STL初识

#include<vector>
#include<algorithm>
#include<iostream>
using namespace std;
void print(int val) {
  cout << val << endl;
}
void test() {
  vector<int> v;
  v.push_back(10);
  v.push_back(20);
  v.push_back(30);
  v.push_back(40);
  v.push_back(50);
  v.push_back(60);
  vector<int>::iterator p_Begin = v.begin();
  vector<int>::iterator p_End = v.end();
  while (p_Begin != p_End) {
    cout << *p_Begin << endl;
    p_Begin++;
  }
  cout << endl;
  for(vector<int>::iterator t = v.begin(); t != v.end(); t++) {
    cout << *t << endl;
  }
  cout << endl;
  for_each(v.begin(), v.end(), print);
}
int main() {
  test();
  return 0;
}

#include<vector>
#include<algorithm>
#include<iostream>
#include<string>
using namespace std;
class person {
public:
  person(string name, int age) {
    m_name = name;
    m_age = age;
  }
public:
  string m_name;
  int m_age;
};
void test() {
  vector<person> v;
  person p1("aaa", 10);
  person p2("bbb", 20);
  person p3("ccc", 30);
  person p4("ddd", 40);
  person p5("eee", 50);
  v.push_back(p1);
  v.push_back(p2);
  v.push_back(p3);
  v.push_back(p4);
  v.push_back(p5);
  for (vector<person>::iterator it = v.begin(); it != v.end(); it++) {
    cout <<"name is"<<  (*it).m_name <<"age is" <<(*it).m_age<< endl;
  }
}
int main() {
  test();
  return 0;
}

#include<vector>
#include<algorithm>
#include<iostream>
#include<string>
using namespace std;
class person {
public:
  person(string name, int age) {
    m_name = name;
    m_age = age;
  }
public:
  string m_name;
  int m_age;
};
void test() {
  vector<person *> v;
  person p1("aaa", 10);
  person p2("bbb", 20);
  person p3("ccc", 30);
  person p4("ddd", 40);
  person p5("eee", 50);
  v.push_back(&p1);
  v.push_back(&p2);
  v.push_back(&p3);
  v.push_back(&p4);
  v.push_back(&p5);
  for (vector<person *>::iterator it = v.begin(); it != v.end(); it++) {
    person* p = (*it);
    cout <<"name is"<<  (*it)->m_name <<"age is" <<(*it)->m_age<< endl;
    cout << "name is" << p->m_name << "age is" << p->m_age << endl;
  }
}
int main() {
  test();
  return 0;
}

#include<string>
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
void test() {
  vector<vector<int>> v;
  vector<int> v1;
  vector<int> v2;
  vector<int> v3;
  vector<int> v4;
  for (int i = 0; i < 4; i++) {
    v1.push_back(i + 1);
    v2.push_back(i + 2);
    v3.push_back(i + 3);
    v4.push_back(i + 4);
  };
  v.push_back(v1);
  v.push_back(v2);
  v.push_back(v3);
  v.push_back(v4);
  for (vector<vector<int>>::iterator it = v.begin(); it != v.end(); it++) {
    for (vector<int>::iterator t = (*it).begin(); t != (*it).end(); t++) {
      cout << *t << " ";
    }
  }
}
int main() {
  test();
  return 0;
}