using System; using System.Diagnostics; using System.Drawing; using System.IO; using ZXing; using ZXing.Common; using System.Runtime.InteropServices; using System.Threading; using System.Xml; namespace QRCodeGenerator { class Program { [DllImport("user32.dll")] private static extern bool SetForegroundWindow(IntPtr hWnd); [DllImport("kernel32.dll")] private static extern IntPtr GetConsoleWindow(); [DllImport("user32.dll")] private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow); static void Main(string[] args) { var handle = GetConsoleWindow(); ShowWindow(handle, 0); // 0 = SW_HIDE //// 检查参数有效性 //if (args.Length == 0 || string.IsNullOrWhiteSpace(args[0])) //{ // Console.WriteLine("错误：请提供序列号参数"); // Console.WriteLine("示例：QRApp.exe ABC123"); // return; //} string serialNumber = "12019977H"; string tempImagePath = Path.Combine(Path.GetTempPath(), $"{Guid.NewGuid()}.png"); try { // 生成二维码 GenerateQRCode(serialNumber, tempImagePath); // 显示二维码 Process imageViewer = ShowQRCode(tempImagePath); Thread.Sleep(2000); ForceFocusConsole(); Console.WriteLine("按 空格 或 Enter 关闭二维码..."); // 等待用户输入 WaitForExitKey(); // 关闭图片查看器 CloseImageViewer(imageViewer); } finally { // 清理临时文件 if (File.Exists(tempImagePath)) { File.Delete(tempImagePath); } } } static void GenerateQRCode(string content, string filePath) { var writer = new BarcodeWriter { Format = BarcodeFormat.QR_CODE, Options = new EncodingOptions { Width = 500, Height = 500, Margin = 2 } }; using (Bitmap bitmap = writer.Write(content)) { bitmap.Save(filePath, System.Drawing.Imaging.ImageFormat.Png); } } static Process ShowQRCode(string imagePath) { ProcessStartInfo startInfo = new ProcessStartInfo { FileName = imagePath, UseShellExecute = true }; return Process.Start(startInfo); } // 专用焦点控制方法 static void ForceFocusConsole() { IntPtr consoleHandle = GetConsoleWindow(); SetForegroundWindow(consoleHandle); Console.CursorVisible = true; // 确保光标可见 Console.SetCursorPosition(0, Console.CursorTop + 1); // 移动光标位置 IntPtr handle = GetConsoleWindow(); ShowWindow(handle, 2); } static void WaitForExitKey() { ConsoleKeyInfo key; do { key = Console.ReadKey(true); } while (key.Key != ConsoleKey.Spacebar && key.Key != ConsoleKey.Enter); } static void CloseImageViewer(Process process) { try { if (!process.HasExited) { // Windows系统关闭图片查看器 if (Environment.OSVersion.Platform == PlatformID.Win32NT) { Process.Start(new ProcessStartInfo { FileName = "taskkill", Arguments = $"/IM {Path.GetFileName(process.MainModule.FileName)} /F", CreateNoWindow = true, WindowStyle = ProcessWindowStyle.Hidden }); } else { process.Kill(); } } } catch { // 忽略关闭进程时的异常 } //finally //{ // process.Dispose(); //} } } }把上述代码换成Windows Forms开发