Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Multimap (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Swaps the contents of `x` and `y`.

Zen

Translation

English

Chinese (Simplified Han script)

Needs editing

Skip

Key	English	Chinese (Simplified Han script)
	__iter-mapped-type__	__iter-mapped-type__
	__iter-to-alloc-type__	__iter-to-alloc-type__
	Equality Comparisons	相等性比较
	operator	运算符
	```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator==(const unordered_multimap<Key, T, Hash, Pred, Alloc>& x, const unordered_multimap<Key, T, Hash, Pred, Alloc>& y); ```	```c++ template<class key,="" class="" t,="" hash,="" pred,="" alloc=""> bool operator==(const unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& x, const unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& y); ```</key,></key,></class>
	Return `true` if `x.size() == y.size()` and for every equivalent key group in `x`, there is a group in `y` for the same key, which is a permutation (using `operator==` to compare the value types).	若 `x.size() == y.size()` 且对于 `x` 中的每个等价键组，在 `y` 中均存在一个具有相同键的组，并且该组是 `x` 中对应组的置换（使用 `operator==` 比较值类型），则返回 `true`。
:1428	Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.	注意：如果两个容器不具有等价的相等谓词，则行为未定义。
:1430	---	---
	operator!	operator!
	```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator!=(const unordered_multimap<Key, T, Hash, Pred, Alloc>& x, const unordered_multimap<Key, T, Hash, Pred, Alloc>& y); ```	```c++ template<class key,="" class="" t,="" hash,="" pred,="" alloc=""> bool operator!=(const unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& x, const unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& y); ```</key,></key,></class>
	Return `false` if `x.size() == y.size()` and for every equivalent key group in `x`, there is a group in `y` for the same key, which is a permutation (using `operator==` to compare the value types).	若 `x.size() == y.size()` 且对于 `x` 中的每个等价键组，在 `y` 中均存在一个具有相同键的组，并且该组是 `x` 中对应组的置换（使用 `operator==` 比较值类型），则返回 `false`。
:1442	Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.	注意：如果两个容器不具有等价的相等谓词，则行为未定义。
:1444	---	---
	Swap	交换
	```c++ template<class Key, class T, class Hash, class Pred, class Alloc> void swap(unordered_multimap<Key, T, Hash, Pred, Alloc>& x, unordered_multimap<Key, T, Hash, Pred, Alloc>& y) noexcept(noexcept(x.swap(y))); ```	```c++ template<class key,="" class="" t,="" hash,="" pred,="" alloc=""> void swap(unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& x, unordered_multimap<key, t,="" hash,="" pred,="" alloc="">& y) noexcept(noexcept(x.swap(y))); ```</key,></key,></class>
	Swaps the contents of `x` and `y`.	交换 x 和 y 的内容。
:1456	If `Allocator::propagate_on_container_swap` is declared and `Allocator::propagate_on_container_swap::value` is `true` then the containers' allocators are swapped. Otherwise, swapping with unequal allocators results in undefined behavior.	如果 `Allocator::propagate_on_container_swap` 被声明且 `Allocator::propagate_on_container_swap::value` 为 `true`，则交换容器的分配器。否则，使用不相等的分配器进行交换将导致未定义行为。
	Effects:;; `x.swap(y)` Throws:;; Doesn't throw an exception unless it is thrown by the copy constructor or copy assignment operator of `key_equal` or `hasher`. Notes:;; The exception specifications aren't quite the same as the C++11 standard, as the equality predicate and hash function are swapped using their copy constructors.	效果：`x.swap(y)` 抛出：除非 `key_equal` 或 `hasher` 的拷贝构造函数或拷贝赋值运算符抛出异常，否则不抛出任何异常。注意：异常规范与 C++11 标准不完全相同，因为相等谓词和哈希函数是使用其拷贝构造函数进行交换的。
:1463	---	---
	erase_if	erase_if
	```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>
	Traverses the container `c` and removes all elements for which the supplied predicate returns `true`.	遍历容器 `c`，并移除所有使给定谓词返回 `true` 的元素。
	Returns:;; The number of erased elements. Notes:;; Equivalent to: + + ```c++ auto original_size = c.size(); for (auto i = c.begin(), last = c.end(); i != last; ) { if (pred(*i)) { i = c.erase(i); } else { ++i; } } return original_size - c.size(); ``` + Note that the references passed to `pred` are non-const.	返回：被擦除的元素数量。注意：等价于： ```c++auto original_size = c.size();for (auto i = c.begin(), last = c.end(); i != last; ) {if (pred(*i)) {i = c.erase(i);} else {++i;}}return original_size - c.size(); ``` 注意，传递给 `pred` 的引用是非常量的。
	Serialization	序列化
	``unordered_multimap``s can be archived/retrieved by means of link:../../../../../serialization/index.html[Boost.Serialization^] using the API provided by this library. Both regular and XML archives are supported.	`unordered_multimap` 可以通过本库提供的 API，借助 link:../../../../../serialization/index.html[Boost.Serialization^] 进行归档/恢复。支持常规归档和 XML 归档。
	Saving an unordered_multimap to an archive	将 unordered_multimap 保存到归档
	Saves all the elements of an `unordered_multimap` `x` to an archive (XML archive) `ar`.	将 `unordered_multimap` 容器 `x` 的所有元素保存到归档（XML 归档） `ar` 中。
	Requires:;; `std::remove_const<key_type>::type` and `std::remove_const<mapped_type>::type` are serializable (XML serializable), and they do support Boost.Serialization `save_construct_data`/`load_construct_data` protocol (automatically suported by https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^] types).	要求：`std::remove_const<key_type>::type` 和 `std::remove_const<mapped_type>::type` 必须是可序列化的（对于 XML 归档需支持 XML 序列化），并且它们必须支持 Boost.Serialization 的 `save_construct_data`/`load_construct_data` 协议（该协议由满足 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[可默认构造^] 的类型自动支持）。</mapped_type></key_type>
:1509	---	---
	Loading an unordered_multimap from an archive	从归档加载 unordered_multimap
	Deletes all preexisting elements of an `unordered_multimap` `x` and inserts from an archive (XML archive) `ar` restored copies of the elements of the original `unordered_multimap` `other` saved to the storage read by `ar`.	删除 `unordered_multimap` 容器 `x` 中所有已存在的元素，并从归档（XML 归档）`ar` 中插入从原始 `unordered_multimap` 容器 `other` 保存到 `ar` 所读取存储中的元素恢复出的副本。

