[C#]用PerformanceCounter讀取MSMQ中的訊息數量

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using System.Diagnostics; using System;   namespace ReadMSMQ {     class Program     {         static void Main(string[] args)         {             //只要改第一與第三個參數, [hostname]\private$\[queuename]             PerformanceCounter objCounter1 = new PerformanceCounter("MSMQ Queue", "Messages in Queue", @"testHost\private$\testQueue");             Console.WriteLine(objCounter1.NextValue().ToString());               //查出MSMQ中, 每個Queue的Messages數量, 可用下面的方式             PerformanceCounterCategory objCategory = new PerformanceCounterCategory("MSMQ Queue");             PerformanceCounter objCounter2 = new PerformanceCounter("MSMQ Queue", "Messages in Queue");             foreach (string strInstanceName in objCategory.GetInstanceNames())             {                 objCounter2.InstanceName = strInstanceName;                 Console.Write(strInstanceName + " = " + objCounter2.NextValue().ToString());             }         }     } }