Respuesta :

zrh2sfo
Answer: you should use the Remove function.

Here is C example to remove first three characters from a string with C?

void chopN(char *str, size_t n)
 { assert(n != 0 && str != 0);
 size_t len = strlen(str);
     if (n > len)
         return; // Or: n = len;
memmove(str, str+n, len - n + 1);