例如：Map<String, Object> map = new HashMap<String, Object>();map.put("name", "ZK");map.put("age", 13);Map<String, Object> map2 = new HashMap<String, Object>();map2.put("name", "ZA");map2.put("age", 15);Map<String, Object> map3 = new HashMap<String, Object>();map3.put("name", "CX");map3.put("age", 20);Map<String, Object> map4 = new HashMap<String, Object>();map4.put("name", "CX");map4.put("age", 18);List<Map<String, Object>> list = new ArrayList<Map<String,Object>>();list.add(map);list.add(map2);list.add(map3);list.add(map4);在這樣的List中如何先按name 字母順序正序，然后按age 數字倒序，生成一個新的List？