摘要: 1 //饿汉式 2 class Single 3 { 4 private static final Single s= new Single(); 5 private Single(){} 6 public static Single getInstance() 7 { 8 return s; 9 } ... 阅读全文
posted @ 2018-11-14 21:12 草叶321 阅读(861) 评论(0) 推荐(0) 编辑