枚举

#include<iostream.h>
enum somecities{
 zhanjiang=1,
 shanyang,
 xian,
 zhongshan,
 xianggang=100//100
};
void printenum(somecities sc)
{cout<<sc<<endl;
}
int main()
{somecities onecity=somecities(50);
printenum(onecity);
return 0;
}