//using?System;
//using?System.Collections.Generic;
//using?System.Linq;
//using?System.Text;
//using?System.Threading.Tasks;

//namespace?ConsoleApp1
//{
//????class?InvokeAdd
//????{
//????}
//}
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Runtime.InteropServices;
namespace?ConsoleApp1
{
????class?InvokeAdd
????{
????????[DllImport（“PROJECT4.dll“?CharSet?=?CharSet.Auto?CallingConvention?=?CallingConvention.Cdecl）]
????????public?static?extern?int?Add（int?x?int?y）;

????????[DllImport（“PROJECT4.dll“?CharSet?=?CharSet.Auto?CallingConvention?=?CallingConvention.Cdecl）]
????????public?static?extern?int?minus（int?x?int?y）;
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\.vs\
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\.vs\ConsoleApp1\
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\.vs\ConsoleApp1\v15\
?????文件???????40448??2019-03-19?11:30??ConsoleApp1\.vs\ConsoleApp1\v15\.suo
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\.vs\ConsoleApp1\v15\Server\
?????目錄???????????0??2019-03-19?11:04??ConsoleApp1\.vs\ConsoleApp1\v15\Server\sqlite3\
?????文件???????????0??2019-03-19?10:46??ConsoleApp1\.vs\ConsoleApp1\v15\Server\sqlite3\db.lock
?????文件??????446464??2019-03-19?11:04??ConsoleApp1\.vs\ConsoleApp1\v15\Server\sqlite3\storage.ide
?????文件???????32768??2019-03-19?11:04??ConsoleApp1\.vs\ConsoleApp1\v15\Server\sqlite3\storage.ide-shm
?????文件???????82432??2019-03-19?11:05??ConsoleApp1\.vs\ConsoleApp1\v15\Server\sqlite3\storage.ide-wal
?????目錄???????????0??2019-03-19?11:05??ConsoleApp1\ConsoleApp1\
?????文件????????1131??2019-03-19?10:46??ConsoleApp1\ConsoleApp1.sln
?????文件?????????189??2019-03-19?10:46??ConsoleApp1\ConsoleApp1\App.config
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\ConsoleApp1\bin\
?????目錄???????????0??2019-03-19?11:03??ConsoleApp1\ConsoleApp1\bin\Debug\
?????文件????????5120??2019-03-19?11:05??ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.exe
?????文件?????????189??2019-03-19?10:46??ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.exe.config
?????文件???????15872??2019-03-19?11:05??ConsoleApp1\ConsoleApp1\bin\Debug\ConsoleApp1.pdb
?????文件???????37376??2019-03-19?11:02??ConsoleApp1\ConsoleApp1\bin\Debug\PROJECT4.dll
?????文件????????2578??2019-03-19?11:02??ConsoleApp1\ConsoleApp1\bin\Debug\PROJECT4.lib
?????文件????????2412??2019-03-19?10:56??ConsoleApp1\ConsoleApp1\ConsoleApp1.csproj
?????文件?????????742??2019-03-19?11:04??ConsoleApp1\ConsoleApp1\InvokeAdd.cs
?????目錄???????????0??2019-03-19?10:46??ConsoleApp1\ConsoleApp1\obj\
?????目錄???????????0??2019-03-19?10:52??ConsoleApp1\ConsoleApp1\obj\Debug\
?????文件??????????42??2019-03-19?10:53??ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.csproj.CoreCompileInputs.cache
?????文件?????????473??2019-03-19?10:52??ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.csproj.FileListAbsolute.txt
?????文件????????8077??2019-03-19?10:46??ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.csprojAssemblyReference.cache
?????文件????????5120??2019-03-19?11:05??ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.exe
?????文件???????15872??2019-03-19?11:05??ConsoleApp1\ConsoleApp1\obj\Debug\ConsoleApp1.pdb
?????文件????????6722??2019-03-19?10:53??ConsoleApp1\ConsoleApp1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
............此處省略54個文件信息