	English	Chinese (Simplified Han script)	Actions
	The behavior of this function is undefined if `this\->get_allocator() != source.get_allocator()`.	如果 `this->get_allocator() != source.get_allocator()`，则此函数的行为未定义。
	This function does not copy or move any elements and instead simply relocates the nodes from `source` into `*this`.	此函数不会拷贝或移动任何元素，而是仅仅将节点从 `source` 重新定位到 `*this` 中。
	Notes:;; + --	注意:;; + --
	Iterators to non-transferred elements in `source` remain valid.	指向 `source` 中未被转移元素的迭代器保持有效。
	--	--
	hash_function	哈希函数
	``` hasher hash_function() const; ```	``` hasher hash_function() const; ```
	find	find
	Requires:;; `n < bucket_count()` Returns:;; The number of elements in bucket `n`.	要求：`n < bucket_count()` 返回：桶 `n` 中的元素数量。
	Returns:;; An iterator pointing to an element with key equivalent to `k`, or `b.end()` if no such element exists. Notes:;; The templated overloads containing `CompatibleKey`, `CompatibleHash` and `CompatiblePredicate` are non-standard extensions which allow you to use a compatible hash function and equality predicate for a key of a different type in order to avoid an expensive type cast. In general, its use is not encouraged and instead the `K` member function templates should be used. + + The `template<class K>` overloads only participate in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.	返回：指向键与 `k` 等价的元素的迭代器；如果不存在这样的元素，则返回 `b.end()`。注意：包含 `CompatibleKey`、`CompatibleHash` 和 `CompatiblePredicate` 的模板化重载是非标准扩展，允许您为不同类型的键使用兼容的哈希函数和相等谓词，以避免昂贵的类型转换。通常不鼓励使用它们，而应使用 `K` 成员函数模板。 `template<class k="">` 重载仅在 `Hash::is_transparent` `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
	count	count
	contains	包含
	```c++ bool contains(const key_type& k) const; template<class K> bool contains(const K& k) const; ```	```c++ bool contains(const key_type& k) const; template<class k=""> bool contains(const K& k) const; ```</class>
	equal_range	equal_range
	```c++ void reserve(size_type n); ```	```c++ void reserve(size_type n); ```
	Swaps the contents of `x` and `y`.	交换 x 和 y 的内容。
	Serialization	序列化
	Traverses the container `c` and removes all elements for which the supplied predicate returns `true`.	遍历容器 `c`，并移除所有使给定谓词返回 `true` 的元素。
	Saves all the elements of an `unordered_multimap` `x` to an archive (XML archive) `ar`.	将 `unordered_multimap` 容器 `x` 的所有元素保存到归档（XML 归档） `ar` 中。
	Returns:;; `std::distance(begin(), end())`	返回：`std::distance(begin(), end())`。
	max_size	max_size
	```c++ size_type max_size() const noexcept; ```	```c++ size_type max_size() const noexcept; ```
	Returns:;; `size()` of the largest possible container.	返回：可能的最大容器的 `size()`。
	emplace	原地构造
	```c++ template<class... Args> iterator emplace(Args&&... args); ```	```c++ template<class... args=""> iterator emplace(Args&&... args); ```</class...>
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] into `X` from `args`. 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` 必须可以从 `args` 出发在 `X` 中进行 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[可原位构造^]。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。
	emplace_hint	emplace_hint
	```c++ iterator insert(const_iterator hint, value_type&& obj); ```	```c++ iterator insert(const_iterator hint, value_type&& obj); ```
	```c++ template<class P> iterator insert(const_iterator hint, P&& obj); ```	```c++ template<class p=""> iterator insert(const_iterator hint, P&& obj); ```</class>
	```c++ template<class InputIterator> void insert(InputIterator first, InputIterator last); ```	```c++ template<class inputiterator=""> void insert(InputIterator first, InputIterator last); ```</class>

