C Programming Problems

C Programming Problems-general Linux technology-Linux programming and kernel information. The following is a detailed description. While (1)
{
Printf ("please input a student: Y/N \ n ");
Scanf ("% c", & s );
If (s = 'n' | s = 'n ')
Break;
Printf ("please your name :");
Scanf ("% s", name );
Strcpy (stu . Name, name );
Printf ("please your age ;");
Scanf ("% d", & stu. Age );
Printf ("please your sex :");
Scanf ("% d", & stu. Sex );
I ++;
}
Other codes are not included, but the whole program can run normally. The first cycle is normal, but it does not seem to be judged by s = n after the second time, and the input name is directly added, the break cannot exit normally. If you change the sex type to char, it does not seem to have the scanf input of sex.
This program uses the complete manual of "Detailed description of c program development in inux System ,,