本文主要是介绍C# 统计代码运行时长，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;namespace Sci
{/// <summary>/// 统计代码运行时长（用于记录代码执行耗时信息）/// </summary>public class LogTime{/// <summary>/// 示例/// </summary>/// <param name="sender"></param>/// <param name="e"></param>public static void example(object sender, EventArgs e){LogTime.Start();// 待统计时长的代码...string timeStr = LogTime.CurrentStackTrace();MessageBox.Show(timeStr);LogTime.End("自定义注释信息"); // LogTime.End();}static Dictionary<string, long> timeDic = new Dictionary<string, long>();/// <summary>/// 记录log的开始时间/// </summary>/// <param name="tag"></param>/// <returns></returns>public static void Start(){string key = CurrentMethod(2) + System.Threading.Thread.CurrentThread.ManagedThreadId; // 获取调用Start()函数的函数名timeDic.Add(key, DateTime.Now.Ticks); // 记录当前调用时间}/// <summary>/// 记录指定log的结束时间/// </summary>public static void End(string msg = ""){long curTime = DateTime.Now.Ticks;string key = CurrentMethod(2) + System.Threading.Thread.CurrentThread.ManagedThreadId; // 获取调用End()函数的函数名if (timeDic.ContainsKey(key)){long preTime = timeDic[key]; // 获取Start()函数的调用时间if (msg.Length > 0) msg = "(" + msg + ")";string info = " " + CurrentMethod(2) + msg + " -> 执行耗时: " + getTimeSpan(curTime, preTime); // 生成耗时信息ThreadPool.QueueUserWorkItem((state) => { Write(info); }); // 记录至log中timeDic.Remove(key);}}/// <summary>/// 获取调用当前函数的方法名（索引1）,/// </summary>/// <returns></returns>public static string CurrentMethod(int index = 1){StackTrace stackTrace = new StackTrace();StackFrame stackFrame = stackTrace.GetFrame(index);return ToString(stackFrame, true);}/// <summary>/// 获取当前调用堆栈信息/// </summary>/// <returns></returns>public static string CurrentStackTrace(){return ToString(new StackTrace());}private static string ToString(StackTrace stackTrace, bool simple = false){StringBuilder sb = new StringBuilder();for (int i = 0; i < stackTrace.FrameCount; i++){StackFrame stackFrame = stackTrace.GetFrame(i);sb.AppendLine(ToString(stackFrame, simple));}return sb.ToString();}private static string ToString(StackFrame stackFrame, bool simple = false){if (simple) return stackFrame.GetMethod() + " ";else return stackFrame.GetFileName() + " -> " + stackFrame.GetMethod() + "，行号:" + stackFrame.GetFileLineNumber() + "，列号:" + stackFrame.GetFileColumnNumber();}static int[] unit = { 1000, 1000, 60, 60, 60, 24, 365 };static string[] unitName = { "微秒", "毫秒", "秒", "分", "时", "天", "年" };/// <summary>/// 获取耗时时长/// </summary>/// <param name="curTime"></param>/// <param name="preTime"></param>/// <returns></returns>private static string getTimeSpan(long curTime, long preTime){long tickSpan = (curTime - preTime) / 10;if (tickSpan < 0) tickSpan = -tickSpan;string timeStr = "";for (int i = 0; i < unit.Length; i++){int unitI = unit[i];if (tickSpan % unitI >= 0) timeStr = (tickSpan % unitI) + unitName[i] + timeStr;if (tickSpan > unitI) tickSpan = tickSpan / unitI;else break;}return timeStr;}/// <summary>/// 向TimeLog中添加信息/// </summary>/// <param name="info"></param>/// <param name="newLine"></param>/// <param name="time"></param>/// <returns></returns>public static bool Write(string info, bool newLine = true, bool time = true){try{string logPath = Application.StartupPath + "\\LogTime";if (!Directory.Exists(logPath)){Directory.CreateDirectory(logPath);}string threadId = System.Threading.Thread.CurrentThread.ManagedThreadId + "";logPath = logPath + "\\" + DateTime.Now.ToString("yyyyMMdd_HH") + ((DateTime.Now.Minute / 5 * 5) + "").PadLeft(2, '0') + "00_" + threadId + ".txt"; // 每5分钟，输出至一个log文件中，不同线程输出至不同文件中string data = info;if (time) data = "[" + DateTime.Now.ToString("HH:mm:ss") + "] " + data;if (newLine) data = "\r\n" + data;File.AppendAllText(logPath, data, Encoding.Unicode);return true;}catch (Exception){return false;}}}
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