摘要: 懒汉式-非线程安全 public class LazyNoSafe { private static LazyNoSafe instance; public static LazyNoSafe getInstance() { if (instance == null) { instance = ne 阅读全文
posted @ 2018-01-24 23:57 zeling 阅读(158) 评论(0) 推荐(0) 编辑