1. 基礎用法，單個轉換

Obj 結構如下：

{obj,[{name,jack},{age,20}]}

基本用法：

fc4627:encode(Obj).

例子：

12> Obj = {obj,[{name,jack},{age,20}]}.

{obj,[{name,jack},{age,20}]}

13> Json = rfc4627:encode(Obj).

"{\"name\":\"jack\",\"age\":20}"

14> io:format(Json).

{"name":"jack","age":20}ok

2.處理一組Obj：

Obj list 結構：

{obj,[{lists,[{obj,[{name,jack},{age,20}]},{obj,[{name,tony},{age,21}]}]}]}

例子：

19> A = {obj,[{name,jack},{age,20}]}.

{obj,[{name,jack},{age,20}]}

20> B = {obj,[{name,tony},{age,21}]}.

{obj,[{name,tony},{age,21}]}

21> List = {obj, [{lists, [A, B]}]}.

{obj,[{lists,[{obj,[{name,jack},{age,20}]},

{obj,[{name,tony},{age,21}]}]}]}

23> Json = rfc4627:encode(List).

"{\"lists\":[{\"name\":\"jack\",\"age\":20},{\"name\":\"tony\",\"age\":21}]}"

24> io:format(Json).

{“l(fā)ists":[{"name":"jack","age":20},{"name":"tony","age":21}]}

3. 一組record轉json例子：