标签：plain 代码 number containe test rac cell border 实现
第一种方法利用System.DateTime.Now：
|
1
2
3
4
5
6
7
8
9
10
|
static void SubTest(){DateTime beforDT = System.DateTime.Now;//耗时巨大的代码DateTime afterDT = System.DateTime.Now;TimeSpan ts = afterDT.Subtract(beforDT);Console.WriteLine("DateTime总共花费{0}ms.", ts.TotalMilliseconds);} |
第二种用Stopwatch类(System.Diagnostics)：
|
1
2
3
4
5
6
7
8
9
10
11
|
static void SubTest(){Stopwatch sw = new Stopwatch();sw.Start();//耗时巨大的代码sw.Stop();TimeSpan ts2 = sw.Elapsed;Console.WriteLine("Stopwatch总共花费{0}ms.", ts2.TotalMilliseconds);} |
第三种用API实现：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
[System.Runtime.InteropServices.DllImport("Kernel32.dll")]static extern bool QueryPerformanceCounter(ref long count);[System.Runtime.InteropServices.DllImport("Kernel32.dll")]static extern bool QueryPerformanceFrequency(ref long count);static void SubTest(){long count = 0;long count1 = 0;long freq = 0;double result = 0;QueryPerformanceFrequency(ref freq);QueryPerformanceCounter(ref count);//耗时巨大的代码QueryPerformanceCounter(ref count1);count = count1 - count;result = (double)(count) / (double)freq;Console.WriteLine("QueryPerformanceCounter耗时: {0} 秒", result);} |
标签：plain 代码 number containe test rac cell border 实现
原文地址：http://www.cnblogs.com/soundcode/p/6553136.html
