ds_dt_dr使用例子

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            DataSet ds = new DataSet("people");
            DataTable dt = new DataTable("peopleDT");
            ds.Tables.Add(dt);
            dt.Columns.AddRange(new DataColumn[]{
                new DataColumn("name",Type.GetType("System.String")),
                new DataColumn("sex",Type.GetType("System.String")),
                new DataColumn("age",Type.GetType("System.Int32"))
            });
            DataRow dr = dt.NewRow();
            dr["name"] = "张三其";
            dr["sex"] = "男";
            dr["age"] = 20;
            dt.Rows.Add(dr);

             dr = dt.NewRow();
             dr["name"] = "李师煊";
            dr["sex"] = "女";
            dr["age"] = 19;
            dt.Rows.Add(dr);

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                for (int j = 0; j < dt.Rows.Count; j++)
                {
                    Console.WriteLine(dt.Rows[i][j].ToString());
                    //Console.WriteLine();
                }
                
            }

            Console.ReadLine();
        }
        
    }
}