std::tuple<int, float, string> t (,6.3,"nico");

std::tuple<int, float, string> t (,2.5,"C++");

std::cout << sizeof(t) <<std::endl; //至于为啥是 32一直没弄懂

std::cout << get<>(t) <<std::endl;

std::cout << get<>(t) <<std::endl;

std::cout << get<>(t) <<std::endl;

//make_tuple<>

auto t1 = make_tuple(,,"zi");

std::cout << sizeof(t1) <<std::endl;

std::cout << get<>(t1) <<std::endl;

std::cout << get<>(t1) <<std::endl;

std::cout << get<>(t1) <<std::endl;

//tuple的赋值

auto t1 = make_tuple(,,"zi");

get<>(t1) = get<>(t1); //直接赋值,但是要求变量类型相同

std::cout<< get<>(t1) << std::endl;

//tie 捆绑  a,b,c 捆绑在t1的三个值上

 auto t1 = make_tuple(,,"zi");

 int a;

 int b;

 string c;

 tie(a,b,c) = t1;

 cout << a << endl;

//重新定义

typedef tuple<int, float, string> TupleType;//重命名

cout << tuple_size<TupleType>::value<< endl; //输出Tuple内的元素个数

tuple_element<, TupleType> :: type f = ; //去tuple的第一个元素类型去声明变量

cout << f <<endl;

typedef tuple_element<, TupleType> :: type INT;//将Tuple的第一个元素的类型重新命名

INT g = ;

cout << g << endl;