快速統計文本文件中的行數( StreamReader.ReadLine() ):
測試代碼如下:
1 //讀取txt文件中總行數的方法 2 public static int requestMethod(String _fileName) 3 { 4 Stopwatch sw = new Stopwatch(); 5 var path = _fileName; 6 int lines = 0; 7 8 //按行讀取 9 sw.Restart(); 10 using (var sr = new StreamReader(path)) 11 { 12 var ls = ""; 13 while ((ls = sr.ReadLine()) != null) 14 { 15 lines++; 16 } 17 } 18 sw.Stop(); 19 return lines; 20 }