c#枚举数字转枚举_C＃中的枚举（枚举）

深藏阁楼爱情的钟 2023-03-05 11:58 5阅读 0赞

c\#枚举数字转枚举

**enum** stands for **enumeration**, it is a set of named integer constants, their default integer values start with 0, we can also set any other sequence of the values.

**enum**代表**枚举** ，它是一组命名的整数常量，它们的默认整数值以0开头，我们还可以设置任何其他序列的值。

An **enum** is defined by using the enum keyword.

**枚举**是使用enum关键字定义的。

**Syntax:**

**句法：**

enum enum_name {enumeration_list };

**Example 1:**

**范例1：**

Here, we are defining an **enum** named colors with the three constants RED, GREEN and BLUE, we are not initializing them with any value. Thus, constant will have values **0**, **1** and **2**.

在这里，我们使用三个常量RED ， GREEN和BLUE定义了一个名为colors的**枚举** ，我们没有使用任何值对其进行初始化。 因此，常数将具有值**0，1**和**2。**

using System;
    using System.Text;
    
    namespace Test
    {
        
        class Program
        {
        
            //declaring enum
            enum colors {
         RED, GREEN, BLUE };
            static void Main(string[] args)
            {
                    
                //printing values
                Console.WriteLine("Red: {0}", (int)colors.RED);
                Console.WriteLine("Green: {0}", (int)colors.GREEN);
                Console.WriteLine("Blue: {0}", (int)colors.BLUE);
    			
                //hit ENTER to exit
                Console.ReadLine();
            }
        }
    }

**Output**

**输出量**

Red: 0
    Green: 1
    Blue: 2

**Example 2:**

**范例2：**

Here, we are defining an **enum** named colors with the three constants RED, GREEN and BLUE, we are initializing RED with **10**, GREEN with **20** and BLUE is not getting initialized with any value, so it will take **21**. Thus, constant will have values **10**, **20** and **21**.

在这里，我们用三个常量RED ， GREEN和BLUE定义了一个名为colors的**枚举** ，我们用**10**初始化RED ，用**20**初始化GREEN ，并且BLUE没有初始化任何值，所以它将花费**21** 。 因此，常数将具有值**10，20**和**21。**

using System;
    using System.Text;
    
    namespace Test
    {
        
        class Program
        {
        
            //declaring enum
            enum colors {
         RED = 10, GREEN = 20, BLUE };
            static void Main(string[] args)
            {
                    
                //printing values
                Console.WriteLine("Red: {0}", (int)colors.RED);
                Console.WriteLine("Green: {0}", (int)colors.GREEN);
                Console.WriteLine("Blue: {0}", (int)colors.BLUE);
    			
                //hit ENTER to exit
                Console.ReadLine();
            }
        }
    }

**Output**

**输出量**

Red: 10
    Green: 20
    Blue: 21

**Example 3: Printing enum’s constant name & value using foreach loop**

**示例3：使用foreach循环打印枚举的常量名称和值**

Here, we are using Enum.GetValues(typeof(Days) which returns an array of all **enum** values and to get the name of **enum**, we are using Enum.GetName(typeof(Days), day). Here, Days is the **enum** name and day is the index.

在这里，我们使用Enum.GetValues(typeof(Days) ，它返回所有**枚举**值的数组，并获取**enum**的名称，我们在使用Enum.GetName(typeof(Days)，day) 。这里， Days是**枚举**名称和日期是索引。

using System;
    using System.Text;
    
    namespace Test
    {
        
        class Program
        {
        
            //declaring enum
            enum Days {
         SUN, MON, TUE, WED, THU, FRE, SAT };
            static void Main(string[] args)
            {
        
                //printing enum using foreach loop
                foreach (int day in Enum.GetValues(typeof(Days)))
                {
        
                    Console.WriteLine("Name: {0}, Value: {1}", Enum.GetName(typeof(Days), day), (int)day);
                }
    			
                //hit ENTER to exit
                Console.ReadLine();
            }
        }
    }

**Output**

**输出量**

Name: SUN, Value: 0
    Name: MON, Value: 1
    Name: TUE, Value: 2
    Name: WED, Value: 3
    Name: THU, Value: 4
    Name: FRE, Value: 5
    Name: SAT, Value: 6

> 翻译自: [https://www.includehelp.com/dot-net/enumeration-enum-in-c-sharp.aspx][https_www.includehelp.com_dot-net_enumeration-enum-in-c-sharp.aspx]

c\#枚举数字转枚举

[https_www.includehelp.com_dot-net_enumeration-enum-in-c-sharp.aspx]: https://www.includehelp.com/dot-net/enumeration-enum-in-c-sharp.aspx