public class MyClass1 { [ColumnMapping("あいうえお")] public int ABC { get { return 0; } } } public class MyClass2 { [Mapping("かきくけこ")] public int DEF { get { return 0; } } } static void Main(string[ args) { Test t = new Test(); MyClass1 myClass = new MyClass1(); foreach (var s in t.GetAttributePropertyList<MyClass1...