Getline ()/get()/read() will read one more line. The cause may be a problem with the file itself or the getline() function. You can judge getLine ()/get()/read() while checking, and then process the data if you get it.

MXML (Minimal XML) is a small, fast and versatile library that reads a whole XML file and puts it in a DOM tree.

Hash table is a very important data structure, which is useful in many application scenarios. This paper will simply analyze the principle of hash table, and use C language to achieve a complete HashMap.