参考:
2. 枚举hash_map所有元素:http://stackoverflow.com/questions/8871472/how-to-get-all-keys-from-stl-hash-map
hash_map<type>::begin()/end(), hash_map<type>::iterator
3.
参考:
2. 枚举hash_map所有元素:http://stackoverflow.com/questions/8871472/how-to-get-all-keys-from-stl-hash-map
hash_map<type>::begin()/end(), hash_map<type>::iterator
3.