如何打开某目录下的全部txt文件,并读取这些文件中的数据？

[ybgiser]

对MIS的东西部熟悉，以前也没写过，希望大家多多帮忙啊。现在要实现的功能是，我在界面的textbox里输入一个路径，然后计算机能搜索出在这个路径下的所有.txt文件，并读取其中的数据，按照标示不同存放进数组中，后面并能按照标示取出相应的数据，其中数据格式是这样的：
POLYGON（面标示）
36345.082031 11517.118164 0.000000（x，y，z坐标）
36374.652344 11547.653320 0.000000
36368.117188 11553.867188 0.000000
36338.332031 11523.546875 0.000000

POINT（点）
41002.476563 10052.284180 0.000000（x，y，z坐标）

。。。。。。。

请大家帮忙啊，谢谢，在线等

[lzc2125]

思路：
1.寻找路径下所有的.txt文件
2.遍历所有文件，一个一个的读取
3.遍历的同时进行相关逻辑处理，比如：去标示数据

就可以了，每一步都需要相关技术，慢慢调查

[qqiuzaihui]

//读取单个文件的一个事例， 自己研究下。 把指定的单个文件换成 Directory.GetFiles() 就行了。

#region Using directives

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

#endregion

namespace CommaValues
{
class Program
{
private static List<Dictionary<string, string>> GetData(out List<string> columns)
{
string strLine;
string[] strArray;
char[] charArray = new char[] { ','}; //以逗号分隔，换成以空格分隔就行了
List<Dictionary<string, string>> data = new List<Dictionary<string, string>>();
columns = new List<string>();

try
{
FileStream aFile = new FileStream("../../../SomeData.txt", FileMode.Open);
StreamReader sr = new StreamReader(aFile);

// Obtain the columns from the first line //从文件的第一行中获取列标
// Split row of data into string array
strLine = sr.ReadLine();
strArray = strLine.Split(charArray);

for (int x = 0; x <= strArray.GetUpperBound(0); x++) //获取 Array 的指定维度的上限。
{
columns.Add(strArray[x]);
}

strLine = sr.ReadLine();
while (strLine != null)
{
// Split row of data into string array
strArray = strLine.Split(charArray);
Dictionary<string, string> dataRow = new Dictionary<string, string>(); //Dictionary表示键和值的集合

for (int x = 0; x <= strArray.GetUpperBound(0); x++) //集合中的每一项都有一个对应于列名的键和一个值
{
dataRow.Add(columns[x], strArray[x]);
}

data.Add(dataRow);
strLine = sr.ReadLine();
}

sr.Close();
return data;
}
catch (IOException ex)
{
Console.WriteLine("An IO exception has been thrown!");
Console.WriteLine(ex.ToString());
Console.ReadLine();
return data;
}
}

static void Main(string[] args)
{
List<string> columns;
List<Dictionary<string, string>> myData = GetData(out columns);

foreach (string column in columns)
{
Console.Write("{0,-20}", column);
}
Console.WriteLine();

foreach (Dictionary<string, string> row in myData)
{
foreach (string column in columns)
{
Console.Write("{0,-20}", row[column]);
}
Console.WriteLine();
}
Console.ReadKey();
}
}
}


/*************SomeData.txt中的数据：***************
ProductID,Name,Price
1,Spiky Pung,1000
2,Gloop Galloop Soup,25
4,Hat Sauce,12
**************************************************/

[falx2004]

//这个是个窗体类
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Collections;

namespace TextReader
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }

        string _fileFolder="";
        public string fileFolder
        {
            get
            {
                return _fileFolder;
            }
        }

        bool ishavePage = false;
        string _fileName = "";
        public string fileName
        {
            get
            {
                return _fileName;
            }
        }

       
        string _fileFullName = "";
        public string fileFullName
        {
            get
            {
                return _fileFullName;
            }
        }

