Question

jsoncpp库如何控制插入项在json字符串中的

Answer 1

引入using Newtonsoft.Json;
数据查询后填充到DataTable ,再转　JsonConvert.SerializeObject
简单例子：
DataTable dt = new DataTable();
DataColumn dcName = new DataColumn("Name");
DataColumn dcAge = new DataColumn("Age");
DataColumn dcCity = new DataColumn("City");

dt.Columns.Add(dcName);
dt.Columns.Add(dcAge);
dt.Columns.Add(dcCity);
for (int i = 0; i < 10; i++)
{
DataRow dr = dt.NewRow();
dr[0] = "Name" + i;
dr[1] = "Age" + i;
dr[2] = "City" + i;
dt.Rows.Add(dr);
}
json = JsonConvert.SerializeObject(dt);

Answer 2

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