C# SByte.CompareTo()用法及代码示例

SByte.CompareTo()方法用于将当前实例与指定的对象或SByte进行比较，并返回其相对值的指示。此方法的重载列表中有2种方法，如下所示：

CompareTo(SByte)方法
CompareTo(Object)方法

SByte.CompareTo(SByte) Method

此方法用于将当前实例与指定的8位带符号整数进行比较，并返回其相对值的指示。

用法:

public int CompareTo (sbyte value);

在这里，它需要一个8位有符号整数与当前实例进行比较。

返回值：它返回一个32位带符号的数字，指示当前实例和value参数的相对值，如下所示：

小于零：如果当前实例
零：如果当前实例=值
大于零：如果当前实例>值

以下示例程序旨在说明SByte.CompareTo(SByte)方法的用法：

示例1:

// C# program to demonstrate the 
// SByte.CompareTo(SByte) Method 
using System; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
  
        // Declaring and initializing value1 
        sbyte value1 = 10; 
  
        // Declaring and initializing value2 
        sbyte value2 = 20; 
  
        // compare both SByte value 
        // 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); 
    } 
}

输出：

10 is less than 20

示例2:

// C# program to demonstrate the 
// SByte.CompareTo(SByte) Method 
using System; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // calling get() method 
        get(5, 7); 
        get(30, 20); 
        get(10, 20); 
        get(7, -12); 
    } 
  
    // defining get() method 
    public static void get(sbyte value1, 
                           sbyte value2) 
    { 
  
        // 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); 
    } 
}

输出：

5 is less than 7
30 is greater than 20
10 is less than 20
7 is greater than -12

SByte.CompareTo(Object) Method

此方法用于将当前实例与指定对象进行比较，并返回其相对值的比较。

用法:

public int CompareTo (object value);

在这里，它需要对象与该实例进行比较，或者为null。

返回值：它返回一个32位带符号的数字，指示当前实例和value参数的相对值，如下所示：

小于零：如果当前实例
零：如果当前实例=值
大于零：如果当前实例>值

异常：如果value不是SByte，则抛出ArgumentException。

下面的程序说明Decimal.CompareTo(Object)方法的用法

示例1:

// C# program to demonstrate the 
// SByte.CompareTo(object) Method 
using System; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // Declaring and initializing value1 
            sbyte value1 = 10; 
  
            // Declaring and initializing value2 
            // explicit type casting the value 9 
            object value2 = (sbyte)9; 
  
            // compare both sbyte value 
            // 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 SByte"); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
}

输出：

10 is greater than 9

示例2:对于ArgumentException

// C# program to demonstrate the 
// SByte.CompareTo(object) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        try { 
  
            // Declaring and initializing value1 
            sbyte value1 = 10; 
  
            // Declaring and initializing value2 
            object value2 = 1 / 3; 
  
            // 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 sbyte"); 
            Console.Write("Exception Thrown: "); 
            Console.Write("{0}", e.GetType(), e.Message); 
        } 
    } 
}

输出：

value2 must be sbyte
Exception Thrown: System.ArgumentException

参考：

https://docs.microsoft.com/en-us/dotnet/api/system.sbyte.compareto?view=netcore-2.1

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 SByte.CompareTo() Method in C# with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。