c# - 错误 CS0116 : A namespace cannot directly contain members such as fields or methods

Question

好的，所以我正在尝试制作一个程序来检查程序当前是否正在运行。每当我宣布无效时，它都会给我一个错误。我是 C# 的新手，如果它很愚蠢，我很抱歉。

using System;
using System.Windows;
using System.Collections.Generic;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using Microsoft.VisualBasic.ApplicationServices;

namespace IsProgramRunning
{
    private void IsRunning()
    {
        Process[] pname = Process.GetProcessesByName("VLC Player");
        if (pname.Length > 0)
        {
            MessageBox.Show("Process Running");
        }
        else
        {
            MessageBox.Show("Process Not running");
        }
        System.Threading.Thread.Sleep(5 * 1000);
    }
    static void Main()
    {
        ServiceBase[] ServicesToRun;
        ServicesToRun = new ServiceBase[]
        {
        new Service1()
        };
        ServiceBase.Run(ServicesToRun);


    }
}

如果我这样做全错了，有一个简单的方法可以在 c++ 中做到这一点，这对

Answer 1

要拥有实例成员和方法，您需要一个 class .你混淆了 namespace 和 class

namespace MyAwesomeNameSpace
{
   public class ProgramRunningHelper
   {
       // put your class code here

   }
}

---

Compiler Error CS0116

A namespace cannot directly contain members such as fields or methods.

A namespace can contain other namespaces, structs, and classes.