c#调用lingo　线性规划.doc

C#调用lingo第一个cs文件using System;using System.Text;using System.Runtime.InteropServices;public class lingo {/********************************************************************* * Macro Definitions * *********************************************************************/ public static int LSERR_NO_ERROR_LNG = 0; public static int LSERR_OUT_OF_MEMORY_LNG = 1; public static int LSERR_UNABLE_TO_OPEN_LOG_FILE_LNG = 2; public static int LSERR_INVALID_NULL_POINTER_LNG = 3; public static int LSERR_INVALID_INPUT_LNG = 4; public static int LSERR_INFO_NOT_AVAILABLE_LNG = 5; public static int LS_IINFO_VARIABLES_LNG = 0; public static int LS_IINFO_VARIABLES_INTEGER_LNG = 1; public static int LS_IINFO_VARIABLES_NONLINEAR_LNG = 2; public static int LS_IINFO_CONSTRAINTS_LNG = 3; public static int LS_IINFO_CONSTRAINTS_NONLINEAR_LNG = 4; public static int LS_IINFO_NONZEROS_LNG = 5; public static int LS_IINFO_NONZEROS_NONLINEAR_LNG = 6; public static int LS_IINFO_ITERATIONS_LNG = 7; public static int LS_IINFO_BRANCHES_LNG = 8; public static int LS_DINFO_SUMINF_LNG = 9; public static int LS_DINFO_OBJECTIVE_LNG =10; public static int LS_DINFO_MIP_BOUND_LNG =11; public static int LS_DINFO_MIP_BEST_OBJECTIVE_LNG =12; public static int LS_STATUS_GLOBAL_LNG = 0; public static int LS_STATUS_INFEASIBLE_LNG = 1; public static int LS_STATUS_UNBOUNDED_LNG = 2; public static int LS_STATUS_UNDETERMINED_LNG = 3; public static int LS_STATUS_INFORUNB_LNG = 5; public static int LS_STATUS_LOCAL_LNG = 6; public static int LS_STATUS_LOCAL_INFEASIBLE_LNG = 7; public static int LS_STATUS_CUTOFF_LNG = 8; public static int LS_STATUS_NUMERIC_ERROR_LNG = 9;/********************************************************************* * * * Function Prototypes * * * *********************************************************************/ [ DllImport( "lingd90.dll", EntryPoint = "LSclearPointersLng")] public static extern int LSclearPointersLng( int pLingoEnv); [ DllImport( "lingd90.dll", EntryPoint = "LScloseLogFileLng")] public static extern int LScloseLogFileLng( int pLingoEnv); [ DllImport( "lingd90.dll", EntryPoint = "LScreateEnvLng")] public static extern int LScreateEnvLng( ); [ DllImport( "lingd90.dll", EntryPoint = "LSdeleteEnvLng")] public static extern int LSdeleteEnvLng( int pLingoEnv); [ DllImport( "lingd90.dll", EntryPoint = "LSexecuteScriptLng")] public static extern int LSexecuteScriptLng( int pLingoEnv, string pcScript); [ DllImport( "lingd90.dll", EntryPoint = "LSgetCallbackInfoLng")] public static extern int LSgetCallbackInfoLng( int pLingoEnv, int nObject, ref int pnResult); [ DllImport( "lingd90.dll", EntryPoint = "LSopenLogFileLng")] public static extern int LSopenLogFileLng( int pLingoEnv, string pcLogFile); [ DllImport( "lingd90.dll", EntryPoint = "LSsetCallbackSolverLng")] public static extern int LSsetCallbackSolverLng( int pLingoEnv, lingo.typCallback pSolverCallbackFunction, [MarshalAs(UnmanagedType.AsAny)] object pMyData); [ DllImport( "lingd90.dll", EntryPoint = "LSsetPointerLng")] public static extern int LSsetPointerLng( int pLingoEnv, ref double pdPointer, ref int pnPointersNow); public delegate int typCallback( int pLingoEnv, int nReserved, IntPtr pUserData); }第二个cs文件----程序入口using System;using System.Text;using System.IO;using System.Runtime.InteropServices;using System.Runtime.Remoting;namespace Simple{ [StructLayout( LayoutKind.Sequential)] public class CallbackData { public int nIterations; // Constructor: public CallbackData() { nIterations = 0; } } class Class1 { /// Illustrates calling the Lingo DLL from C#.NET to /// solve the simple product mix model: /// Max 100 Standard + 150 Turbo; /// S.T. /// （X）Standard <= 100 /// （Y）Turbo <= 120 /// Standard + 2 * Turbo < 160; /// /// Note: The m。