CSharp: Tuples

 

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/// <summary> /// 使用元组（Tuples或ValueTuple /// </summary> /// <param name="id"></param> /// <param name="name"></param> /// <returns></returns> public static (int, string) GetInfo(int gid,string gname) {     int id = gid;     string name = gname;     return (id, name); } /// <summary> /// AnonymousType /// </summary> /// <returns></returns> public static dynamic GetValuesAsDynamic(int gid, string gname) {     return new { id = gid, name =gname }; }

　　

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//元组Tuples var person = ("Geovin Du", 30, "Soft Developer"); Console.WriteLine(person.Item1);   Tuple<string, int, string> persons = new Tuple<string, int, string>("Geovin Du", 30, "Soft Developer"); Console.WriteLine($"Name: {persons.Item1}, Age: {persons.Item2}, Occupation: {persons.Item3}");   //使用元组（Tuples或ValueTuple var (gid, gname) = SortExample.GetInfo(20, "geovin"); Console.WriteLine($" id:{gid}，name:{gname}");   dynamic dynamicResult=SortExample.GetValuesAsDynamic(20, "geovindu"); Console.WriteLine(dynamicResult); Console.WriteLine(dynamicResult.GetType().GetProperty("id").GetValue(dynamicResult, null)); Console.WriteLine(dynamicResult.GetType().GetProperty("name").GetValue(dynamicResult, null)); Console.WriteLine(dynamicResult.GetType());   Stopwatch stopwatch = Stopwatch.StartNew();   Console.WriteLine(typeof(Person)); foreach (var propertyInfo in typeof(Person).GetProperties()) {     Console.WriteLine(propertyInfo.Name); }     var school = new {     Address = "Orlando",     Contact = 1200,     Employee = new { Id = 3, Name = "Tina" } };   Console.WriteLine(school.Address);     dynamicResult = SortExample.GetValuesAsDynamic(30, "geovindu");   //AnonymousType another = new AnonymousType(something); if (dynamicResult!=null) {       var v = dynamicResult;     // v.id = 3;     // v.name = "geovindu";     Console.WriteLine(v);    // object o = (object)v;     //Console.WriteLine(o.ToString());       //var d= Newtonsoft.Json.JsonConvert.DeserializeObject(dynamicResult.ToString());     var d = JsonConvert.DeserializeObject<dynamic>("{ id: 30, name: \"geovindu\" }");     }       stopwatch.Stop(); Console.WriteLine("Delegate: {0}ms", stopwatch.ElapsedMilliseconds);