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Key	English	Chinese (Simplified Han script)
:755	Inserts `obj` in the container.	将 `obj` 插入容器中。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; An iterator pointing to the inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	要求：`value_type` 满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可拷贝插入^]。返回：指向已插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。
:765	---	---
	Move Insert	移动插入
	```c++ iterator insert(value_type&& obj); ```	```c++ iterator insert(value_type&& obj); ```
:772	Inserts `obj` in the container.	将 `obj` 插入容器中。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; An iterator pointing to the inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	要求：`value_type` 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^]。返回：指向已插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。
:782	---	---
	Emplace Insert	原地插入
	```c++ template<class P> iterator insert(P&& obj); ```	```c++ template<class p=""> iterator insert(P&& obj); ```</class>
	Inserts an element into the container by performing `emplace(std::forward<P>(value))`.	通过执行 `emplace(std::forward<p>(value))` 向容器中插入一个元素。</p>
:791	Only participates in overload resolution if `std::is_constructible<value_type, P&&>::value` is `true`.	仅在 `std::is_constructible<value_type, p&&="">::value` 为 `true` 时参与重载决议。</value_type,>
	Returns:;; An iterator pointing to the inserted element.	返回：指向已插入元素的迭代器。
:796	---	---
	Copy Insert with Hint	带提示的拷贝插入
	```c++ iterator insert(const_iterator hint, const value_type& obj); ``` Inserts `obj` in the container.	```c++iterator insert(const_iterator hint, const value_type& obj);``` 将 `obj` 插入容器中。
:804	`hint` is a suggestion to where the element should be inserted.	`hint` 是关于元素插入位置的建议。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; An iterator pointing to the inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	要求：`value_type` 满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可拷贝插入^]。返回：指向已插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。
:816	---	---
	Move Insert with Hint	带提示的移动插入
	```c++ iterator insert(const_iterator hint, value_type&& obj); ```	```c++ iterator insert(const_iterator hint, value_type&& obj); ```
:823	Inserts `obj` in the container.	将 `obj` 插入容器中。
:825	`hint` is a suggestion to where the element should be inserted.	`hint` 是关于元素插入位置的建议。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; An iterator pointing to the inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	要求：`value_type` 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^]。返回：指向已插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。
:837	---	---
	Emplace Insert with Hint	带提示的原地插入
	```c++ template<class P> iterator insert(const_iterator hint, P&& obj); ```	```c++ template<class p=""> iterator insert(const_iterator hint, P&& obj); ```</class>
	Inserts an element into the container by performing `emplace_hint(hint, std::forward<P>(value))`.	通过执行 `emplace_hint(hint, std::forward<p>(value))` 向容器中插入一个元素。</p>
:846	Only participates in overload resolution if `std::is_constructible<value_type, P&&>::value` is `true`.	仅在 `std::is_constructible<value_type, p&&="">::value` 为 `true` 时参与重载决议。</value_type,>
:848	`hint` is a suggestion to where the element should be inserted.	`hint` 是关于元素插入位置的建议。
	Returns:;; An iterator pointing to the inserted element. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	返回：指向已插入元素的迭代器。注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。

	English	Chinese (Simplified Han script)	Actions
	Constructs an empty container, using allocator `a`.	使用分配器 `a` 构造一个空容器。
	Postconditions:;; `size() == 0` Requires:;; `key_equal` needs to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	后置条件：`size() == 0` 要求：`key_equal` 需要满足 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[可默认构造^]。
	Copy Insert	拷贝插入
	```c++ iterator insert(const value_type& obj); ```	```c++ iterator insert(const value_type& obj); ```
	Move Insert with Hint	带提示的移动插入
	Emplace Insert with Hint	带提示的原地插入
	```c++ template<class K, class T, class H, class P, class A, class Predicate> typename unordered_multimap<K, T, H, P, A>::size_type erase_if(unordered_multimap<K, T, H, P, A>& c, Predicate pred); ```	```c++ template<class k,="" class="" t,="" h,="" p,="" a,="" predicate=""> typename unordered_multimap<k, t,="" h,="" p,="" a="">::size_type erase_if(unordered_multimap<k, t,="" h,="" p,="" a="">& c, Predicate pred); ```</k,></k,></class>
	```c++ size_type bucket_size(size_type n) const; ```	```c++ size_type bucket_size(size_type n) const; ```
	Move Insert	移动插入
	```c++ iterator insert(value_type&& obj); ```	```c++ iterator insert(value_type&& obj); ```
	Emplace Insert	原地插入
	```c++ template<class P> iterator insert(P&& obj); ```	```c++ template<class p=""> iterator insert(P&& obj); ```</class>
	Inserts an element into the container by performing `emplace(std::forward<P>(value))`.	通过执行 `emplace(std::forward<p>(value))` 向容器中插入一个元素。</p>
	Returns:;; An iterator pointing to the inserted element.	返回：指向已插入元素的迭代器。
	Copy Insert with Hint	带提示的拷贝插入
	```c++ iterator insert(const_iterator hint, const value_type& obj); ``` Inserts `obj` in the container.	```c++iterator insert(const_iterator hint, const value_type& obj);``` 将 `obj` 插入容器中。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; An iterator pointing to the inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated.	要求：`value_type` 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^]。返回：指向已插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。
	Inserts an element into the container by performing `emplace_hint(hint, std::forward<P>(value))`.	通过执行 `emplace_hint(hint, std::forward<p>(value))` 向容器中插入一个元素。</p>
	Insert Iterator Range	迭代器范围插入
	Insert Initializer List	初始化列表插入
	```c++ void insert(std::initializer_list<value_type> il); ```	```c++ void insert(std::initializer_list<value_type> il); ```</value_type>
	```c++ node_type extract(const_iterator position); ```	```c++ node_type extract(const_iterator position); ```
	Removes the element pointed to by `position`.	移除 `position` 所指向的元素。
	```c++ node_type extract(const key_type& k); template<class K> node_type extract(K&& k); ```	```c++ node_type extract(const key_type& k); template<class k=""> node_type extract(K&& k); ```</class>
	Removes an element with key equivalent to `k`.	移除一个键与 `k` 等价的元素。
	Insert with `node_handle`	通过 `node_handle` 插入
	```c++ iterator insert(node_type&& nh); ```	```c++ iterator insert(node_type&& nh); ```
	Insert with Hint and `node_handle`	带提示和 `node_handle` 的插入
	```c++ iterator insert(const_iterator hint, node_type&& nh); ```	```c++ iterator insert(const_iterator hint, node_type&& nh); ```
	Erase by Position	通过位置擦除

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