///'#include //n#include //n#include //n//nusing namespace std;//n//n// 演示界面基类//nclass DemoScreen {//npublic://n virtual void display() = 0;//n};//n//n// 文本演示界面//nclass TextScreen : public DemoScreen {//nprivate://n string text;//n//npublic://n TextScreen(const string& t) : text(t) {}//n//n void display() override {//n cout << ///'Text: ///' << text << endl;//n }//n};//n//n// 图片演示界面//nclass ImageScreen : public DemoScreen {//nprivate://n string image;//n//npublic://n ImageScreen(const string& img) : image(img) {}//n//n void display() override {//n cout << ///'Image: ///' << image << endl;//n }//n};//n//n// 动画演示界面//nclass AnimationScreen : public DemoScreen {//nprivate://n string animation;//n//npublic://n AnimationScreen(const string& ani) : animation(ani) {}//n//n void display() override {//n cout << ///'Animation: ///' << animation << endl;//n }//n};//n//n// 演示软件//nclass DemoSoftware {//nprivate://n vector<DemoScreen*> screens;//n//npublic://n ~DemoSoftware() {//n for (DemoScreen* screen : screens) {//n delete screen;//n }//n }//n//n void addScreen(DemoScreen* screen) {//n screens.push_back(screen);//n }//n//n void run() {//n for (DemoScreen* screen : screens) {//n screen->display();//n }//n }//n};//n//nint main() {//n // 创建演示软件//n DemoSoftware software;//n//n // 添加演示界面//n software.addScreen(new TextScreen(///'Hello, world!///'));//n software.addScreen(new ImageScreen(///'example.jpg///'));//n software.addScreen(new AnimationScreen(///'example.gif///'));//n//n // 运行演示软件//n software.run();//n//n return 0;//n}//n//n以上代码实现了一个简单的演示软件，其中包含了文本演示界面、图片演示界面和动画演示界面。您可以根据需要自定义界面的内容和样式。在main函数中，创建了一个DemoSoftware对象，并添加了几个演示界面，然后调用run方法展示演示界面。//n//n请注意，以上代码只是一个基础框架，您可以根据自己的需求进行修改和扩展。//n/
