C＃中的Int32.Equals方法与示例

Int32.Equals()方法用于获取一个值，该值指示当前实例是否等于指定的对象或Int32。此方法的重载列表中有两种方法，如下所示：

• Equals(Int32)方法
• 等于(对象)方法

Int32.Equals(Int32)

此方法用于返回一个值，该值指示当前实例是否等于指定的Int32值。

Syntax: public bool Equals (int obj);
Here, it takes a Int32 value to compare to this instance.

Return Value: This method returns true if obj has the same value as this instance otherwise, false.

下面的程序说明了Int32.Equals(Int32)方法的用法：

范例1：

// C# program to demonstrate the
// Int32.Equals(Int32) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // Declaring and initializing value1
        int value1 = 4562;
  
        // Declaring and initializing value2
        int value2 = 2563;
  
        // using Equals(Int32) method
        bool status = value1.Equals(value2);
  
        // checking the status
        if (status)
            Console.WriteLine("{0} is equal to {1}",
                                    value1, value2);
        else
            Console.WriteLine("{0} is not equal to {1}",
                                        value1, value2);
    }
}

输出：

4562 is not equal to 2563

范例2：

// C# program to demonstrate the
// Int32.Equals(Int32) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // calling get() method
        get(455, 578);
        get(445, 445);
        get(10, 20);
        get(Int32.MaxValue, Int32.MinValue);
    }
  
    // defining get() method
    public static void get(int value1, int value2)
    {
  
        // using Equals(Int32) method
        bool status = value1.Equals(value2);
  
        // checking the status
        if (status)
            Console.WriteLine("{0} is equal to {1}",
                                    value1, value2);
        else
            Console.WriteLine("{0} is not equal to {1}",
                                        value1, value2);
    }
}

输出：

455 is not equal to 578
445 is equal to 445
10 is not equal to 20
2147483647 is not equal to -2147483648

Int32.Equals(Object)方法

此方法用于返回一个值，该值指示当前实例是否等于指定的对象。

Syntax: public override bool Equals (object obj);
Here, it takes an object to compare with this instance.

Return Value: This method returns true if obj is an instance of Int32 and equals the value of this instance otherwise, false.

下面的程序说明了上述方法的用法：

范例1：

// C# program to demonstrate the
// Int32.Equals(Object) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // Declaring and initializing value1
        int value1 = 10;
  
        // Declaring and initializing value2
        object value2 = 1 / 45;
  
        // using Equals(object) method
        bool status = value1.Equals(value2);
  
        // checking the status
        if (status)
            Console.WriteLine("{0} is equal to {1}",
                                    value1, value2);
        else
            Console.WriteLine("{0} is not equal to {1}",
                                        value1, value2);
    }
}

输出：

10 is not equal to 0

范例2：

// C# program to demonstrate the
// Int32.Equals(Object) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // calling get() method
        get(547, 585);
        get(555, 489);
        get(100, 100);
        get(745, 725);
    }
  
    // defining get() method
    public static void get(int value1, 
                        object value2)
    {
  
        // compare both Int32 value
        // using Equals(object) method
        bool status = value1.Equals(value2);
  
        // checking the status
        if (status)
            Console.WriteLine("{0} is equal to {1}",
                                    value1, value2);
        else
            Console.WriteLine("{0} is not equal to {1}",
                                        value1, value2);
    }
}

输出：

547 is not equal to 585
555 is not equal to 489
100 is equal to 100
745 is not equal to 725

参考：

• https://docs.microsoft.com/zh-cn/dotnet/api/system.int32.equals?view=netframework-4.7.2