1、利用迭代器进行迭代遍历: Set sets = new HashSet(); Iterator it = set.iterator(); while (it.hasNext()) { String str = (String)it.next(); System.out.println(str); } 2、for循环遍历: for (String str : sets) { System.out.println(str); } 3、foreach循环遍历: Set set = new HashSet(); for (Object obj: sets) { if(obj instanceof Integer){ int aa= (Integer)obj; }else if(obj instanceof String){ String aa = (String)obj } …….. } python学习网,大量的免费python视频教程,欢迎在线学习!