📜  C#| Byte.CompareTo(Object)方法

📅  最后修改于: 2021-05-29 23:41:49             🧑  作者: Mango

此方法用于将当前实例与指定对象进行比较,并返回其相对值的符号。无论值如何,Byte的任何实例都将被视为大于null。

句法:

public int CompareTo (object value);

在这里,它需要一个对象进行比较,或者为null。

返回值:返回一个带符号的整数,指示当前实例和value参数的相对顺序,如下所示:

  • 小于零:如果当前实例<值
  • 零:如果当前实例=值
  • 大于零:如果当前实例> valuevalue为null。

异常:如果value不是Byte,则抛出ArgumentException。

下面的程序说明了Byte.CompareTo(Object)方法的用法

范例1:

// C# program to demonstrate the
// Byte.CompareTo(object) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            byte value1 = 10;
  
            // Declaring and initializing value2
            // converting to byte using explicit
            // type casting
            object value2 = (byte)87;
  
            // using CompareTo() method
            int status = value1.CompareTo(value2);
  
            // checking the status
            if (status > 0)
                Console.WriteLine("{0} is greater than {1}",
                                            value1, value2);
  
            else if (status < 0)
                Console.WriteLine("{0} is less than {1}",
                                         value1, value2);
            else
                Console.WriteLine("{0} is equal to {1}",
                                        value1, value2);
        }
  
        catch (ArgumentException e) 
        {
            Console.WriteLine("value2 must be Byte");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
输出:
10 is less than 87

示例2:对于ArgumentException

// C# program to demonstrate the
// Byte.CompareTo(object) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            byte value1 = 10;
  
            // Declaring and initializing value2
            object value2 = (long)569874514;
  
            // using CompareTo() method
            int status = value1.CompareTo(value2);
  
            // checking the status
            if (status > 0)
                Console.WriteLine("{0} is greater than {1}",
                                            value1, value2);
  
            else if (status < 0)
                Console.WriteLine("{0} is less than {1}",
                                         value1, value2);
            else
                Console.WriteLine("{0} is equal to {1}",
                                        value1, value2);
        }
  
        catch (ArgumentException e) 
        {
            Console.WriteLine("value2 must be Byte");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
输出:
value2 must be Byte
Exception Thrown: System.ArgumentException

参考:

  • https://docs.microsoft.com/zh-cn/dotnet/api/system.byte.compareto?view=netframework-4.7.2#System_Byte_CompareTo_System_Object_