_map_citr _map_itr _map_key2entry _size _values begin begin clear const_iterator empty end end EntryType erase erase find find HashMap insert insert iterator operator== operator[] size

erase() [1/2] template<class KeyType , class MappedType , class Hash = std::hash<KeyType>, class Pred = std::equal_to<KeyType>> void erase ( const KeyType &  key ) 移除指定键值的 entry 移除指定键值的 entry 参数 [in] key 指定的键值