C#txt文本分割器
2024-10-21 15:48:52
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;//openfiledialog
using System.IO;//文本处理 namespace CutTxt
{
public partial class mainForm : Form
{
string fileLocation = "";//文件的位置
long fileLenth = 0;//文件的大小（字节）
int fileLines = 0;//文本内容的行数
int setLines = 0;//自定义的行
int page = 0;//分割的页数 public mainForm()
{
InitializeComponent();
} //浏览按钮的事件
private void bt_browseFile_Click(object sender, EventArgs e)
{ OpenFileDialog open1 = new OpenFileDialog();
open1.InitialDirectory = "C:\\";
open1.Filter = "文本文件 (*.txt)|*.txt|All files (*.*)|*.*";
open1.FilterIndex = 1;
open1.RestoreDirectory = false; if (open1.ShowDialog() == DialogResult.OK)
{
fileLocation = open1.FileName;
tb_fileLocation.Text = fileLocation;
tb_lineNumber.Enabled = true;
tb_lineNumber.Text = "";
fileLines = getTxtProperty(tb_fileLocation.Text);
//获取文件大小
FileInfo file1 = new FileInfo(tb_fileLocation.Text);
fileLenth = file1.Length;
lb_txtProperty.Text = "文章段落数：【" + fileLines.ToString()+ "】 段，" + "文件大小：【" + fileLenth.ToString() + " 】字节。"; } } //分割按钮的事件
private void bt_cutFiles_Click(object sender, EventArgs e)
{
if (tb_fileLocation.Text == "")
{
MessageBox.Show("请指定文件路径！");
}
else if (tb_lineNumber.Text == "")
{
MessageBox.Show("请设置分割的行数！");
}
else
{
cutTxt(fileLocation, int.Parse(tb_lineNumber.Text));
}
} //得到行数
public int getTxtProperty(string fileLocation)
{
StreamReader sr = new StreamReader(fileLocation); string aa = "";
int bb = 0;
while ((aa = sr.ReadLine()) != null)
{
bb++;
}
return bb;
} //开始分割
public void cutTxt(string fileLocation, int lineNumbers)
{
string [] recordLine = new string[fileLines];//定义行数大小的数组
int ii = 0;
string tmpLine = ""; StreamReader sr = new StreamReader(fileLocation,Encoding.GetEncoding("gb2312"));
while ((tmpLine = sr.ReadLine()) != null)
{
recordLine[ii] = tmpLine;
ii++;
}
//开始处理分割
int curLine = 0;//工作行
int curPage=0;//当前工作篇
for (int p = 0; p < page-1; p++)//先写前n篇，最后一篇单独写
{
StreamWriter sw = new StreamWriter("Xiangjun"+p+".txt", true, Encoding.GetEncoding("gb2312"));
for (int j = curLine; j < curLine+setLines; j++)
{
sw.Write(recordLine[j]);
sw.Write("\r\n");//写完一行后换行
}
sw.Flush();
sw.Close();
curLine += setLines;
curPage=p;
//MessageBox.Show("当前索引：" + curLine+"当前page值："+curPage);
}
//写最后一篇
StreamWriter sw_Last = new StreamWriter("Xiangjun" + (curPage+1) + ".txt", true, Encoding.GetEncoding("gb2312"));
for (int j = curLine; j < fileLines; j++)
{
sw_Last.Write(recordLine[j]);
sw_Last.Write("\r\n");//写完一行后换行
//MessageBox.Show("当前索引：" + j);
}
sw_Last.Flush();
sw_Last.Close();
MessageBox.Show("分割成功！"); } //当设置的行数更改时，记录其数值
//设置文本框失效事件，在form1.Designer.cs中
private void tb_lineNumber_LostFocus(object sender, EventArgs e)
{
//定义未使用
} private void tb_lineNumber_TextChanged(object sender, EventArgs e)
{
setLines = int.Parse(tb_lineNumber.Text);
if (setLines != 0)
{
page = (fileLines / setLines) + 1;//获取篇数
lb_pageNum.Text = "您设置了【" + setLines + "】段为一页，预计将产生【" + page + "】个文件。";
}
else
{
lb_pageNum.Text = "无法设置0个段落！";
} } private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
System.Diagnostics.Process.Start("mailto:liuxiangjun@188.com");
} }
}
实验要求：
1. 能进行文件分割
2. 分割块大小由用户输入决定
3. 能进行文件合并
4. 文件分割与合并过程用线程来实现
5. 数据缓冲区不得超过2K
6. 要有处理进度显示
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.IO;
using System.Threading; namespace WindowsFormsApplication1
{
public partial class 文件分割器1 : Form
{
//时间：2012-9-6
//作者：Olive
//功能：实现大文件的分割、合并
#region Members
int count1,count,fgkDaXiao;
FileInfo fFenGe,fHeBing;
FileStream fStream,hStream;
string fenGeLuJing,heBingLuJing;
int value = 0;
#endregion #region Methods
public 文件分割器1()
{
InitializeComponent();
skinEngine1.SkinFile = "WarmColor1.ssk";
} /// <summary>
/// 选择要分割的文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnfgwenjian_Click(object sender, EventArgs e)
{
try
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fFenGe = new FileInfo(openFileDialog1.FileName);
txtfenge.Text = fFenGe.FullName; fenGeLuJing = fFenGe.FullName.Substring(0, fFenGe.FullName.Length - openFileDialog1.SafeFileName.Length);
