// test.cpp : Defines the entry point for the console application.//
#include "stdafx.h"#include <iostream>#include <vector>#include <algorithm>#include <string>#include <windows.h>using namespace std;/**********************************************************************STL指示器可以反复的对STL容器的内容进行访问，STL共定义了5种类型的指示器1、输入指示器2、输出指示器3、前向指示器4、双向指示器5、随机访问指示器**********************************************************************/
//输入指示器 --- 程序使用输入指示器只能读取容器的内容int main(int argc, char* argv[]){ vector<int> intvector; //填充向量 for(int i=0; i<10; i++) intvector.push_back(i*10); //显示向量内容 vector<int>::iterator iter;//iter为指示器 for(iter=intvector.begin(); iter!=intvector.end();iter++) cout<<*iter<<" "; cout<<endl;
return 0;}
//输出指示器int main(){ vector<int> intvector(5); //填充向量 vector<int>::iterator iter = intvector.begin(); *iter++ = 10; *iter++ = 15; *iter++ = 20; *iter++ = 25; *iter = 30; //显示向量内容 vector<int>::iterator it = intvector.begin(); while(it != intvector.end()) { cout<<*it<<endl; ++it; } cout<<endl; return 0;}
//前向指示器---既可读也可写int main(){ vector<int> intvector(5); //初始化指示器 vector<int>::iterator it = intvector.begin(); vector<int>::iterator saveit = it; *it++ = 10; *it++ = 15; *it++ = 20; *it++ = 25; *it = 30; //显示向量内容 while(saveit != intvector.end()) { cout<<*saveit<<" "; saveit++; } cout<<endl;
return 0;}
//爽向指示器int main(){ vector<int> intvector(5); vector<int>::iterator it = intvector.begin(); vector<int>::iterator saveit = it; //填充向量 *it++ = 10; *it++ = 15; *it++ = 20; *it++ = 25; *it = 30; //显示向量内容 while(saveit != intvector.end()) { cout<<*saveit<<" "; saveit++; } cout<<endl; //反向显示向量内容 do{ --saveit; cout<<*saveit<<" "; }while(saveit != intvector.begin());
return 0;}
//随机指示器int main(){ vector<int> intvector(5); vector<int>::iterator it = intvector.begin(); vector<int>::iterator saveit = it; //填充向量 *it++ = 10; *it++ = 15; *it++ = 20; *it++ = 25; *it = 30; //更改第三个元素的内容 it -= 2; *it = 100; //显示向量内容 while(saveit != intvector.end()) { cout<<*saveit<<" "; saveit++; } cout<<endl; //反向显示响亮的内容 saveit -= 1; while(saveit >= intvector.begin()) { cout<<*saveit<<" "; saveit--; } cout<<endl; return 0;}
//特殊用途的指示器//输入流指示器---istream_iterator<char> (strm)void show_val(int val){ cout<<val<<" ";}
int main(){ vector<int> intvector; //填充向量 for(int i=0;i<5;i++) intvector.push_back(* istream_iterator<int> (cin)); //显示向量内容 for_each(intvector.begin(),intvector.end(),show_val); cout<<endl; return 0;}
//输出流指示器---ostream_iterator<char> (strm)void show_val(string val){ cout<<val<<" ";}
int main(){ vector<string> strvector1; vector<string> strvector2; //用值填充向量 strvector1.push_back("Zebra"); strvector1.push_back("Deer"); strvector1.push_back("Fish"); strvector1.push_back("Snake"); strvector1.push_back("Bat");
strvector2.push_back("Cat"); strvector2.push_back("Bird"); strvector2.push_back("Turtle"); strvector2.push_back("Horse"); strvector2.push_back("Cow");
//显示向量内容 for_each(strvector1.begin(),strvector1.end(),show_val); cout<<endl; for_each(strvector2.begin(),strvector2.end(),show_val);
//向量排序 merge(strvector1.begin(),strvector1.end(),strvector2.begin(),strvector2.end(),std::ostream_iterator<std::string> (std::cout)); cout<<endl; return 0;}
//指示器适配器//反向指示器---rbegin() rend()void show_val(string val){ cout<<val<<endl;}
int main(){ vector<string> strvector; //填充向量 strvector.push_back("Zebra"); strvector.push_back("Deer"); strvector.push_back("Fish"); strvector.push_back("Snake"); strvector.push_back("Bat");
//显示向量内容 for_each(strvector.begin(),strvector.end(),show_val); cout<<endl; //反向显示向量内容 for_each(strvector.rbegin(),strvector.rend(),show_val); cout<<endl; return 0;}
//插入指示器void show_val(int val){ cout<<val<<endl;}
int main(){ vector<int> intvector(5); std::back_insert_iterator<vector<int> > it(intvector); *it++ = 23; *it++ = 34; *it++ = 45; *it++ = 56; *it = 67; //显示向量内容 for_each(intvector.begin(),intvector.end(),show_val); cout<<endl; return 0;}
//类模板template <class T1,class T2,int num=10>class mytemp{private: T1 t1; T2 t2;public: mytemp(T1 tt1,T2 tt2) { t1 = tt1 + num; t2 = tt2 + num; } void dispaly() { cout<<"T1 "<<t1<<" T2 "<<t2<<endl; }};
int main(){ int a = 123; int c = 1000; double b = 456.789; mytemp<int,double> mt1(a,b); mytemp<int,double,100> mt2(a,b);
mt1.dispaly(); mt2.dispaly();
return 0;}
template <class T>class custom{public: custom(); void start();};
template<class T>custom<T>::custom(){}
template <class T>void custom<T>::start(){ T op; op.output();}/class b{public: void output() { cout<<"hello,this is class b"<<endl; }};//class a{public: output() { cout<<"hello,this is class a"<<endl; }};int main(){ custom<b> b1; b1.start(); custom<a> a1; a1.start(); return 0;}
template<class T>class temp{ int data;public: temp(int n){ data = n; } void dispaly();};
template<class T>void temp<T>::dispaly(){ cout<<"data :"<<data<<endl;}
int main(){ temp<int> a(9); a.dispaly(); return 0;}
int main(){ ::MessageBox (NULL,TEXT("hello,this is function of API, MessageBox()"),TEXT("MssageBox"),MB_OK); return 0;}
