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» delphi的开源json库:superobject,用法简介
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Subject: delphi的开源json库:superobject,用法简介
zzzl
(早安的空气)
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#1
Post at 2009-9-28 21:50
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delphi的开源json库:superobject,用法简介
var
j, a: ISuperObject; //不能是TSuperObject,尽管有TSuperObject这个类,但这里就是要这样无厘头。
begin
j:=TSuperObject.Create(stObject); //创建一个json对象,如果参数是stArray,j就是一个json数组,参数还可以是其它的变量类型,比如字符串,数值之类的,看起来很强大,但是如果参数是一个描述了json的字符串的话,你会得到一个错误。如果想从文本加载,用j:=SO(json文本);
j.I['数字']:=123; //就等于 {"数字": 123} ,类似的,I还可以变成S,B,C之类的,以表示字符串,布尔型,货币型。
j.S['{字符串}']:="值"; //这是个bug:带有花括号时没有任何效果。
a:=TSuperObject.Create(stArray); //创建一个json数组a
a.I['']:=111; //表示给a数组添加一个111元素。注意[]中的值为'',在数组中其[]的语义进行了颠覆性的改变。
a.I[2]:="s"; //第3个元素值为"s",嗯,[]在superobject的用法还真多
j['arr']:=a; //把数组a添加进j,其key名为arr
showmessage( j.toJson() ); //查看j的json文本
j:=nil; //不能写j.Free
end;
jAmEs_
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#2
Post at 2009-9-29 10:44
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