标签:style blog color os io for ar div log
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1 class Program 2 { 3 4 [System.Runtime.InteropServices.DllImport("Kernel32.dll")] 5 static extern bool QueryPerformanceCounter(ref long count); 6 [System.Runtime.InteropServices.DllImport("Kernel32.dll")] 7 static extern bool QueryPerformanceFrequency(ref long count); 8 [STAThread] 9 static void Main(string[] args) 10 { 11 Console.WriteLine("开始执行操作\r\n"); 12 long count = 0; 13 long count1 = 0; 14 long freq = 0; 15 double result = 0; 16 17 QueryPerformanceFrequency(ref freq); 18 QueryPerformanceCounter(ref count); 19 20 #region 程序逻辑执行部分 21 int times = 20; 22 int value = 1; 23 string filePath = "D://123.txt"; 24 25 do 26 { 27 if (!File.Exists(filePath)) 28 { 29 var file = File.Create(filePath); 30 file.Close(); 31 File.WriteAllText(filePath, "1"); 32 } 33 else 34 { 35 value = Convert.ToInt32(File.ReadAllText(filePath)); 36 value++; 37 File.WriteAllText(filePath, value.ToString()); 38 times--; 39 } 40 Console.WriteLine(value); 41 } while (times > 0); 42 #endregion 43 44 QueryPerformanceCounter(ref count1); 45 count = count1 - count; 46 result = (double)(count) / (double)freq; 47 Console.WriteLine("结束操作,当前程序耗时: {0} 秒", result); 48 Console.ReadLine(); 49 }
标签:style blog color os io for ar div log
原文地址:http://www.cnblogs.com/yangda/p/3930034.html