[C #] Statistics text file number of lines in txt (fast read)

Number of lines in the Quick Statistics text file (StreamReader.ReadLine ()):

The test code is as follows:

1  　　      //How to read the total number of rows in a TXT file2          Public Static intRequestmethod (String _filename)3         {4Stopwatch SW =NewStopwatch ();5             varPath = _filename;6             intLines =0;7 8             //read by row9 SW. Restart ();Ten             using(varSR =NewStreamReader (path)) One             { A                 varls =""; -                  while(ls = Sr.) ReadLine ())! =NULL) -                 { thelines++; -                 } -             } - SW. Stop (); +             returnlines; -}

　　

[C #] Statistics text file number of lines in txt (fast read)