很简单的一个问题，编译不过很迷惑

Question

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            enum WeekDays
            {
                Monday,
                Thuesday,
                Wendnesday,
                Thursday,
                Friday,
                Saturday,
                Sunday
            }
            
        }
    }
}
以上的代码为什么编译不过呢，一直提示缺少“}”。看了几本电子书，有两种写法，一种有“;”,一种没有，如下：
1）enum WeekDays
            {
                Monday,
                Thuesday,
                Wendnesday,
                Thursday,
                Friday,
                Saturday,
                Sunday
            };
2)enum WeekDays
            {
                Monday,
                Thuesday,
                Wendnesday,
                Thursday,
                Friday,
                Saturday,
                Sunday
            }(这个地方不加“;”)
到底哪种对啊？分不多了，见谅！

Answer 1

在方法中不可以定义type: enum WeekDays
将它的定义拿出去

Answer 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication4
{  class Program
  {
      enum WeekDays
      {
          Monday,
          Thuesday,
          Wendnesday,
          Thursday,
          Friday,
          Saturday,
          Sunday
      }  static void Main(string[] args)
  {    
  }
  }
}或
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication4
{
    enum WeekDays
    {
        Monday,
        Thuesday,
        Wendnesday,
        Thursday,
        Friday,
        Saturday,
        Sunday
    }
  class Program
  {
  static void Main(string[] args)
  {    
  }
  }
}

Answer 3

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication4
{
  class Program
  {
  static void Main(string[] args)
  {
    
  }
  enum WeekDays  //放类里面或者类外面都可以，看需要了
  {
  Monday,
  Thuesday,
  Wendnesday,
  Thursday,
  Friday,
  Saturday,
  Sunday
  }
  }
}

Answer 4

  枚举 怎么定义到Main 方法里面去了` 拿出来就好了