计算运行时间

如下参考实例：

TimeSpan ts=
new
TimeSpan(0);
           
TimeSpan ts2 = new
TimeSpan(0);
           
foreach (var item in
alarmListOfSpecifyOrg)
           
{
               
if (_graphicsManager.ExistsAlarm(_graphicsManager.AlarmGraphics,
item))
                   
continue;

//long aa = System.Environment.TickCount;

DateTime a1 =
DateTime.Now;
               
Graphic g =
_graphicsManager.AlarmDataToGraphic(item);
               
DateTime a2 = DateTime.Now;

ts = ts+(a2 - a1);

// long bb = System.Environment.TickCount -
aa;
             
//  s += bb;

if (g !=
null)
               
{
                  
// long cc =
System.Environment.TickCount;
                   
DateTime b1 =
DateTime.Now;
                   
_graphicsManager.Graphics.Add(g);
                   
DateTime b2 = DateTime.Now;

ts2 = ts2 + (b2 -
b1);
                   

               
}
            }

System.Diagnostics.Debug.WriteLine("创建：" +
ts.TotalMilliseconds);
           
System.Diagnostics.Debug.WriteLine("添加：" + ts2.TotalMilliseconds);

_graphicsLayerHelper.GLayer.Visible = true;

//long gg
= System.Environment.TickCount - qq;

//DateTime
b =
DateTime.Now;
           //
TimeSpan ts = b - a;
         
//System.Diagnostics.Debug.WriteLine("总计：" +ts.TotalMilliseconds);

}

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