public static void main(String[] args){
		Map<Word,Integer> demo=new HashMap<Word,Integer>();
		demo.put(new Word("你","n"), 1);
		demo.put(new Word("好","adj"), 2);
		demo.put(new Word("好","ad"), 3);
		demo.put(new Word("你","n"), 4);
		if(demo.containsKey(new Word("你","n"))){
			demo.put(new Word("我","n"), 5);
		}
		Iterator<Map.Entry<Word,Integer>> iter=demo.entrySet().iterator();
		while(iter.hasNext()){
			Map.Entry<Word, Integer> entry=iter.next();
			System.out.println(entry.getKey()+" "+entry.getValue());
		}
	}