asp.net core 多版本webapi（v1/v2）Swagger UI

asp.net core webapi多版本示例，Swagger UI实现

using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;

namespace MicroServiceCategory.API
{
    public class Program
    {
        public static void Main（string[] args）
        {
            BuildWebHost（args）.Run（）;
        }

        public static IWebHost BuildWebHost（string[] args） =>
            WebHost.CreateDefaultBuilder（args）
                .UseStartup（）
                .Build（）;
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件        3842  2018-08-20 20:08  .gitignore
     目录           0  2018-09-02 21:03  .vs\
     目录           0  2018-09-02 21:12  .vs\MicroServiceCategory\
     目录           0  2018-09-02 21:12  .vs\MicroServiceCategory\DesignTimeBuild\
     文件     1245910  2018-09-02 21:12  .vs\MicroServiceCategory\DesignTimeBuild\.dtbcache
     目录           0  2018-09-02 21:02  .vs\MicroServiceCategory\v15\
     文件       45056  2018-09-02 21:12  .vs\MicroServiceCategory\v15\.suo
     目录           0  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\
     目录           0  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\sqlite3\
     文件           0  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\sqlite3\db.lock
     文件        4096  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\sqlite3\storage.ide
     文件       32768  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\sqlite3\storage.ide-shm
     文件     2035312  2018-09-02 21:02  .vs\MicroServiceCategory\v15\Server\sqlite3\storage.ide-wal
     目录           0  2018-09-02 21:03  .vs\config\
     文件       80083  2018-09-02 21:03  .vs\config\applicationhost.config
     目录           0  2018-09-02 21:02  MicroServiceCategory.API\
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Controllers\
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Controllers\v1\
     文件        3350  2018-08-20 20:08  MicroServiceCategory.API\Controllers\v1\CategoryController.cs
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Controllers\v2\
     文件         881  2018-08-20 20:08  MicroServiceCategory.API\Controllers\v2\CategoryController.cs
     文件        1297  2018-09-02 21:03  MicroServiceCategory.API\MicroServiceCategory.API.csproj
     文件        1899  2018-08-20 20:08  MicroServiceCategory.API\MicroServiceCategory.API.xml
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Models\
     文件         367  2018-08-20 20:08  MicroServiceCategory.API\Models\Category.cs
     文件         424  2018-08-20 20:08  MicroServiceCategory.API\Program.cs
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Properties\
     文件         697  2018-08-20 20:08  MicroServiceCategory.API\Properties\launchSettings.json
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Services\
     文件        1557  2018-08-20 20:08  MicroServiceCategory.API\Services\CategoryService.cs
     目录           0  2018-09-02 21:01  MicroServiceCategory.API\Services\Interfaces\
............此处省略30个文件信息