vector<int> vec{1,2,3,4,5,6,7,8};
vector<double> vec2(10,5.6);
vector<int> vec3{ 1,2,3,4,5,6,7,9 };
deque<int> deq{ 9,8,7,6,5,4,3,2,1 };
deque<float> deq2(7,7.7f);
list<int> li{ 5,6,7,8,9 };
forward_list<double> forli(7, 0.1234);
array<int, 6> arr{1,5,4,7,9,6};
//array<int, 6> arr2(6,5);array没有构造函数，不能进行构造初始化
cout << "vec size = " << vec.size() << endl;
cout << "arr size = " << arr.size() << endl;
//cout << "forli size = " << forli.size() << endl;//forward_list,没有size方法
cout << "vec max_size = " << vec.max_size() << endl;
cout << "vec3 max_size = " << vec3.max_size() << endl;
cout << "arr max_size = " << arr.max_size() << endl;
cout << "forli max_size = " << forli.max_size() << endl;
vec = { 9,6,3,5,7,4,5,8,7 };
cout << "vec size = " << vec.size() << endl;
/迭代器 begin end
vector<int>::iterator itvec = vec.begin();
cout << *itvec << endl;
cout << *++itvec << endl;
cout << vec.end() - vec.begin() << endl;
vector<string> vecstr{"aaa","bbb","ccc","ddd","eee"};
vector<string> vecstr2(vecstr);//容器类型和元素类型必须匹配
//list<string> listr(vecstr);//错误，容器类型不一致
//vector<char> vecch(vecstr);//错误，元素类型不一致
swap(vec, vec3);//交换 容器类型要相同，元素类型也要相同同
show(vec);
show(vec3);
vec3.assign({1,1,1,1,2,2,2,2});//替换为初始化表
show(vec3);
vec3.assign(5,45);//替换重新构造的元素
show(vec3);
vec3.assign(vec.rbegin(),vec.rend());
show(vec3);
