C# |检查两个有序字典对象是否相等
原文:https://www . geesforgeks . org/c-sharp-check-if-two-ordered dictionary-objects-equal/
等于(对象)方法继承自对象类，用于检查指定的有序字典对象是否等于另一个有序字典对象。
语法:
public virtual bool Equals (object obj);
这里， 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，则该方法返回真，否则返回假。
以下程序说明了上述方法的使用:
例 1:
// C# code to check whether two
// OrderedDictionary objects
// are equal or not
using System;
using System.Collections.Specialized;
class GFG {
// Driver method
public static void Main()
{
// Creating a orderedDictionary named myDict
OrderedDictionary myDict = new OrderedDictionary();
// 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
例 2:
// C# code to check whether two
// OrderedDictionary objects
// are equal or not
using System;
using System.Collections.Specialized;
class GFG {
// Driver method
public static void Main()
{
// Creating a OrderedDictionary named myDict
OrderedDictionary myDict1 = new OrderedDictionary();
// 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 OrderedDictionary named myDict2
OrderedDictionary myDict2 = new OrderedDictionary();
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 OrderedDictionary
OrderedDictionary myDict3 = new OrderedDictionary();
// 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， Equals(对象)方法检查引用是否相等。
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