", "C");
        myDict.Add("2", "C++");
        myDict.Add("3", "Java");
        myDict.Add("4", "C#");
  
        // Checking whether myDict is
        // equal to itself or not
        Console.WriteLine(myDict.Equals(myDict));
    }
}
输出:
True

范例2:

// C# code to check whether two
// StringDictionary objects
// are equal or not
using System;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver method
    public static void Main()
    {
  
        // Creating a StringDictionary named myDict
        StringDictionary myDict1 = new StringDictionary();
  
        // Adding key/value pairs in myDict
        myDict1.Add("I", "first");
        myDict1.Add("II", "second");
        myDict1.Add("III", "third");
        myDict1.Add("IV", "fourth");
        myDict1.Add("V", "fifth");
  
        // Creating a StringDictionary named myDict2
        StringDictionary myDict2 = new StringDictionary();
  
        myDict2.Add("Australia", "Canberra");
        myDict2.Add("Belgium", "Brussels");
        myDict2.Add("Netherlands", "Amsterdam");
        myDict2.Add("China", "Beijing");
        myDict2.Add("Russia", "Moscow");
        myDict2.Add("India", "New Delhi");
  
        // Checking whether myDict1 is
        // equal to myDict2 or not
        Console.WriteLine(myDict1.Equals(myDict2));
  
        // Creating a new StringDictionary
        StringDictionary myDict3 = new StringDictionary();
  
        // Assigning myDict2 to myDict3
        myDict3 = myDict2;
  
        // Checking whether myDict3 is
        // equal to myDict2 or not
        Console.WriteLine(myDict3.Equals(myDict2));
    }
}
输出:
False
True

注意:如果当前实例是引用类型,则Equals(Object)方法将检查引用是否相等。