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👉实践过程
😜效果
😜代码
public partial class frmSplit : Form
{
public frmSplit()
{
InitializeComponent();
}
#region 分割文件
/// <summary>
/// 分割文件
/// </summary>
/// <param name="strFlag">分割单位</param>
/// <param name="intFlag">分割大小</param>
/// <param name="strPath">分割后的文件存放路径</param>
/// <param name="strFile">要分割的文件</param>
/// <param name="PBar">进度条显示</param>
public void SplitFile(string strFlag, int intFlag, string strPath, string strFile, ProgressBar PBar)
{
int iFileSize = 0;
//根据选择来设定分割的小文件的大小
switch (strFlag)
{
case "Byte":
iFileSize = intFlag;
break;
case "KB":
iFileSize = intFlag * 1024;
break;
case "MB":
iFileSize = intFlag * 1024 * 1024;
break;
case "GB":
iFileSize = intFlag * 1024 * 1024 * 1024;
break;
}
//以文件的全路径对应的字符串和文件打开模式来初始化FileStream文件流实例
FileStream SplitFileStream = new FileStream(strFile, FileMode.Open);
//以FileStream文件流来初始化BinaryReader文件阅读器
BinaryReader SplitFileReader = new BinaryReader(SplitFileStream);
//每次分割读取的最大数据
byte[] TempBytes;
//小文件总数
int iFileCount = (int)(SplitFileStream.Length / iFileSize);
PBar.Maximum = iFileCount;
if (SplitFileStream.Length % iFileSize != 0) iFileCount++;
string[] TempExtra = strFile.Split('.');
//循环将大文件分割成多个小文件
for (int i = 1; i <= iFileCount; i++)
{
//确定小文件的文件名称
string sTempFileName = strPath + @"\" + i.ToString().PadLeft(4, '0') + "." + TempExtra[TempExtra.Length - 1]; //小文件名
//根据文件名称和文件打开模式来初始化FileStream文件流实例
FileStream TempStream = new FileStream(sTempFileName, FileMode.OpenOrCreate);
//以FileStream实例来创建、初始化BinaryWriter书写器实例
BinaryWriter TempWriter = new BinaryWriter(TempStream);
//从大文件中读取指定大小数据
TempBytes = SplitFileReader.ReadBytes(iFileSize);
//把此数据写入小文件
TempWriter.Write(TempBytes);
//关闭书写器，形成小文件
TempWriter.Close();
//关闭文件流
TempStream.Close();
PBar.Value = i - 1;
}
//关闭大文件阅读器
SplitFileReader.Close();
SplitFileStream.Close();
MessageBox.Show("文件分割成功!");
}
#endregion
#region 合并文件
/// <summary>
/// 合并文件
/// </summary>
/// <param name="list">要合并的文件集合</param>
/// <param name="strPath">合并后的文件名称</param>
/// <param name="PBar">进度条显示</param>
public void CombinFile(string[] strFile, string strPath, ProgressBar PBar)
{
PBar.Maximum = strFile.Length;
FileStream AddStream = null;
//以合并后的文件名称和打开方式来创建、初始化FileStream文件流
AddStream = new FileStream(strPath, FileMode.Append);
//以FileStream文件流来初始化BinaryWriter书写器，此用以合并分割的文件
BinaryWriter AddWriter = new BinaryWriter(AddStream);
FileStream TempStream = null;
BinaryReader TempReader = null;
//循环合并小文件，并生成合并文件
for (int i = 0; i < strFile.Length; i++)
{
//以小文件所对应的文件名称和打开模式来初始化FileStream文件流，起读取分割作用
TempStream = new FileStream(strFile[i].ToString(), FileMode.Open);
TempReader = new BinaryReader(TempStream);
//读取分割文件中的数据，并生成合并后文件
AddWriter.Write(TempReader.ReadBytes((int)TempStream.Length));
//关闭BinaryReader文件阅读器
TempReader.Close();
//关闭FileStream文件流
TempStream.Close();
PBar.Value = i + 1;
}
//关闭BinaryWriter文件书写器
AddWriter.Close();
//关闭FileStream文件流
AddStream.Close();
MessageBox.Show("文件合并成功！");
}
#endregion
private void frmSplit_Load(object sender, EventArgs e)
{
timer1.Start();//启动计时器
}
//选择要分割的文件
private void btnSFile_Click(object sender, EventArgs e)
{
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
txtFile.Text = openFileDialog.FileName;
}
}
//执行文件分割操作
private void btnSplit_Click(object sender, EventArgs e)
{
try
{
if (txtLength.Text == ""||txtFile.Text.Trim()==""||txtPath.Text.Trim()=="")
{
MessageBox.Show("请将信息填写完整！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
txtLength.Focus();
}
else if (cboxUnit.Text == "")
{
MessageBox.Show("请选择要分割的文件单位！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
cboxUnit.Focus();
}
else
{
SplitFile(cboxUnit.Text, Convert.ToInt32(txtLength.Text.Trim()), txtPath.Text, txtFile.Text, progressBar);
}
}
catch { }
}
//选择分割后的文件存放路径
