C语言中文件的读写操作

The Operation of Reading and writing in a File with C Language

通过对C语言打开方式的讨论 ,说明怎样对同一个文件同时进行读、写的操作。并在此基础上 。

Through discussing the method of opening a file with C language, this essay explains how to get content from a file and write to the file at the same time and how to encrypt a file without creating a temporary file.