package excel; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class List1 { public static void main(String[] args) { Map map = new HashMap<String, Object>(); map.put("1", "fds"); map.put("2", "valu"); List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); list.add(map); for (Map<String, Object> m : list) { for (String k : m.keySet()) { System.out.println(k + " : " + m.get(k)); } } } } map的for循环中for(Map.Entry<String, Object> entry : paraMap.entrySet())