Constructs a table, copying ``other``'s contained elements, hash function, and predicate, but using allocator `a`.
Constructs a table, copying ``other``'s contained elements, hash function, and predicate, but using allocator构造一个容器，复制 `other` 中的元素、哈希函数和谓词，但使用分配器 `a`.。
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Constructs a table, copying ``other``'s contained elements, hash function, and predicate, but using allocator构造一个容器，复制 `other` 中的元素、哈希函数和谓词，但使用分配器 `a`.。