txtwjdaxiao.Text = ((int)fFenGe.Length/1024).ToString();
fStream = new FileStream(fFenGe.FullName, FileMode.Open, FileAccess.Read);
}
}
catch
{
MessageBox.Show("文件分割异常，请检查确认无误后再次分割！");
} }
/// <summary>
/// 选择要保存的路径，如果不选默认为与原文件同路径
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnfglujing_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(txtfgkdaxiao.Text))
{
MessageBox.Show("请输入文件分割块大小！");
}
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
txtfglujing.Text= folderBrowserDialog1.SelectedPath;
fenGeLuJing = folderBrowserDialog1.SelectedPath+"\\";
}
}
/// <summary>
/// 分割文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnfenge_Click(object sender, EventArgs e)
{
try
{
int wenJianLength = Convert.ToInt32(txtwjdaxiao.Text); if (wenJianLength % fgkDaXiao == 0)
{
count = wenJianLength / fgkDaXiao;
}
else
{
count = wenJianLength / fgkDaXiao + 1;
}
for (int i = 0; i < count; i++)
{
Thread thread = new Thread(new ParameterizedThreadStart(FenGe));
thread.Start(i);
}
MessageBox.Show("文件分割完毕");
}
catch
{
MessageBox.Show("分割异常，请确认操作！");
}
}
/// <summary>
/// 分割线程调用函数
/// </summary>
/// <param name="i"></param>
public void FenGe(object i)
{ try
{
using (FileStream fgstream = new FileStream(fenGeLuJing + fFenGe.Name.Substring(0, fFenGe.Name.Length - fFenGe.Extension.Length) + i + fFenGe.Extension, FileMode.OpenOrCreate, FileAccess.Write))
{
byte[] buffer = new byte[fgkDaXiao * 1024];
int data = 0;
if ((data = fStream.Read(buffer, 0, buffer.Length)) > 0)
{
BinaryWriter bWriter = new BinaryWriter(fgstream, Encoding.Default);
bWriter.Write(buffer, 0, data);
value=(int)i/count*100;
progressBar1.Value = value;
} }
}
catch
{
MessageBox.Show("文件打开异常！");
} }
/// <summary>
/// 输入值变化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void txtfgkdaxiao_TextChanged(object sender, EventArgs e)
{
if (txtfgkdaxiao.Text.Length > 0)
{
fgkDaXiao = Convert.ToInt32(txtfgkdaxiao.Text);
}
}
/// <summary>
/// 选择要合并的文件，首个分割文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnhbwenjian_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
fHeBing = new FileInfo(openFileDialog1.FileName);
txthebing.Text = fHeBing.FullName;
heBingLuJing = fHeBing.FullName.Substring(0, fHeBing.FullName.Length - openFileDialog1.SafeFileName.Length) + "\\";
}
}
/// <summary>
/// 选择合并后的文件的保存路径
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnhebinglujing_Click(object sender, EventArgs e)
{
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
heBingLuJing = folderBrowserDialog1.SelectedPath + "\\";
}
}
/// <summary>
/// 合并文件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
try
{
if (count1 > 0)
{
using (hStream = new FileStream(heBingLuJing + fHeBing.Name.Substring(0, fHeBing.Name.Length - fHeBing.Extension.Length - 1) + fHeBing.Extension, FileMode.OpenOrCreate, FileAccess.Write))
{
for (int i = 0; i < count1; i++)
{
Thread thread = new Thread(new ParameterizedThreadStart(HeBing));
thread.Start(i);
} MessageBox.Show("合并完成");
}
}
else
{
MessageBox.Show("请输入合并文件数目");
}
}
catch
{
MessageBox.Show("合并异常，请重新合并");
}
}
/// <summary>
/// 求要合并的文件数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void txthbkuaishu_TextChanged(object sender, EventArgs e)
{
count1 = Convert.ToInt32(txthbkuaishu.Text);
}
/// <summary>
/// 合并线程调用的合并函数，执行文件合并
/// </summary>
/// <param name="i"></param>
public void HeBing(object i)
{
using (FileStream readStream = new FileStream(fHeBing.FullName.Substring(0, fHeBing.FullName.Length - fHeBing.Extension.Length- 1) + i + fHeBing.Extension, FileMode.Open, FileAccess.Read))
{
byte[] buffer = new byte[readStream.Length];
int data = 0;
if ((data = readStream.Read(buffer, 0, buffer.Length)) > 0)
{
BinaryWriter binary = new BinaryWriter(hStream, Encoding.Default);
binary.Write(buffer, 0, data);
}
}
}
#endregion
}
} 本文主要用到了FileStream、FileInfo类、BinaryWriter、StreamReader、StreamWriter等常用文件操作类，而且还用到了线程的知识，如果有不懂的地方，希望可以和我交流，共同学习进步
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