JSON 之 SuperObject(5): Format 与转义字符

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.

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