C＃| Convert.GetTypeCode(Object)方法

此方法用于返回指定对象的TypeCode。

句法：

public static TypeCode GetTypeCode (object value);

在此，该值是实现IConvertible接口的对象。

返回值：此方法返回value的TypeCode ；如果value为null ，则返回Empty 。

下面的程序说明了Convert.GetTypeCode(Object)方法的用法：

范例1：

// C# program to demonstrate
// Convert.GetTypeCode() Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // Declaring val1 and val2
        string val1;
        bool val2;
  
        // intializing the
        // val1 and val2
        val1 = "abab";
        val2 = true;
  
        // getting TypeCode
        // using Convert.GetTypeCode() method
        TypeCode t1 = Convert.GetTypeCode(val1);
        TypeCode t2 = Convert.GetTypeCode(val2);
  
        // Display TypeCode
        Console.WriteLine("TypeCode of val1 is {0}", t1);
        Console.WriteLine("TypeCode of val2 is {0}", t2);
    }
}

输出：

TypeCode of val1 is String
TypeCode of val2 is Boolean

范例2：

// C# program to demonstrate
// Convert.GetTypeCode() Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // Declaring val1 and val2
        char val1;
        float val2;
  
        // intializing the
        // val1 and val2
        val1 = 'a';
        val2 = 20f;
  
        // calling get() method
        get(val1);
        get(val2);
    }
  
    // Defining the get() method
    public static void get(char val)
    {
  
        // getting TypeCode
        // using Convert.GetTypeCode() method
        TypeCode t = Convert.GetTypeCode(val);
  
        // Display the TypeCode
        Console.WriteLine("TypeCode of {0}"+
                         " is {1}", val, t);
    }
    public static void get(float val)
    {
  
        // getting TypeCode
        // using GetTypeCode() method
        TypeCode t = Convert.GetTypeCode(val);
  
        // Display the TypeCode
        Console.WriteLine("TypeCode of {0}"+
                         " is {1}", val, t);
    }
}

输出：

TypeCode of a is Char
TypeCode of 20 is Single

参考：

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