struct stu { int number; char name[NAME_LEN+1]; char sex[5]; char dept[20]; int age; struct stu *next;
};
struct stu *find_students1(int number,struct stu *first); struct stu *find_students2(struct stu *first); struct stu *insert(struct stu *first);//1 struct stu * search(struct s ……
xianghai 