asp.net中C#实现手动回收内存的方法

class Program
{
         static void Main(string[] args)
         {
             long lenth = 1024 * 1024 * 128;
 
             GetCost("程序启动");
 
             double[] data = new double[lenth];
             for (int i = 0; i < lenth; i++)
             {
                 data[i] = double.MaxValue;
             }
             GetCost("数据制造完成");
 
             data = null;
             GetCost("data = null");
 
             System.GC.Collect();
             GetCost("System.GC.Collect()");
 
             Console.ReadKey();
         }
 
         /// <summary>
         /// 显示内存使用的状态
         /// </summary>
         /// <param name="state"></param>
         static void GetCost(string state)
         {
             Console.Write("当前状态：" + state + ";  占用内存:");
             using (var p1 = new PerformanceCounter("Process", "Working Set - Private", "GCtest.vshost"))
             {
                 Console.WriteLine( (p1.NextValue()/1024/1024).ToString("0.0")+"MB");
             }
         }
}

using(
SqlConnection Conn=new SqlConnection(connstr))
{
}
//不必显示关闭或
try{
conn.Open();}catch{}finally{conn.Close();
}

<%@ OutputCache Duration="180" VaryByParam="None" %>

string mKeyValue = "";
if(Cache["关键字"] != null)
{
mKeyValue = Cache["关键字"];
}