C++的vector容器存放自定义数据类型操作实例

#include<iostream>
#include<vector>
using namespace std;
class Student
{
public:
	string m_Name;
	int m_Age;
	Student(string name, int age)
	{
		m_Name = name;
		m_Age = age;
	}
};
void test()
{
	vector<Student> v;
	Student stu1("Lucy", 22);
	Student stu2("David", 23);
	v.push_back(stu1);
	v.push_back(stu2);
	for (vector<Student>::iterator iter = v.begin(); iter != v.end(); iter++)
	{
		cout << "Name:" << iter->m_Name << " Age:" << iter->m_Age << endl;
	}
	cout << "test\n" << endl;
}
void testptr()
{
	vector<Student*> v;
	Student stu1("Lucy", 22);
	Student stu2("David", 23);
	
	//容器中存放的元素均是对象的内存地址
	v.push_back(&stu1);
	v.push_back(&stu2);

	//iter指向容器中的首元素
	//通过*iter获得相应位置处的元素即对象的内存地址
	//所以*iter是指向对象的指针，再通过->获取对象属性
	for (vector<Student*>::iterator iter = v.begin(); iter != v.end(); iter++)
	{
		cout << "Name:" << (*iter)->m_Name << " Age:" << (*iter)->m_Age << endl;
	}
	cout << "testptr" << endl;
}
int main()
{
	test();
	testptr();
}