Loading…

admin

Translation uploaded

English

Chinese (Simplified Han script) 30 characters editedCurrent translationState: Translated

06/05/2026

admin

String added in the repository

English

Chinese (Simplified Han script) 34 characters editedPrevious translationState: Needs editing (Needs rewriting)

06/05/2026

Browse all string changes

Glossary

English	Chinese (Simplified Han script)
No related strings found in the glossary.

String information

Flags

safe-html, strict-same

Unit identifier

51728

Source string location

:1454

String age

06/05/2026

Last updated

06/06/2026

Source string age

06/05/2026

Translation file AsciiDoc file

doc/modules/ROOT/pages/reference/unordered_multimap_zh_Hans.adoc, string 410

Shortcut	Action
`?`	Open available keyboard shortcuts.
`Alt` + `Home`	Navigate to the first translation in the current search.
`Alt` + `End`	Navigate to the last translation in the current search.
`Alt` + `PageUp` or `Ctrl` + `↑` or `Alt` + `↑` or `Cmd` + `↑` or	Navigate to the previous translation in the current search.
`Alt` + `PageDown` or `Ctrl` + `↓` or `Alt` + `↓` or `Cmd` + `↓` or	Navigate to the next translation in the current search.
`Ctrl` + `Enter` or `Cmd` + `Enter`	Submit current form; this works the same as pressing Save and continue while editing translation.
`Ctrl` + `Shift` + `Enter` or `Cmd` + `Shift` +`Enter`	Unmark translation as Needing edit and submit it.
`Alt` + `Enter` or `Option` + `Enter`	Submit the string as a suggestion; this works the same as pressing Suggest while editing translation.
`Ctrl` + `E` or `Cmd` + `E`	Focus on translation editor.
`Ctrl` + `U` or `Cmd` + `U`	Focus on comment editor.
`Ctrl` + `M` or `Cmd` + `M`	Shows Automatic suggestions tab.
`Ctrl` + `1` to `Ctrl` + `9` or `Cmd` + `1` to `Cmd` + `9`	Copies placeable of a given number from source string.
`Ctrl` + `M` followed by `1` to `9` or `Cmd` + `M` followed by `1` to `9`	Copy the machine translation of a given number to current translation.
`Ctrl` + `I` followed by `1` to `9` or `Cmd` + `I` followed by `1` to `9`	Ignore one item in the list of failing checks.
`Ctrl` + `J` or `Cmd` + `J`	Shows the Nearby strings tab.
`Ctrl` + `S` or `Cmd` + `S`	Focus on search field.
`Ctrl` + `O` or `Cmd` + `O`	Copy the source string.
`Ctrl` + `Y` or `Cmd` + `Y`	Toggle the Needs editing checkbox.
`→`	Browse the next translation string.
`←`	Browse the previous translation string.

Translation

Glossary

String information

Flags

Details

Unit identifier

Source string location

String age

Last updated

Source string age

Translation file AsciiDoc file