控制台——防止程序重复启动

循环当前所有进程，判断是否存在进程名称一致并且进程Id也一致的情况，如果存在就结束当前进程。

public static Process RunningInstance()
{
    Process[] processes = Process.GetProcesses();  //进程列表
    Process current = Process.GetCurrentProcess(); //当前进程
                                                   //当前进程名称(xxx.vshost.exe或xxx.exe)
    string currentName = Path.GetFileName(Assembly.GetCallingAssembly().Location.Replace("/", "\\"));
    currentName = currentName.Split(new char[] { '.' })[0];//只取主文件名(xxx)
    foreach (Process process in processes)
    {
        string procName = process.ProcessName;
        bool vshost = procName.Contains(".vshost");
        procName = procName.Split(new char[] { '.' })[0];
        if (!vshost && string.Compare(procName, currentName, true) == 0 && process.Id != current.Id) return process;
    }
    return null;
}

程序主函数入口调用方法

static void Main(string[] args)
{
    Console.WriteLine("go...");
    Process proc = RunningInstance();
    if (proc != null){MessageBox.Show("Please do not repeat start software！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);return;}
    Console.WriteLine("...");
    Console.ReadKey();
}