private void btnSPath_Click(object sender, EventArgs e)
{
if (folderBrowserDialog.ShowDialog() == DialogResult.OK)
{
txtPath.Text = folderBrowserDialog.SelectedPath;
}
}
//选择要合成的文件
private void btnCFile_Click(object sender, EventArgs e)
{
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
string Selectfile = "";
string[] files = openFileDialog.FileNames;
for (int i = 0; i < files.Length; i++)
{
Selectfile += "," + files[i].ToString();
}
if (Selectfile.StartsWith(","))
{
Selectfile = Selectfile.Substring(1);
}
if (Selectfile.EndsWith(","))
{
Selectfile.Remove(Selectfile.LastIndexOf(","),1);
}
txtCFile.Text = Selectfile;
}
}
//选择合成后的文件存放路径
private void btnCPath_Click(object sender, EventArgs e)
{
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
txtCPath.Text = saveFileDialog.FileName;
}
}
//执行合成文件操作
private void btnCombin_Click(object sender, EventArgs e)
{
try
{
if (txtCFile.Text.Trim() == "" || txtCPath.Text.Trim() == "")
{
MessageBox.Show("请将信息输入完整！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
if (txtCFile.Text.IndexOf(",") == -1)
MessageBox.Show("请选择要合成的文件，最少为两个！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
else
{
string[] strFiles = txtCFile.Text.Split(',');
CombinFile(strFiles, txtCPath.Text, progressBar);
}
}
}
catch { }
}
//监视“分割”/“合并”按钮的可用状态
private void timer1_Tick(object sender, EventArgs e)
{
if (txtFile.Text != "" && txtPath.Text != "")
btnSplit.Enabled = true;
else
btnSplit.Enabled = false;
if (txtCFile.Text != "" && txtCPath.Text != "")
btnCombin.Enabled = true;
else
btnCombin.Enabled = false;
}
}
partial class frmSplit
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要
/// 使用代码编辑器修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.tabControl1 = new System.Windows.Forms.TabControl();
this.tabPage1 = new System.Windows.Forms.TabPage();
this.txtPath = new System.Windows.Forms.TextBox();
this.txtLength = new System.Windows.Forms.TextBox();
this.btnSPath = new System.Windows.Forms.Button();
this.label3 = new System.Windows.Forms.Label();
this.cboxUnit = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.btnSplit = new System.Windows.Forms.Button();
this.btnSFile = new System.Windows.Forms.Button();
this.txtFile = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.tabPage2 = new System.Windows.Forms.TabPage();
this.txtCPath = new System.Windows.Forms.TextBox();
this.txtCFile = new System.Windows.Forms.TextBox();
this.label5 = new System.Windows.Forms.Label();
this.btnCPath = new System.Windows.Forms.Button();
this.btnCombin = new System.Windows.Forms.Button();
this.btnCFile = new System.Windows.Forms.Button();
this.label4 = new System.Windows.Forms.Label();
this.openFileDialog = new System.Windows.Forms.OpenFileDialog();
this.folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.saveFileDialog = new System.Windows.Forms.SaveFileDialog();
this.progressBar = new System.Windows.Forms.ProgressBar();
this.tabControl1.SuspendLayout();
this.tabPage1.SuspendLayout();
this.tabPage2.SuspendLayout();
this.SuspendLayout();
//
// tabControl1
//
this.tabControl1.Controls.Add(this.tabPage1);
this.tabControl1.Controls.Add(this.tabPage2);
this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tabControl1.Location = new System.Drawing.Point(0, 0);
this.tabControl1.Name = "tabControl1";
this.tabControl1.SelectedIndex = 0;
this.tabControl1.Size = new System.Drawing.Size(354, 201);
this.tabControl1.TabIndex = 0;
//
// tabPage1
//
this.tabPage1.Controls.Add(this.txtPath);
this.tabPage1.Controls.Add(this.txtLength);
this.tabPage1.Controls.Add(this.btnSPath);
this.tabPage1.Controls.Add(this.label3);
this.tabPage1.Controls.Add(this.cboxUnit);
this.tabPage1.Controls.Add(this.label2);
this.tabPage1.Controls.Add(this.btnSplit);
this.tabPage1.Controls.Add(this.btnSFile);
