1、Winform启动的时候，检测是否存在同样的进程名，防止程序多开；
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Process[] processes = Process.GetProcesses();
Process currentProcess = Process.GetCurrentProcess();
bool processExist = false;
foreach (Process p in processes)
{
if (p.ProcessName == currentProcess.ProcessName && p.Id != currentProcess.Id)
{
processExist = true;
}
} if (processExist)
{
Application.Exit();
}
else
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
string processName = Process.GetCurrentProcess().ProcessName;
Process[] processes = Process.GetProcessesByName(processName);
//如果该数组长度大于1，说明多次运行
if (processes.Length > )
{
MessageBox.Show("程序已运行，不能再次打开！");
Environment.Exit();
}
else
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}
2、利用Mutex互斥对象防止程序多开；
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
bool isAppRunning = false;
Mutex mutex = new Mutex(true, System.Diagnostics.Process.GetCurrentProcess().ProcessName, out isAppRunning);
if (!isAppRunning)
{
MessageBox.Show("程序已运行，不能再次打开！");
Environment.Exit();
}
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
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