1 static void Main(string[] args)
2 {
3
4 Stopwatch watch = new Stopwatch();
5 watch.Start();
6 Console.WriteLine("Time1 = " + watch.ElapsedMilliseconds);
7 IEnumerable<string> lsFiles = Directory.EnumerateFiles(@"D:", "*.*", SearchOption.AllDirectories);
8 Console.WriteLine("Time2 = " + watch.ElapsedMilliseconds);
9 foreach (var item in lsFiles)
10 {
11
12 }
13 Console.WriteLine("Time3 = " + watch.ElapsedMilliseconds);
14 watch.Stop();
15 watch.Restart();
16 Console.WriteLine("Time3 = " + watch.ElapsedMilliseconds);
17 watch.Stop();
18 }