using System; using System.Collections.Generic; using System.Data.SqlClient; using System.Linq; using System.Threading.Tasks; using System.Windows.Forms; namespace InjectionSearch { static class Program { /// /// 应用程序的主入口点。 /// public static SqlConnection DBConn; //数据库连接串 public static string station; public static string StationID; public static string OperatorName; public static string IP; public static string Shift; //班次 public static string ProductDate; [STAThread] static void Main() { bool isRuned; System.Threading.Mutex mutex = new System.Threading.Mutex(true, "OnlyRunOneInstance", out isRuned); if (isRuned) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new FrmLogin()); mutex.ReleaseMutex(); } else { MessageBox.Show("程序已启动!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); } } } }