unit Unit1; interface uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs,System.Generics.Defaults,System.Generics.Collections, Vcl.StdCtrls,REST.Json,DBXJSON, DBXJSONReflect,system.JSON; type TForm1 = class(TForm) Button1: TButton; memLog: TMemo; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; TPerson=class(TObject) name:String; age:Integer; end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); var aPerson:TPerson; dataList:TList<TPerson>; json:String; jo:TJSONObject; begin try dataList:=TList<TPerson>.Create; aPerson:=TPerson.Create; aPerson.name:='中文'; aPerson.age:=10; dataList.Add(aPerson); aPerson:=TPerson.Create; aPerson.name:='Tom'; aPerson.age:=20; dataList.Add(aPerson); jo:=TJson.ObjectToJsonObject(dataList); memLog.Text:=jo.GetValue('items').ToString; finally dataList.Free; end; end; end.