【例92】分析下面的程序 nclude" iostream. h"° class private int x: public: void fi(int a) int f20: 人民邮电出版社 POSTS tEl OM PRE 动此映【例9.2】分析下面的程序。 #include "iostream.h" class A { private: int x; public: void f1(int a); int f2(); };