摘要: Collection coll = new ArrayList();coll.add(123);coll.add(456);Collection coll1 = new ArrayList();coll1.add(123);coll.removeAll(coll1);System.out.print 阅读全文
posted @ 2021-12-07 15:23 Boerk 阅读(83) 评论(0) 推荐(0)