        List<string> fileFullNameList = new List<string>();
        private void btnAddNext_Click(object sender, EventArgs e)
        {
            bool added = false;
            if (fileFullNameList==null||fileFullNameList.Count==0)
            {
                DirectoryInfo di = new DirectoryInfo(_fileFolder);
                if (!di.Exists)
                {
                    return;
                }
                FileInfo[] fi = di.GetFiles();
                foreach (FileInfo file in fi)
                {
                    string t= file.FullName;
                    string[] tlist=  t.Split('.');

                    if (tlist[tlist.Length-1].ToLower()=="txt")
                    {  
                        fileFullNameList.Add(file.FullName);
                    }
                  
                }
            }
                for (int i = 0; i < fileFullNameList.Count; i++)
                {
                    if (added)
                    {
                        return;
                    }
                    string[] temp = fileFullNameList[i].Split('\\');
                    string tempFileName = temp[temp.Length - 1];
                    bool isfileOpened = false;
                    for (int j = 0; j < tabControl1.TabPages.Count; j++)
                    {
                        if (tabControl1.TabPages[j].Text==tempFileName)
                        {
                            isfileOpened = true;
                            break;
                        }
                    }
                    if (!isfileOpened)
                    {
                        textBox t = new textBox();
                        t.setText(readTxtFile(fileFullNameList[i], ""));
                        tabControl1.TabPages.Add(tempFileName);
                        if (tabControl1.TabPages.Count != 0)
                        {
                            for (int k = 0; k < tabControl1.TabPages.Count; k++)
                            {
                                if (tabControl1.TabPages[k].Text == tempFileName)
                                {
                                  //  tabControl1.TabPages[k].Focus();
                                    tabControl1.SelectTab(tabControl1.TabPages[k]);
                                    tabControl1.TabPages[k].Controls.Add(t);
                                    tabControl1.TabPages[k].Controls[0].Dock = DockStyle.Fill;
                                    added = true;
                                }
                            }
                        }
                    }
                }
           
            
          

        }

        private void btnOpen_Click(object sender, EventArgs e)
        {
            if(openFileDialog1.ShowDialog()==DialogResult.OK)
            {
                _fileFullName = openFileDialog1.FileName;
                string[] temp = fileFullName.Split('\\');
                _fileName = temp[temp.Length - 1];
                string temstr=_fileFullName;
                _fileFolder = temstr.Remove(_fileFullName.Length - _fileName.Length-1);
            }
            textBox t = new textBox();
            t.setText(readTxtFile(_fileFullName, ""));
            if (!ishavePage)
            {
                TabPage page = new TabPage();
                page.Text = fileName;
                tabControl1.TabPages.Add(page);
                if (tabControl1.TabPages.Count!=0)
                {
                    for (int i = 0; i < tabControl1.TabPages.Count; i++)
                    {
                        if (tabControl1.TabPages[i].Text==fileName)
                        {
                            tabControl1.TabPages[i].Controls.Add(t);
                            tabControl1.TabPages[i].Controls[0].Dock = DockStyle.Fill;
                        }
                    }
                }
                ishavePage = true;
               
            }
            else
            {
                tabControl1.TabPages.Add(fileName);
                if (tabControl1.TabPages.Count != 0)
                {
                    for (int i = 0; i < tabControl1.TabPages.Count; i++)
                    {
                        if (tabControl1.TabPages[i].Text == fileName)
                        {
                            tabControl1.TabPages[i].Controls.Add(t);
                            tabControl1.TabPages[i].Controls[0].Dock = DockStyle.Fill;
                        }
                    }
                }
             
