Introduction - If you have any usage issues, please Google them yourself
Contains the results oh fully functional and optimized version
Design and Implementation of file operations
The overall design: design the file file.txt read, insert, and increased functionality
Requirements: (1) implementation of the entire line of the file reads and writes (unavailable fscanf, fprintf function can only fread and fwrite)
(2) File intervening passage-------- This is a test
(3) implementation of file creation, file write and add