【疑难杂症】结构体定义会导致程序崩溃

C# code

//类定义    public class Classxxoo    {                                                                     private const int MAX_CLIPENUM_IN_BLOCK = 254;                      private const int BLOCK_INDEX_NUM = (8 * 1024);                                                                                     //[StructLayout(LayoutKind.Sequential)]        private struct Block_File        {            public uint frameNum;              public uint clipStime;             public uint clipEtime;             public uint clip_size;             public uint index_num;         }                                  //[StructLayout(LayoutKind.Sequential)]        private struct clipIdx_info_t        {            public byte channel;            public byte status;                      public ushort fileInfoIdx;               public Block_File blkfile;   //注意，这一行注释掉就正常工作了            public uint index_off;                   public uint clip_off;                }                                        //[StructLayout(LayoutKind.Sequential)]        private struct KeyIndex        {            public uint cKeyOffset;                public uint TimeStampSec;         }        //[StructLayout(LayoutKind.Sequential)]        private struct blockIdx_info_t        {            public uint block_inf;               public uint block_size;              public uint block_no;                public byte channel;                 public byte block_status;            public byte block_type;              public byte clip_num;                public uint recover_num;             public uint write_Size;              public uint blockStime;              public uint blockEtime;              public uint index_num;               [MarshalAs(UnmanagedType.ByValArray, SizeConst = 28)]            public byte[] rev;                  [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]            public clipIdx_info_t[] clip_info;                 }        private blockIdx_info_t m_FileIndex;        public Classxxoo( )        {            m_FileIndex = new blockIdx_info_t();        }    }//------------------运行代码------------------------    class Program    {        static void Main(string[] args)        {            Classxxoo xxoo = new Classxxoo( );            Console.WriteLine(xxoo.ToString());            Console.Read();        }    }

异常提示


未处理 System.TypeLoadException
Message=未能从程序集“ConsoleApplication1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null”中加载类型“ConsoleApplication1.Classxxoo”。
Source=ConsoleApplication1
TypeName=ConsoleApplication1.Classxxoo
StackTrace:
在 ConsoleApplication1.Program.Main(String[] args)
在 System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
在 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
在 System.Threading.ThreadHelper.ThreadStart()
InnerException:


[解决办法]
我将你的代码直接复制编译可以通过啊，只不过有很多“赋值未使用”“一直保持默认值”之类的警告而已
[解决办法]
在VS2010上DEBUG没问题。。楼主单独创建个项目，把你上面的代码粘贴上跑下喃？

只有你上面的这些代码确实跑不出问题啊
[解决办法]
按照lz的写法，结构体是Classxxoo类的成员，类的初始化会先初始化变量m_FileIndex，这时候结构体定义都还没有。建议lz将结构体定义写在类的外面，与类平级。注意不能加private修饰符。

[解决办法]
对，不要加private ,或你改成static已没问题的。
[解决办法]
刚才亲自测试通过，是VS2010，FM 4.0可能运行。

探讨

对，不要加private ,或你改成static已没问题的。

[解决办法]
为啥就只有4.0才可以呢，这个和framework有什么关联
[解决办法]
既然4.0支持dynamic，想必运行的时候没有去考虑类成员的完整性。
[解决办法]

C# code

//结构体定义        //[StructLayout(LayoutKind.Sequential)]        struct Block_File        {            public uint frameNum;              public uint clipStime;             public uint clipEtime;             public uint clip_size;             public uint index_num;         }                                  //[StructLayout(LayoutKind.Sequential)]        struct clipIdx_info_t        {            public byte channel;            public byte status;                      public ushort fileInfoIdx;               public Block_File blkfile;   //注意，这一行注释掉就正常工作了            public uint index_off;                   public uint clip_off;                }                                        //[StructLayout(LayoutKind.Sequential)]        struct KeyIndex        {            public uint cKeyOffset;                public uint TimeStampSec;         }        //[StructLayout(LayoutKind.Sequential)]        struct blockIdx_info_t        {            public uint block_inf;               public uint block_size;              public uint block_no;                public byte channel;                 public byte block_status;            public byte block_type;              public byte clip_num;                public uint recover_num;             public uint write_Size;              public uint blockStime;              public uint blockEtime;              public uint index_num;               [MarshalAs(UnmanagedType.ByValArray, SizeConst = 28)]            public byte[] rev;                  [MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]            public clipIdx_info_t[] clip_info;                 }//类定义    public class Classxxoo    {                                                                     private const int MAX_CLIPENUM_IN_BLOCK = 254;                      private const int BLOCK_INDEX_NUM = (8 * 1024);                                                                                     private blockIdx_info_t m_FileIndex;        public Classxxoo( )        {            m_FileIndex = new blockIdx_info_t();        }    }//------------------运行代码------------------------    class Program    {        static void Main(string[] args)        {            Classxxoo xxoo = new Classxxoo( );            Console.WriteLine(xxoo.ToString());            Console.Read();        }    }