delphi怎么得到下面的json数据中的多个节点值

Delphi下解析json可以去下载一个superobject单元，关于这个单元的使用可以百度一下，很好用的

Delphi/Pascal code?

// Sample 2: how to get child type and subobject fields

//

// Leonid Koninin, 02/03/2007

program sample2;

{$APPTYPE CONSOLE}

uses SysUtils, uLkJSON in 'uLkJSON.pas';

var JSon, XJSon :TlkJSONobject; JSonNode :TlkJSONString; JSonNodeList :TlkJSONlist; Str :String; i :Integer;

begin

Str := '{"string1":"one", "string2":"two", '

+'"childobject" : {"objstr1" :"Oone", "objstr2" :"Otwo"},'

+'"childobject2":[{"obj2str1":"2one"},{"obj2str1":"2two"}]}'; writeln(Str);

JSon := TlkJSON.ParseText(Str) as TlkJSONobject; // restore object (parse text)

if not assigned(JSon) then begin // how to obtain type of child

writeln('error: xs not assigned!'); readln; //exit;

end else begin //Field[] is 方式判断类型

if JSon.Field['childobject'] is TlkJSONString then writeln('type: xs is string!'); //string

if JSon.Field['childobject'] is TlkJSONlist then writeln('type: xs is list!'); //list 多个Json子节点

if JSon.Field['childobject'] is TlkJSONobject then writeln('type: xs is object!'); //Oject 单个json子节点

//以下类型，实际不常用

if JSon.Field['childobject'] is TlkJSONnumber then writeln('type: xs is number!'); //数字 value前后不加引号

if JSon.Field['childobject'] is TlkJSONboolean then writeln('type: xs is boolean!'); //boolean

if JSon.Field['childobject'] is TlkJSONnull then writeln('type: xs is null!'); //Null 改为空格值

end;

//Filed[].SelfType 方式判断类型

case JSon.Field['childobject'].SelfType of //the other way (0.93+)

jsString :writeln('other type: xs is string');

jsObject :writeln('other type: xs is object');

jsList :writeln('other type: xs is list');

jsNumber :writeln('other type: xs is number');

jsBoolean :writeln('other type: xs is boolean');

jsNull :writeln('other type: xs is null');

jsBase :writeln('other type: xs is base');

end;

writeln('self-type name: ', JSon.Field['childobject'].SelfTypeName);

XJSon :=JSon.Field['childobject'] as TlkJSONobject; //JSON中，有下级节点的，不像xml那样称为节点对象，仍称为JSOn对象

//Field[] as方式取值,完美

JSonNode :=XJSon.Field['objstr1'] as TlkJSONString; //we know what xs chilren are strings

writeln(JSonNode.value);

JSonNode :=XJSon.Field['objstr2'] as TlkJSONstring;

writeln(JSonNode.value);

//getstring，快速

writeln(XJSon.getString('objstr1')); //new v0.99 +syntax!

writeln(XJSon.getString('objstr2')); readln;

JSon.Free;

end.