.NET Framework迁移.NET Core记录

1.反射
//AssemblyBuilder assemblyBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);//原代码
AssemblyBuilder assemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);

2.上传文件
原代码：HttpPostedFileBase
替换为：IFormFile
需引用：Microsoft.AspNetCore.Http.Features.dll     3.1.9

可参考：https://www.cnblogs.com/leoxuan/articles/11087121.html

3. 当前路径
原代码：HttpContext.Current.Server.MapPath(upUrl)
替换为：AppContext.BaseDirectory


4.判断是否手机端
private static readonly Regex b = new Regex(@"(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline)