C# 程序，实现二进制文件十六进制查看器，支持按行定位

主窗体代码 (Form1.cs)

using System; using System.IO; using System.Text; using System.Windows.Forms; namespace HexViewer { public partial class Form1 : Form { private byte[] fileData; private int bytesPerLine = 16; private int currentPosition = 0; private int totalLines = 0; // 控件声明 private MenuStrip menuStrip; private ToolStripMenuItem fileMenu; private ToolStripMenuItem openMenuItem; private ToolStripMenuItem exitMenuItem; private ToolStripMenuItem viewMenu; private ToolStripMenuItem bytesPerLineMenu; private ToolStripMenuItem bytes8MenuItem; private ToolStripMenuItem bytes16MenuItem; private ToolStripMenuItem bytes32MenuItem; private RichTextBox hexRichTextBox; private TextBox lineNumberTextBox; private Button goToButton; private Label statusLabel; private Panel topPanel; private Label lineLabel; private OpenFileDialog openFileDialog; public Form1() { InitializeComponent(); InitializeCustomComponents(); } private void InitializeCustomComponents() { // 窗体设置 this.Text = "十六进制文件查看器"; this.Size = new System.Drawing.Size(1000, 700); this.StartPosition = FormStartPosition.CenterScreen; // 菜单栏 menuStrip = new MenuStrip(); fileMenu = new ToolStripMenuItem("文件"); openMenuItem = new ToolStripMenuItem("打开", null, OpenFile_Click); openMenuItem.ShortcutKeys = Keys.Control | Keys.O; exitMenuItem = new ToolStripMenuItem("退出", null, (s, e) => Application.Exit()); fileMenu.DropDownItems.Add(openMenuItem); fileMenu.DropDownItems.Add(new ToolStripSeparator()); fileMenu.DropDownItems.Add(exitMenuItem); viewMenu = new ToolStripMenuItem("查看"); bytesPerLineMenu = new ToolStripMenuItem("每行字节数"); bytes8MenuItem = new ToolStripMenuItem("8 字节", null, (s, e) => SetBytesPerLine(8)); bytes16MenuItem = new ToolStripMenuItem("16 字节", null, (s, e) => SetBytesPerLine(16)); bytes32MenuItem = new ToolStripMenuItem("32 字节", null, (s, e) => SetBytesPerLine(32)); bytes16MenuItem.Checked = true; bytesPerLineMenu.DropDownItems.Add(bytes8MenuItem); bytesPerLineMenu.DropDownItems.Add(bytes16MenuItem); bytesPerLineMenu.DropDownItems.Add(bytes32MenuItem); viewMenu.DropDownItems.Add(bytesPerLineMenu); menuStrip.Items.Add(fileMenu); menuStrip.Items.Add(viewMenu); // 顶部面板 topPanel = new Panel(); topPanel.Dock = DockStyle.Top; topPanel.Height = 40; topPanel.Padding = new Padding(5); lineLabel = new Label(); lineLabel.Text = "跳转到行:"; lineLabel.Location = new System.Drawing.Point(5, 10); lineLabel.Size = new System.Drawing.Size(70, 25); lineNumberTextBox = new TextBox(); lineNumberTextBox.Location = new System.Drawing.Point(80, 8); lineNumberTextBox.Size = new System.Drawing.Size(100, 25); lineNumberTextBox.KeyPress += LineNumberTextBox_KeyPress; goToButton = new Button(); goToButton.Text = "跳转"; goToButton.Location = new System.Drawing.Point(190, 7); goToButton.Size = new System.Drawing.Size(75, 28); goToButton.Click += GoToButton_Click; topPanel.Controls.Add(lineLabel); topPanel.Controls.Add(lineNumberTextBox); topPanel.Controls.Add(goToButton); // 十六进制显示区域 hexRichTextBox = new RichTextBox(); hexRichTextBox.Dock = DockStyle.Fill; hexRichTextBox.Font = new System.Drawing.Font("Consolas", 10f); hexRichTextBox.WordWrap = false; hexRichTextBox.KeyDown += HexRichTextBox_KeyDown; // 状态栏 statusLabel = new Label(); statusLabel.Dock = DockStyle.Bottom; statusLabel.Height = 25; statusLabel.Text = "就绪 - 使用 Ctrl+O 打开文件"; statusLabel.Padding = new Padding(5, 0, 0, 0); // 添加控件 this.Controls.Add(hexRichTextBox); this.Controls.Add(topPanel); this.Controls.Add(statusLabel); this.Controls.Add(menuStrip); this.MainMenuStrip = menuStrip; // 文件对话框 openFileDialog = new OpenFileDialog(); openFileDialog.Title = "选择二进制文件"; openFileDialog.Filter = "所有文件 (*.*)|*.*"; } private void SetBytesPerLine(int bytes) { bytesPerLine = bytes; bytes8MenuItem.Checked = (bytes == 8); bytes16MenuItem.Checked = (bytes == 16); bytes32MenuItem.Checked = (bytes == 32); if (fileData != null) { DisplayHexData(currentPosition); } } private void OpenFile_Click(object sender, EventArgs e) { if (openFileDialog.ShowDialog() == DialogResult.OK) { try { fileData = File.ReadAllBytes(openFileDialog.FileName); currentPosition = 0; totalLines = (fileData.Length + bytesPerLine - 1) / bytesPerLine; DisplayHexData(0); statusLabel.Text = $"已加载: {openFileDialog.FileName} | 大小: {fileData.Length:N0} 字节 | 总行数: {totalLines:N0}"; this.Text = $"十六进制文件查看器 - {Path.GetFileName(openFileDialog.FileName)}"; lineNumberTextBox.Text = "1"; } catch (Exception ex) { MessageBox.Show($"打开文件失败: {ex.Message}", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error); } } } private void DisplayHexData(int startPosition) { if (fileData == null || fileData.Length == 0) { hexRichTextBox.Text = ""; return; } // 确保起始位置有效 if (startPosition < 0) startPosition = 0; if (startPosition >= fileData.Length) startPosition = fileData.Length - 1; // 计算从哪一行开始显示 int startLine = startPosition / bytesPerLine; int startOffset = startLine * bytesPerLine; // 计算显示的行数（基于窗口高度） int linesToShow = (hexRichTextBox.Height / 20) + 2; // 估算每行高度 if (linesToShow < 20) linesToShow = 30; StringBuilder sb = new StringBuilder(); for (int i = 0; i < linesToShow; i++) { int offset = startOffset + i * bytesPerLine; if (offset >= fileData.Length) break; // 行号 (8位十六进制) sb.Append(offset.ToString("X8")); sb.Append(" "); // 十六进制部分 int bytesInThisLine = Math.Min(bytesPerLine, fileData.Length - offset); for (int j = 0; j < bytesPerLine; j++) { if (j < bytesInThisLine) { sb.Append(fileData[offset + j].ToString("X2")); } else { sb.Append(" "); } if (j == bytesPerLine / 2 - 1) sb.Append(" "); // 中间分隔 else sb.Append(" "); } sb.Append(" "); // ASCII 部分 for (int j = 0; j < bytesInThisLine; j++) { byte b = fileData[offset + j]; char c = (b >= 32 && b <= 126) ? (char)b : '.'; sb.Append(c); } sb.AppendLine(); } hexRichTextBox.Text = sb.ToString(); // 高亮当前光标所在行 HighlightCurrentLine(); currentPosition = startOffset; UpdateStatus(); } private void HighlightCurrentLine() { if (hexRichTextBox.Text.Length == 0) return; int currentLine = currentPosition / bytesPerLine; // 简单的行高亮：通过选择行文本 int startIndex = 0; for (int i = 0; i < currentLine; i++) { startIndex = hexRichTextBox.Text.IndexOf('\n', startIndex) + 1; if (startIndex <= 0) return; } int endIndex = hexRichTextBox.Text.IndexOf('\n', startIndex); if (endIndex == -1) endIndex = hexRichTextBox.Text.Length; hexRichTextBox.SelectionStart = startIndex; hexRichTextBox.SelectionLength = endIndex - startIndex; hexRichTextBox.SelectionBackColor = System.Drawing.Color.LightYellow; // 滚动到可见位置 hexRichTextBox.ScrollToCaret(); } private void GoToLine(int lineNumber) { if (fileData == null) { MessageBox.Show("请先打开文件", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); return; } if (lineNumber < 1 || lineNumber > totalLines) { MessageBox.Show($"行号必须在 1 到 {totalLines} 之间", "无效行号", MessageBoxButtons.OK, MessageBoxIcon.Warning); return; } int newPosition = (lineNumber - 1) * bytesPerLine; if (newPosition >= fileData.Length) newPosition = fileData.Length - 1; currentPosition = newPosition; DisplayHexData(currentPosition); lineNumberTextBox.Text = lineNumber.ToString(); } private void GoToOffset(int offset) { if (fileData == null) return; if (offset < 0) offset = 0; if (offset >= fileData.Length) offset = fileData.Length - 1; currentPosition = offset; DisplayHexData(currentPosition); lineNumberTextBox.Text = ((currentPosition / bytesPerLine) + 1).ToString(); } private void UpdateStatus() { if (fileData != null) { int currentLine = currentPosition / bytesPerLine + 1; int currentByte = currentPosition; statusLabel.Text = $"行: {currentLine:N0} / {totalLines:N0} | " + $"偏移: 0x{currentPosition:X8} ({currentPosition:N0}) | " + $"字节: {currentByte + 1} / {fileData.Length:N0}"; } } private void GoToButton_Click(object sender, EventArgs e) { if (int.TryParse(lineNumberTextBox.Text, out int lineNumber)) { GoToLine(lineNumber); } else { // 尝试解析为十六进制偏移 string input = lineNumberTextBox.Text.Trim(); if (input.StartsWith("0x", StringComparison.OrdinalIgnoreCase)) { if (int.TryParse(input.Substring(2), System.Globalization.NumberStyles.HexNumber, null, out int offset)) { GoToOffset(offset); return; } } else if (int.TryParse(input, System.Globalization.NumberStyles.HexNumber, null, out int hexOffset)) { GoToOffset(hexOffset); return; } MessageBox.Show("请输入有效的行号 (1-" + totalLines + ") 或十六进制偏移 (如 0x100)", "无效输入", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } private void LineNumberTextBox_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar == (char)Keys.Enter) { GoToButton_Click(sender, e); e.Handled = true; } } private void HexRichTextBox_KeyDown(object sender, KeyEventArgs e) { if (fileData == null) return; int currentLine = currentPosition / bytesPerLine; switch (e.KeyCode) { case Keys.Up: if (currentLine > 0) { GoToLine(currentLine); } e.Handled = true; break; case Keys.Down: if (currentLine < totalLines - 1) { GoToLine(currentLine + 2); } e.Handled = true; break; case Keys.PageUp: int pageLines = (hexRichTextBox.Height / 20); int newLine = Math.Max(0, currentLine - pageLines); GoToLine(newLine + 1); e.Handled = true; break; case Keys.PageDown: pageLines = (hexRichTextBox.Height / 20); newLine = Math.Min(totalLines - 1, currentLine + pageLines); GoToLine(newLine + 1); e.Handled = true; break; case Keys.Home: GoToLine(1); e.Handled = true; break; case Keys.End: GoToLine(totalLines); e.Handled = true; break; } } protected override void OnResize(EventArgs e) { base.OnResize(e); if (fileData != null) { DisplayHexData(currentPosition); } } } }

入口点代码 (Program.cs)

using System; using System.Windows.Forms; namespace HexViewer { static class Program { [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } } }

功能说明

运行界面