this.tabPage1.Controls.Add(this.txtFile);
this.tabPage1.Controls.Add(this.label1);
this.tabPage1.Location = new System.Drawing.Point(4, 21);
this.tabPage1.Name = "tabPage1";
this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
this.tabPage1.Size = new System.Drawing.Size(346, 176);
this.tabPage1.TabIndex = 0;
this.tabPage1.Text = "文件分割";
this.tabPage1.UseVisualStyleBackColor = true;
//
// txtPath
//
this.txtPath.Location = new System.Drawing.Point(37, 117);
this.txtPath.Name = "txtPath";
this.txtPath.Size = new System.Drawing.Size(256, 21);
this.txtPath.TabIndex = 10;
//
// txtLength
//
this.txtLength.Location = new System.Drawing.Point(37, 72);
this.txtLength.Name = "txtLength";
this.txtLength.Size = new System.Drawing.Size(146, 21);
this.txtLength.TabIndex = 9;
//
// btnSPath
//
this.btnSPath.Location = new System.Drawing.Point(299, 115);
this.btnSPath.Name = "btnSPath";
this.btnSPath.Size = new System.Drawing.Size(37, 23);
this.btnSPath.TabIndex = 8;
this.btnSPath.Text = "<<";
this.btnSPath.UseVisualStyleBackColor = true;
this.btnSPath.Click += new System.EventHandler(this.btnSPath_Click);
//
// label3
//
this.label3.AutoSize = true;
this.label3.Location = new System.Drawing.Point(12, 100);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(137, 12);
this.label3.TabIndex = 7;
this.label3.Text = "选择分割后文件存放路径";
//
// cboxUnit
//
this.cboxUnit.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.cboxUnit.FormattingEnabled = true;
this.cboxUnit.Items.AddRange(new object[] {
"Byte",
"KB",
"MB",
"GB"});
this.cboxUnit.Location = new System.Drawing.Point(189, 73);
this.cboxUnit.Name = "cboxUnit";
this.cboxUnit.Size = new System.Drawing.Size(63, 20);
this.cboxUnit.TabIndex = 6;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(12, 55);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(101, 12);
this.label2.TabIndex = 5;
this.label2.Text = "设置分割文件大小";
//
// btnSplit
//
this.btnSplit.Location = new System.Drawing.Point(261, 26);
this.btnSplit.Name = "btnSplit";
this.btnSplit.Size = new System.Drawing.Size(75, 23);
this.btnSplit.TabIndex = 3;
this.btnSplit.Text = "分割";
this.btnSplit.UseVisualStyleBackColor = true;
this.btnSplit.Click += new System.EventHandler(this.btnSplit_Click);
//
// btnSFile
//
this.btnSFile.Location = new System.Drawing.Point(220, 26);
this.btnSFile.Name = "btnSFile";
this.btnSFile.Size = new System.Drawing.Size(40, 23);
this.btnSFile.TabIndex = 2;
this.btnSFile.Text = "<<";
this.btnSFile.UseVisualStyleBackColor = true;
this.btnSFile.Click += new System.EventHandler(this.btnSFile_Click);
//
// txtFile
//
this.txtFile.Location = new System.Drawing.Point(37, 27);
this.txtFile.Name = "txtFile";
this.txtFile.Size = new System.Drawing.Size(179, 21);
this.txtFile.TabIndex = 1;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(12, 10);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(113, 12);
this.label1.TabIndex = 0;
this.label1.Text = "请选择要分割的文件";
//
// tabPage2
//
this.tabPage2.Controls.Add(this.txtCPath);
this.tabPage2.Controls.Add(this.txtCFile);
this.tabPage2.Controls.Add(this.label5);
this.tabPage2.Controls.Add(this.btnCPath);
this.tabPage2.Controls.Add(this.btnCombin);
this.tabPage2.Controls.Add(this.btnCFile);
this.tabPage2.Controls.Add(this.label4);
this.tabPage2.Location = new System.Drawing.Point(4, 21);
this.tabPage2.Name = "tabPage2";
this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
this.tabPage2.Size = new System.Drawing.Size(346, 176);
this.tabPage2.TabIndex = 1;
this.tabPage2.Text = "文件合成";
this.tabPage2.UseVisualStyleBackColor = true;
//
// txtCPath
//
this.txtCPath.Location = new System.Drawing.Point(37, 88);
this.txtCPath.Name = "txtCPath";
this.txtCPath.Size = new System.Drawing.Size(256, 21);
this.txtCPath.TabIndex = 6;
//
// txtCFile
//
