How to use random read and write the suffix name for ".txt" file data block

Mar 1 2012 3:38 AM

hi,
How to use random read-write file method, taking the value assigned to the member list in C language.
struct LibraryManage
{
   char StudentID[20];
   char BookIndex[20];
   char LoanBookTime[20];
};

the "LoanBook.txt" Content is as follows:
StudentID           BookIndex       LoanBookTime
20101001            C01               10/8/2010
20101002            CPP02             12/9/2010