C++教程:C++抽象类与纯虚函数

char * student::sname()
{
   return name;
}
int student::sage()
{
   return age;
}
int student::sheight()
{
   return height;
}
int student::sweight()
{
   return weight;
}
void student::set(char *n,int a,int h,int w)
{
    int i;
   for (i=0;n[i]!='';i++)
   {