this.txtCFile.Location = new System.Drawing.Point(37, 44);
this.txtCFile.Name = "txtCFile";
this.txtCFile.Size = new System.Drawing.Size(174, 21);
this.txtCFile.TabIndex = 5;
//
// label5
//
this.label5.AutoSize = true;
this.label5.Location = new System.Drawing.Point(11, 72);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(173, 12);
this.label5.TabIndex = 4;
this.label5.Text = "选择合并后文件存放路径及名称";
//
// btnCPath
//
this.btnCPath.Location = new System.Drawing.Point(299, 87);
this.btnCPath.Name = "btnCPath";
this.btnCPath.Size = new System.Drawing.Size(38, 23);
this.btnCPath.TabIndex = 3;
this.btnCPath.Text = "<<";
this.btnCPath.UseVisualStyleBackColor = true;
this.btnCPath.Click += new System.EventHandler(this.btnCPath_Click);
//
// btnCombin
//
this.btnCombin.Location = new System.Drawing.Point(262, 44);
this.btnCombin.Name = "btnCombin";
this.btnCombin.Size = new System.Drawing.Size(75, 23);
this.btnCombin.TabIndex = 2;
this.btnCombin.Text = "合并";
this.btnCombin.UseVisualStyleBackColor = true;
this.btnCombin.Click += new System.EventHandler(this.btnCombin_Click);
//
// btnCFile
//
this.btnCFile.Location = new System.Drawing.Point(217, 44);
this.btnCFile.Name = "btnCFile";
this.btnCFile.Size = new System.Drawing.Size(39, 23);
this.btnCFile.TabIndex = 1;
this.btnCFile.Text = "<<";
this.btnCFile.UseVisualStyleBackColor = true;
this.btnCFile.Click += new System.EventHandler(this.btnCFile_Click);
//
// label4
//
this.label4.AutoSize = true;
this.label4.Location = new System.Drawing.Point(11, 28);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(101, 12);
this.label4.TabIndex = 0;
this.label4.Text = "选择要合成的文件";
//
// openFileDialog
//
this.openFileDialog.Multiselect = true;
//
// timer1
//
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// progressBar
//
this.progressBar.Dock = System.Windows.Forms.DockStyle.Bottom;
this.progressBar.Location = new System.Drawing.Point(0, 181);
this.progressBar.Name = "progressBar";
this.progressBar.Size = new System.Drawing.Size(354, 20);
this.progressBar.TabIndex = 1;
//
// frmSplit
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(354, 201);
this.Controls.Add(this.progressBar);
this.Controls.Add(this.tabControl1);
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "frmSplit";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "文件分割与合成";
this.Load += new System.EventHandler(this.frmSplit_Load);
this.tabControl1.ResumeLayout(false);
this.tabPage1.ResumeLayout(false);
this.tabPage1.PerformLayout();
this.tabPage2.ResumeLayout(false);
this.tabPage2.PerformLayout();
this.ResumeLayout(false);
}
#endregion
public System.Windows.Forms.TabControl tabControl1;
private System.Windows.Forms.TabPage tabPage1;
private System.Windows.Forms.TextBox txtFile;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TabPage tabPage2;
private System.Windows.Forms.TextBox txtPath;
private System.Windows.Forms.TextBox txtLength;
private System.Windows.Forms.Button btnSPath;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.ComboBox cboxUnit;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Button btnSplit;
private System.Windows.Forms.Button btnSFile;
private System.Windows.Forms.OpenFileDialog openFileDialog;
private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog;
private System.Windows.Forms.TextBox txtCPath;
private System.Windows.Forms.TextBox txtCFile;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Button btnCPath;
private System.Windows.Forms.Button btnCombin;
private System.Windows.Forms.Button btnCFile;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.SaveFileDialog saveFileDialog;
private System.Windows.Forms.ProgressBar progressBar;
}
需要的再直接Call我，直接发。
👉其他
📢作者：小空和小芝中的小空
📢转载说明-务必注明来源：https://zhima.blog.csdn.net/
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