C # use a memory ing file to read large log files (. Log)

C # There are many ways to read large files. Here I use file. readallbytes (filename) is read once, stored in memory with memorystream, and read row by streamreader. The speed is quite fast, and 16 MB of text is about 8 seconds, it's almost faster. But it still cannot meet the needs of large files (after all, the memory space is limited ).

// Using system. IO;
// Using system. text;
// Put into the memory stream for Row-by-row reading
Memorystream MS = New Memorystream (file. readallbytes (filename ));
Using (Streamreader sr = New Streamreader (MS, encoding. getencoding ( " Gb2312 " )))
{
Try
{
While (Sr. Peek ()>- 1 )
{
String Info = Sr. Readline ();

//Do something
}
}
Catch(Exception ex) {Sr. Close ();ThrowEx ;}
}
MS =Null;

Reference: http://www.cnblogs.com/criedshy/archive/2010/06/13/1757826.html