這個星期在學C++

用的是http://www.d2school.com/第二學堂的教材。

 

貼一小段代碼，用來幫助自己記憶所學。

 

#include <iostream> #include <vector> #include <stdlib.h> #include <list> using namespace std; struct person { public: void setname(string const sname) { name = sname; } void setage(int const sage) { age = sage; } string getname() { return name; } int getage() { return age; } virtual void savehello() { cout << "Hello,My name is "<<name<<endl; } protected: private: string name; int age; }; struct man: public person { man() { gender = "男"; } public: void setsex(string const sgender) { gender = sgender; } string getsex() { return gender; } virtual void savehello() { string myname; myname = getname(); cout <<"你好，我是"<<myname<<"，很高興認識你！/n"; } protected: private: string gender; }; int main() { string name,gender; int age,i,s; //枚舉 enum {sa_in = 1,sa_ou,sa_go}; cout <<"枚舉："<<sa_ou<<","<<sa_go<<endl; man hu,wen,li,wu; //列表 list<int> lst; lst.push_front(10); lst.push_front(20); lst.push_back(8); lst.push_back(9); //列表--非迭代器函數 s = lst.size(); cout <<"列表size:"<<s<<endl; lst.pop_front(); lst.pop_back(); cout <<"列表第一項："<<lst.front()<<endl; cout <<"列表最後項："<<lst.back()<<endl; s = lst.size(); cout <<"列表size："<<s<<endl; lst.clear(); //列表--迭代器函數 lst.push_front(15); lst.push_front(20); lst.push_back(5); lst.push_back(10); list<int>::iterator iter = lst.begin(); list<int>::reverse_iterator iter2 = lst.rbegin(); i = *iter; cout <<"列表開始項："<<i<<endl; i = *iter2; cout <<"列表最後項："<<i<<endl; ++iter; lst.insert(iter,1);//插入後列表是：20,1,15,5,10 cout <<"列表插入後："<<*iter<<endl; lst.erase(iter); cout <<"列表刪除後："<<*iter<<endl; cout <<"列表最後項："<<*iter2<<endl; //遍歷列表 for (list<int>::const_iterator c_iter = lst.begin();c_iter != lst.end();++c_iter) { cout <<*c_iter<<","; } lst.clear(); cout<<"/n"; //向量 vector<man> manyman; manyman.push_back(hu); manyman.push_back(wen); manyman.push_back(li); manyman.push_back(wu); manyman[0].setname("胡濤"); manyman[0].setage(68); manyman[1].setname("溫寶"); manyman[1].setage(68); manyman[2].setname("李強"); manyman[2].setage(55); manyman[3].setname("吳國"); manyman[3].setage(69); s = manyman.size(); for (i = 0;i<s;i++) { name = manyman[i].getname(); age = manyman[i].getage(); gender = manyman[i].getsex(); cout <<name<<","<<gender<<","<<age<<"歲。"<<endl; } manyman.clear(); cout <<"/n"; //=============================過去了==========================1 person ahai; ahai.setname("阿海"); ahai.setage(10); name = ahai.getname(); age = ahai.getage(); cout <<name<<endl; cout <<age<<endl; ahai.savehello(); cout <<"/n"; man yanhai; yanhai.setname("歐耶"); yanhai.setage(23); yanhai.setsex("男"); name = yanhai.getname(); age = yanhai.getage(); gender = yanhai.getsex(); cout <<name<<endl; cout <<age<<endl; cout <<gender<<endl; yanhai.savehello(); system("pause"); return 0; }