错误")"预期,但随后无效令牌")"?

时间:2018-04-26 23:17:31

标签: c# .net powershell

就C#而言,我是一个初学者,我完全不知道这里的错误是什么......

using System;
using System.Windows.Forms;
namespace Sancarn
{
    public class Form1 : Form 
    {
        public event EventHandler MessageHandler;
        public Message lastMessage;

        public string ptrToString(ptr As IntPtr)
        {
            return Marshal.PtrToStringAnsi(ptr);
        }

        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")]
        protected override void WndProc(ref Message m){
            EventHandler handler = MessageHandler;
            lastMessage = m;
            if(null != MessageHandler) MessageHandler(this,EventArgs.Empty);
            base.WndProc(ref m);
        }
    }
}

当我尝试在powershell中将其添加为新类型时,我收到以下错误:

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(11) : ) expected
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(10) : 
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(11) : >>>         public string ptrToString(ptr As IntPtr)
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(12) :         {
I...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(11) : Invalid token ')' in class, struct, or interface member declaration
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(10) : 
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(11) : >>>         public string ptrToString(ptr As IntPtr)
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(12) :         {
...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(13) : Invalid token '(' in class, struct, or interface member declaration
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(12) :         {
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(13) : >>>             return Marshal.PtrToStringAnsi(ptr);
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(14) :         }
...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(13) : Invalid token ')' in class, struct, or interface member declaration
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(12) :         {
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(13) : >>>             return Marshal.PtrToStringAnsi(ptr);
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(14) :         }
...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(17) : Expected class, delegate, enum, interface, or struct
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(16) :         [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, 
Name="FullTrust")]
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(17) : >>>         protected override void WndProc(ref Message m){
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(18) :             EventHandler handler = MessageHandler;
...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(26) : Type or namespace definition, or end-of-file expected
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(25) :     }
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(26) : >>> }
...

Add-Type : c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(16) : The modifier 'override' is not valid for this item
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(15) : 
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(16) : >>>         [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, 
Name="FullTrust")]
c:\Users\sancarn\AppData\Local\Temp\vqezctgu.0.cs(17) :         protected override void WndProc(ref Message m){
...

所以我不确定这里发生了什么。从我的角度来看,所有的括号都是正确配对的...我已经弄清楚,如果我注释掉ptrToString声明,那么这个类就编译得很好......所以这让我相信这个声明是以某种方式归咎于这个错误,但是...要么我失明了,要么失去了一些大的东西,要么这个陈述没有错?......

public string ptrToString(ptr As IntPtr){
    return Marshal.PtrToStringAnsi(ptr);
}

1 个答案:

答案 0 :(得分:3)

在C#中,您不使用As声明方法参数 - 即VB。

这是固定代码:

using System;
using System.Windows.Forms;
namespace Sancarn {
    public class Form1 : Form {
        public event EventHandler MessageHandler;
        public Message lastMessage;

        public string ptrToString(System.IntPtr ptr) {
            return Marshal.PtrToStringAnsi(ptr);
        }

        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
        protected override void WndProc(ref Message m) {
            EventHandler handler = MessageHandler;
            lastMessage = m;
            if (null != MessageHandler) MessageHandler(this, EventArgs.Empty);
            base.WndProc(ref m);
        }
    }
}