List冒泡排序

Collections.sort(list_Map, new Comparator
 
  >() {
				public int compare(Map
  
    o1, Map
   
     o2) { int comment_num1 =Integer.parseInt(o1.get("comment_num").toString()); int comment_num2 =Integer.parseInt(o2.get("comment_num").toString()); if(comment_num1