我收到 2 个错误，CS8803 和 C20266

Question

在编写一个控制台应用程序来计算周长时，当我编译我的代码时，我遇到了两个控制台错误（见上图）这是我的代码

Console.Title = "Constant";
enum Days { Sat, Sun, Mon, Tue, Wed, Thu , Fri};
const double pi = 4159265358979;
var daystype = typeof(DayOfWeek);
Console.WriteLine("Pi Type" + pi.GetType());
Console.WriteLine("Circumfrence" + (pi * 3));

Answer 1

您不能将枚举放在局部函数中。您的应用程序结构应该是

public class Program
{

 enum Days { Sat, Sun, Mon, Tue, Wed, Thu, Fri };

    static void Main()
    {
        Console.Title = "Constant";
        const double pi = 4159265358979;
        var daystype = typeof(DayOfWeek);
        Console.WriteLine("Pi Type" + pi.GetType());
        Console.WriteLine("Circumfrence" + (pi * 3));
    }
}

我收到 2 个错误，CS8803 和 C20266

I am getting 2 errors, CS8803, and C20266

c#

console-application