Regarding the conversion between characters and numbers in C language, we can look at these two functions: itoa (); ? atoi()；
Charles? *itoa(？ int？ Value? Charles? *string，int？ Cardinal number);
/* Prototype description:
Value: the data to be converted.
String: the address of the target string.
Cardinality: converted radix, which can be 10 radix, 16 radix, etc. */int？ atoi(const？ Charles? * nptr)；