C# 各种通用类集合

01.程序配置管理辅助类MyAppConfigHelper.cs02.实现各种转换的操作辅助类MyConvertHelper.cs03.DataReader的辅助类MyDataReaderHelper.cs04.DataTable操作辅助类MyDataTableHelper.cs05.DateTime的辅助类MyDateTimeHelper.cs06.常用的目录操作辅助类MyDirHelper.cs07.枚举操作辅助类MyEnumHelper08.Excel操作辅助类（无需VBA引用）MyExcelHelper.cs09.打开、保存文件对话框操作辅助类MyFileDialogHelper.cs10.常用文件操作辅助类My