01.//02.* Copyright (c) 2013, 烟台大学计算机学院 02.//04.* 作 者: 马德鹏 03.//05.* 完成日期:2014 年 5 月 29 日 04.//06.* 版 本 号:v1.0 05.//07.* #include <iostream> #include <string> using namespace std; class Animal { public: virtual void cry() const=0; }; class Mouse: public Animal { public: Mouse(string nam,char s):name(nam),sex(s) {} void cry()const { if(sex=='m') { cout<<"我叫"<<name<<","<<"是一只男老鼠,我的叫声是:吱吱吱!"<<endl; } else if(sex=='f') { cout<<"我叫"<<name<<","<<"是一只女老鼠,我的叫声是:吱吱吱!"<<endl; } } private: string name; char sex; }; class Cat:virtual public Animal { public: Cat(string nam):name(nam) {} void cry()const { cout<<"我叫"<<name<<","<<"是一只猫,我的叫声是:喵喵喵!"<<endl; } private: string name; }; class Dog:virtual public Animal { public: Dog(string nam):name(nam) {} void cry()const { cout<<"我叫"<<name<<","<<"是一只狗,我的叫声是:汪汪汪!"<<endl; } private: string name; }; class Giraffe:virtual public Animal { public: Giraffe(string nam,char s):name(nam),sex(s) {} void cry()const { cout<<"我叫"<<name<<","<<"是男长颈鹿,我的脖子太长,发不出声音来!"<<endl; } private: string name; char sex; }; int main( ) { Animal *p; Mouse m1("Jerry",'m'); p=&m1; p->cry(); Mouse m2("Jemmy",'f'); p=&m2; p->cry(); Cat c1("Tom"); p=&c1; p->cry(); Dog d1("Droopy"); p=&d1; p->cry(); Giraffe g1("Gill",'m'); p=&g1; p->cry(); return 0; }
虚基类版的项目1-动物这样叫
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