标签:反射 Console String HelpAttrObject C# nameClass WriteLine public reflection
using System; using System.Linq; using System.Reflection; namespace ReflectionPractice { [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)] public class HelpAttribute : Attribute { public HelpAttribute(){} public HelpAttribute(String Description_in, Int64 idPage_in, String author_in) { this.description = Description_in; this.idPage = idPage_in; this.author = author_in; } protected String description; protected Int64 idPage; protected String author; public String Description { get { return this.description; } } public Int64 IdPage { get { return this.idPage; } } public String Author { get { return this.author; } } } [Help("this is a HelpAttribute use class", 15, "zhangsan")] [Help("this is a HelpAttribute2 use class", 32, "lisi")] public class UseHelpAttribute { public UseHelpAttribute(){} public UseHelpAttribute(String nameClass_in) { this.nameClassBase = nameClass_in; } protected String nameClassBase; public String NameClassBase { get { return this.nameClassBase; } } [Help("this is a base Display function", 99, "base you guess")] public void BaseDisplay() { Console.WriteLine(nameClassBase); } } public class UseHelpAttributeDerive : UseHelpAttribute { public UseHelpAttributeDerive(){} public UseHelpAttributeDerive(String nameClass_in) { this.nameClass = nameClass_in; } protected String nameClass; public String NameClass { get { return this.nameClass; } } [Help("this is a Display function", 100, "you guess")] public void Display() { Console.WriteLine(nameClass); } } class Program { public static void Main(string[] args) { // TODO: Implement Functionality Here UseHelpAttributeDerive UseHelpAttributeDeriveObject = new UseHelpAttributeDerive("DeriveClass"); UseHelpAttributeDeriveObject.Display(); //用反射获取元数据 Type info = typeof(UseHelpAttributeDerive); //遍历类特性 foreach (Object attributes in info.GetCustomAttributes(true)) { HelpAttribute HelpAttrObject = attributes as HelpAttribute; Console.WriteLine("描述:{0}", HelpAttrObject.Description); Console.WriteLine("页:{0}", HelpAttrObject.IdPage); Console.WriteLine("作者:{0}", HelpAttrObject.Author); Console.WriteLine(""); } //遍历类方法 foreach (MethodInfo m in info.GetMethods()) { foreach(Attribute attributes in m.GetCustomAttributes(false)) { HelpAttribute HelpAttrObject = attributes as HelpAttribute; if(HelpAttrObject != null) { Console.WriteLine("描述:{0}", HelpAttrObject.Description); Console.WriteLine("页:{0}", HelpAttrObject.IdPage); Console.WriteLine("作者:{0}", HelpAttrObject.Author); Console.WriteLine(""); } } } Console.ReadKey(true); } } }
运行结果;
标签:反射,Console,String,HelpAttrObject,C#,nameClass,WriteLine,public,reflection 来源: https://www.cnblogs.com/wuguoqiang/p/15215418.html
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