一,先开启开始或继续测量某个时间间隔的运行时间,然后停止,最后重置时间,输出.

using System;using System.Collections.Generic;using System.Diagnostics;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class TestPerformance : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {        /*Var 性能测试 */        Stopwatch stw = new Stopwatch();        List
     
       intlist = new List
      
       ();        stw.Start();        for (long i = 0; i < 10000000; i++)        {            var index = i;//使用var转入和转出            intlist.Add(index);        }        stw.Stop();        Label1.Text= stw.Elapsed.Ticks.ToString();         stw.Reset();        /*Int 性能测试 */        List
       
         intlist2 = new List
        
         ();        stw.Start();//开始时间        for (long i = 0; i < 1000000; i++)        {            long index = i;//使用int转入和转出            intlist2.Add(index);        }        stw.Stop();        Label2.Text = stw.Elapsed.Ticks.ToString();        stw.Reset();        /*Object性能测试 */        stw.Start();//开始时间        List
         
           intlist3 = new List
          
           (); for (long i = 0; i < 1000000; i++) { object index = i;//使用object转入和转出 intlist3.Add((long)index); } stw.Stop(); Label3.Text = stw.Elapsed.Ticks.ToString(); }}
          
         
        
       
      
     

二,前端显示

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestPerformance.aspx.cs" Inherits="TestPerformance" %>
             
     
    
      
               Var:
       
       
        Int:
       
       
        Object:
           
      
    
     

三,显示结果