JSON 之 SuperObject(5): Format 与转义字符

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;



type

  TForm1 = class(TForm)

    Button1: TButton;

    Button2: TButton;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



uses SuperObject;



//Format

procedure TForm1.Button1Click(Sender: TObject);

var

  jo: ISuperObject;

begin

  jo := SO('{"Name":"张三", "Age":88, "Tel":["111,222"], "Children":{"Name":"张继"}}');



  ShowMessage(jo.Format('姓名: %Name%; 年龄: %Age%'));



  ShowMessage(jo.Format('%Tel%; %Tel[0]%; %Tel[1]%'));



  ShowMessage(jo.Format('%Children%; %Children.Name%'));



  ShowMessage(jo.Format('[Name], [Age]', '[', ']')); {可更换默认的 % 标记}

end;



//特殊字符

procedure TForm1.Button2Click(Sender: TObject);

var

  jo: ISuperObject;

begin

  jo := SO;



  { \u }

  jo := SO('"\u0041\u0042\u0043"');

  ShowMessage(jo.AsString);



  { \x }

  jo := SO('"\x41\x42\x43"');

  ShowMessage(jo.AsString);



  { \u 汉字}

  jo := SO('"\u4e07\u4e00"');

  ShowMessage(jo.AsString);



  { \u 后面的数字可大写 }

  jo := SO('"\u4E07\u4E00"');

  ShowMessage(jo.AsString);



  { \\、\/ }

  jo := SO('"A\\B\/C"');

  ShowMessage(jo.AsString);



  { \t、\n 还有 \b、\f、\r }

  jo := SO('"A\tB\nC"');

  ShowMessage(jo.AsString);



  { \"" }

  jo := SO('"\"ABC\""');

  ShowMessage(jo.AsString);



  { null 是 JSON 的一种数据类型, 代表空值, 空值也是值的一种 }

  jo := SO('[1,2,3,null]');

  ShowMessage(jo.AsString);

end;



end.