            }

        }
        public ArrayList readTxtFile(string path, string fgf)
        {
            if (!File.Exists(path))
            {
                Console.WriteLine("文件不存在！");
                Console.WriteLine("按回车键退出！");
                Console.ReadLine();
                return null;
            }
            try
            {
                StreamReader sr = new StreamReader(path, Encoding.GetEncoding("gb2312"));
                string l;
                ArrayList content = new ArrayList();
                while ((l = sr.ReadLine()) != null)
                {
                    content.Add(l);
                }
                sr.Close();
                content.TrimToSize();
                return content;
            }
            catch (IOException ex)
            {
                Console.WriteLine("读文件出错！请检查文件是否正确。");
                Console.WriteLine(ex.ToString());
                return null;
            }
        } 


    }
}
//这个是才窗体中控件
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Collections;

namespace TextReader
{
    public partial class textBox : UserControl
    {
        public textBox()
        {
            InitializeComponent();
        }

        public string fileName="";
        public string fileFolder = "";
        private void toolStripButton1_Click(object sender, EventArgs e)
        {
        }
        public void setText(ArrayList s)
        {
            for (int i = 0; i < s.Count; i++)
            {
                if (this.boxReport.Text.Length==0)
                {
                    boxReport.Text += s[i].ToString();
                }
                else
                {
                    boxReport.Text += Environment.NewLine + s[i].ToString();                
                }
            }
        }

        private void textBox_DragDrop(object sender, DragEventArgs e)
        {

        }

    }
}

由于经常使用记事本...然后到处都是....然后就写了个简陋的东西
方便浏览所有记事本

[kkun_3yue3]

帮你总结一下:
问题1:编历某目录下所有txt文件
问题2:读取某文件的内容
问题3:按照标示不同放到不同的数组里(标识不详)
问题4:根据约定取相应的数据(约定不详)


问题1代码

            string path = "C:\\360safebox";
            string[] fileInfo = Directory.GetFiles( path, "*.dat", SearchOption.AllDirectories );
            for( int i = 0 ; i < fileInfo.Length-1 ; i++ ) {
                textBox1.AppendText( fileInfo[ i ] + Environment.NewLine );
            }

问题2:读取某文件的内容

            string filename = "c:\\a.txt";
            using( FileStream fs = new FileStream( filename, FileMode.Open ) ) {
                byte[] con = new byte[ fs.Length ];
                fs.Read( con, 0, (int)fs.Length );
                textBox1.AppendText( Encoding.Unicode.GetString( con ) );
            }

问题3:按照标示不同放到不同的数组里(标识不详)
//
问题4:根据约定取相应的数据(约定不详)
//

[tyCode]

很好

[zgke]

这样?

private void button2_Click(object sender, EventArgs e)
{
string[] _FileList =System.IO.Directory.GetFiles(@"C:\Temp","*.TXT",System.IO.SearchOption.AllDirectories);

for(int i=0;i!=_FileList.Length;i++)
{
Test.LoadFile(_FileList[i]);
}

}


public class Test
{
public static IList<Class1> _POLYGON = new List<Class1>();

public static IList<Class1> _POINT = new List<Class1>();


public static void LoadFile(string p_File)
{
string[] _List = System.IO.File.ReadAllLines(p_File);

IList<Class1> _Add = _POLYGON;
for (int i = 0; i != _List.Length; i++)
{
switch (_List[i].ToUpper().Trim())
{
case "POLYGON":
_Add = _POLYGON;
break;
case "POINT":
_Add = _POINT;
break;
default:
_Add.Add(new Class1(_List[i]));
break;
}
}

}

public class Class1
{
private decimal m_X = 0;
private decimal m_Y = 0;
private decimal m_Z = 0;


public decimal X { get { return m_X; } set { m_X = value; } }
public decimal Y { get { return m_Y; } set { m_Y = value; } }
public decimal Z { get { return m_Z; } set { m_Z = value; } }

public Class1(string p_Value)
{
string[] _List =p_Value.Split(' ');

X=decimal.Parse(_List[0].Trim());
Y=decimal.Parse(_List[1].Trim());
Z=decimal.Parse(_List[2].Trim());
}

}
}

具体验效自己写把.