C#代码确保应用程序只有一个实例

使用互斥锁，实现只有一个程序

代码：

code.cs

string appGuid = ((GuidAttribute)Assembly.GetExecutingAssembly().GetCustomAttributes(typeof(GuidAttribute), false).GetValue(0)).Value;
using (Mutex mutex = new Mutex(false, "Global\\" + appGuid))
{
    if (!mutex.WaitOne(0, false))
    {
        return;
    }
    //启动程序
    Application.Run(new Form1());  
}

运行环境

Win10
.NET Framework 4.5
VS2019

参考资料：

• What is a good pattern for using a Global Mutex in C#?
• The Misunderstood Mutex
• C# prevent multiple instance of console application running