C# |类型。GetEnumUnderlyingType()方法
原文:https://www . geeksforgeeks . org/c-sharp-type-getenumnderlyingtype-method/
类型。GetEnumUnderlyingType()方法用于返回当前枚举类型的底层类型。
语法:
public virtual Type GetEnumUnderlyingType ();
返回值:此方法返回当前枚举的基础类型。
异常:如果当前类型不是枚举或枚举类型无效(由于包含多个实例字段)，该方法将返回参数异常。
以下程序说明了上述方法的使用:
例 1:
c
// C# program to demonstrate the
// Type.GetEnumUnderlyingType() Method
using System;
using System.Globalization;
using System.Reflection;
class GFG {
// Defining enum ABC
enum ABC { A,
B,
C,
D,
E,
F }
// Main Method
public static void Main()
{
// try-catch block to
// handle exceptions
try {
// Creating and initializing object
// of ABC with instance of enum ABC
ABC a = ABC.A;
// Declaring and initializing
// object of Type
Type type = a.GetType();
// Getting underlying type of current enumeration
// By using GetEnumUnderlyingType() method
Type obj = type.GetEnumUnderlyingType();
// Display underlying type
Console.Write("Underlying type is : {0} ", obj);
}
// ArgumentException here
catch (ArgumentException e)
{
Console.Write("The current type is not an enumeration.");
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出:
Underlying type is : System.Int32
例 2: 为ArgumentException
c
// C# program to demonstrate the
// Type.GetEnumUnderlyingType() Method
using System;
using System.Globalization;
using System.Reflection;
class GFG {
// Defining enum ABC
enum ABC { A,
B,
C,
D,
E,
F }
// Main Method
public static void Main()
{
// try-catch block to
// handle exceptions
try {
// Declaring and initializing
// object of Type
Type type = typeof(int);
// Getting underlying type of current enumeration
// By using GetEnumUnderlyingType() method
Type obj = type.GetEnumUnderlyingType();
// Display underlying type
Console.Write("underlying type is : {0} ", obj);
}
// catch ArgumentException here
catch (ArgumentException e)
{
Console.WriteLine("The current type is not an enumeration.");
Console.Write("Exception Thrown: ");
Console.Write("{0}", e.GetType(), e.Message);
}
}
}
输出:
The current type is not an enumeration.
Exception Thrown: System.ArgumentException
参考:
版权属于：月萌API www.moonapi.com，转载请注明出处
