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```c++ template<class K> bool insert(K&& k); ```
```c++ template<class Kk=""> bool insert(K&& k); ```amp;&amp; k); ```</class>
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Transparent Insert
Transparent Insert透明插入
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:979
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Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`.
Requires:要求：;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`.支持移动插入。
返回值：;; 若成功插入元素则返回 `true`。
并发特性：;; 会阻塞当前对象 `*this` 的扩容重哈希操作。
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Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.
Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.当且仅当哈希表中不存在键等价的元素时，才将 `obj` 插入到哈希表中。
:972
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```c++ bool insert(value_type&& obj); ```
```c++ bool insert(value_type&&amp;&amp; obj); ```
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Move Insert
Move Insert移动插入
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:965
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Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`.
Requires:要求：;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`.支持拷贝插入。
返回值：;; 若成功插入元素则返回 `true`。
并发特性：;; 会阻塞当前对象 `*this` 的扩容重哈希操作。
:961
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Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.
Inserts `obj` in the table if and only if there is no element in the table with an equivalent key.当且仅当哈希表中不存在键等价的元素时，才将 `obj` 插入到哈希表中。
:958
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```c++ bool insert(const value_type& obj); ```
```c++ bool insert(const value_type&amp; obj); ```
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Copy Insert
Copy Insert复制插入
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:951
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Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`.
Requires:要求：;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`.可由 `args` 构造。
返回值：;; 若成功插入元素则返回 `true`。
并发特性：;; 会阻塞当前对象 `*this` 的扩容重哈希操作。
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Inserts an object, constructed with the arguments `args`, in the table if and only if there is no element in the table with an equivalent key.
Inserts an object, constructed with the arguments `args`, in the table if and only if there is no element in the table with an equivalent key.当且仅当哈希表中不存在键等价的元素时，才使用参数 `args` 构造对象并插入到哈希表中。
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```c++ template<class... Args> bool emplace(Args&&... args); ```
```c++ template<class... Aargs=""> bool emplace(Args&&amp;&amp;... args); ```</class...>
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emplace
emplace原地构造
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Modifiers
Modifiers修改器
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:935
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Returns:;; `size()` of the largest possible table.
Returns:;; `size()` of the largest possible table.返回值：;; 哈希表支持的最大元素数量。
06/05/2026

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