using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Data;using System.Data.SqlClient;using System.IO;namespace WindowsFormsApplication3{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            string conn = "Data Source=(local); Database=modelsearch3;Integrated Security=SSPI;";            SqlConnection objcon = new SqlConnection(conn);            SqlDataAdapter adapter;            adapter = new SqlDataAdapter("select * from model", objcon);            SqlCommandBuilder sqlBuilder = new SqlCommandBuilder(adapter);            objcon.Open();             DataTable dt = new DataTable("model");            adapter.Fill(dt);            for (int i = 0; i < 631; i++)            {                DataRow row = dt.Rows[i];                string f = row.ItemArray[4].ToString();                string s = row.ItemArray[7].ToString();                string t = row.ItemArray[8].ToString();                //StreamWriter fw = File.AppendText("C:\\frontString.txt");                //fw.Write(f + "\r\n");                //StreamWriter sw = File.AppendText("C:\\sideString.txt");                //sw.Write(s + "\r\n");                //StreamWriter tw = File.AppendText("C:\\topString.txt");                //tw.Write(t + "\r\n");                StreamWriter zw = File.AppendText("C:\\modelString.txt");                zw.Write(f + s + t + "\r\n");                //fw.Close();                //sw.Close();                //tw.Close();                zw.Close();            }        }    }}

 参考：

http://zhidao.baidu.com/question/318486288.html

 

C#读取文本

int file_count = 0;            StreamReader front_file_reader = new StreamReader("C:\\front_coordinate_add.txt");            StreamReader side_file_reader = new StreamReader("C:\\side_coordinate_add.txt");            StreamReader top_file_reader = new StreamReader("C:\\top_coordinate_add.txt");            ArrayList frontFeature = new ArrayList();   //前台sketch的特征符 (front)            ArrayList sideFeature = new ArrayList();    //前台sketch的特征符 (side)            ArrayList topFeature = new ArrayList();     //前台sketch的特征符 (top)            while (file_count < 5)            {                string front_file_route = "";                front_file_route = front_file_reader.ReadLine();                string side_file_route = "";                side_file_route = side_file_reader.ReadLine();                string top_file_route = "";                top_file_route = top_file_reader.ReadLine();                string front_coordinate_str = "";                //char[] front_buffer = new char[30000];                StreamReader front_reader = new StreamReader(front_file_route);                //front_reader.Read(front_buffer,0,29999);                front_coordinate_str = front_reader.ReadLine();                //string front_coordinate_str = new string(front_buffer);                front_reader.Close();                string side_coordinate_str = "";                StreamReader side_reader = new StreamReader(side_file_route);                side_coordinate_str = side_reader.ReadLine();                side_reader.Close();                string top_coordinate_str = "";                StreamReader top_reader = new StreamReader(top_file_route);                top_coordinate_str = top_reader.ReadLine();                top_reader.Close();                bool result = WordStreamMatching.getInstance().matching(front_coordinate_str, side_coordinate_str, top_coordinate_str, ref frontFeature, ref sideFeature, ref topFeature);                if (!result)                    MessageBox.Show("123");                file_count++;            }