C#获取某个Attribute标记过的所有类

System.Reflection.Assembly asm = System.Reflection.Assembly.GetAssembly(typeof(CustomAttribute));

System.Type[] types = asm.GetExportedTypes();

Func<Attribute[], bool> IsMyAttribute = o =>

{

    foreach(Attribute a in o)

    {

        if (a is CustomAttribute)

            return true;

    }

    return false;

};

System.Type[] cosType = types.Where(o =>

{

    return IsMyAttribute(System.Attribute.GetCustomAttributes(o,true));

}

).ToArray();

cosType数组即为所有被CustomAttribute标记过的类。