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                            屬性值可以是

                            string,number,boolean,null,Object,Array

                   比如:

                            {'name':'zs','age',22}

                            {'name':'ww','address':

                                     {

                                               'city':'bj',

                                               'street':'ca'

                                     }

                            }

                   b,定義一個數(shù)組

                            [{},{},{}]

         3)使用json交換數(shù)據(jù)

                   a, java對象轉(zhuǎn)換成json字符串

                            //obj要轉(zhuǎn)換的java對象

                            JSONObject jsonObj = JSONObject.fromObject(obj);

                            jsonObj.toString();

                            如果要轉(zhuǎn)換是java對象組成的數(shù)組或者是集合，

                            使用：

                            JSONArray jsonObj =

                            JSONArray.fromObject(stocks);

                       jsonObj.toString();