public Set<Map.Entry<String, V>> entrySet()
    {
        Set<Map.Entry<String, V>> entrySet = new TreeSet<Map.Entry<String, V>>();
        StringBuilder sb = new StringBuilder();
        for (BaseNode node : child)
        {
            if (node == null) continue;
            node.walk(new StringBuilder(sb.toString()), entrySet);
        }
        return entrySet;
    }
public Set < Map . Entry < String , V > > entrySet ( ) { Set < Map . Entry < String , V > > entrySet = new TreeSet < Map . Entry < String , V > > ( ) ; StringBuilder sb = new StringBuilder ( ) ; for ( BaseNode node : child ) { if ( node == null ) continue ; node . walk ( new StringBuilder ( sb . toString ( ) ) , entrySet ) ; } return entrySet ; }
获取键值对集合

@return