但是妳可以用java中的map,常用的是它的子類:HashMap。
public static void main(String[] args){ HashMap<String, String> hashMap = new HashMap<String, String>(); hashMap.put("cn","中國"); hashMap.put("us","米國"); hashMap.put("en","英國"); System.out.println(hashMap); System.out.println("cn"+hashMap.get("cn")); System.out.println(hashMap.containsKey("cn")); System.out.println(hashMap.keySet()); System.out.println(hashMap.isEmpty()); //hashMap.remove("cn"); //System.out.println(hashMap.containsKey("cn")); //使用Iterator遍歷HashMap Iterator it = hashMap.keySet().iterator(); while(it.hasNext()){ String key = (String) it.next(); System.out.println("key:"+key); System.out.println("value:"+hashMap.get(key)); } //使用Entry遍歷HashMap Set<Entry<String, String>> sets = hashMap.entrySet(); for(Entry<String,String> entry : sets){ System.out.println(entry.getKey()+", "); System.out.println(entry.getValue()); } }