47 lines
881 B
C++
47 lines
881 B
C++
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// 存放类对象的数据 vector
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#include <bits/stdc++.h>
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using namespace std;
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class Student
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{
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friend ostream &operator<<(ostream &out, const Student &stu);
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private:
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string name;
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int age;
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public:
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Student(const string &name, int age)
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{
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this->name = name;
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this->age = age;
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}
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};
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ostream &operator<<(ostream &out, const Student &stu)
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{
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out << "name: " << stu.name << ", age: " << stu.age;
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return out;
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}
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int main()
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{
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vector<Student> v;
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v.push_back(Student("zhangsan", 20));
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v.push_back(Student("lisi", 21));
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v.push_back(Student("wangwu", 22));
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v.push_back(Student("zhaoliu", 23));
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v.pop_back(); // 删除最后一个元素
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// 创建迭代器
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vector<Student>::iterator it = v.end();
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while (it != v.begin())
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{
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cout << *(--it) << endl; // 重载了<<运算符
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}
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return 0;
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}
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