C#检查两个ArrayList对象是否相等 _ArrayList对象是否相等

Equals(对象)方法继承自对象类别用于检查指定的ArrayList对象是否等于另一个ArrayList对象。
语法如下：

public virtual bool Equals (object obj);

这里, 对象是要与当前对象进行比较的对象。
返回值：此方法返回true如果指定对象等于当前对象, 否则, false.
下面的程序说明了上述方法的使用：
示例1：

//C# program to if a ArrayList //is equal to itself or not using System; using System.Collections; class Geeks {//Main Method public static void Main(String[] args) {//Creating a ArrayList ArrayList arrlist = new ArrayList(); //Adding elements to ArrayList arrlist.Add(1); arrlist.Add(2); arrlist.Add(3); arrlist.Add(4); arrlist.Add(5); //Checking whether arrlistis //equal to itself or not Console.WriteLine(arrlist.Equals(arrlist)); } }

输出如下：

True

示例2：equals方法仅检查两个ArrayList引用是否引用同一对象。如果两个对象不同, 即使它们具有相同的值, 它也会返回false。

//C# program to if a ArrayList //is equal to another ArrayList using System; using System.Collections; class Geeks {//Main Method public static void Main(String[] args) {//Creating a ArrayList ArrayList arrlist = new ArrayList(); //Adding elements to ArrayList arrlist.Add( "This" ); arrlist.Add( "is" ); arrlist.Add( "C#" ); arrlist.Add( "ArrayList" ); arrlist.Add( "Tutorial." ); //Creating an ArrayList ArrayList arrlist2 = new ArrayList(); //Adding elements to ArrayList arrlist2.Add( "This" ); arrlist2.Add( "is" ); arrlist2.Add( "C#" ); arrlist2.Add( "ArrayList" ); arrlist2.Add( "Tutorial." ); //Checking whether arrlist is //equal to arrlist2 or not Console.WriteLine(arrlist.Equals(arrlist2)); //Creating a ArrayList ArrayList arrlist3 = new ArrayList(); //Assigning arrlist2 to arrlist3 arrlist3 = arrlist2; //Checking whether arrlist3 is //equal to arrlist2 or not Console.WriteLine(arrlist3.Equals(arrlist2)); } }

输出如下：