问题现象DockerPreferences选项中勾选”EnabelKubernetes”启用K8S，但其一直处于starting状态，无法正常使用。原因启用Kubernetes功能，Docker需要从镜像仓库拉取Kubernetes相关镜像。由于国内访问DockerHub网速太

PHP简写三目运算符实现二选一(https://www.oschina.net/action/GoToLink?urlhttp%3A%2F%2Fblog.lmlphp.com%2Farchives%2F145%2FShorthand_TRINOCULAR_operators_in_PHP_to_realize_a_second_election_alt

先下载spring，这里是官方的spring版本列表，http://repo.spring.io/release/org/springframework/spring/找到3.2.6，点击进去，选第一个，下载下来!(http://static.oschina.net/uploads/space/2014/0610/155722_rG7L_1188

打开dconf系统配置编辑器搜索suspend取消勾选ubuntulockonsuspend.!(http://static.oschina.net/uploads/space/2015/1210/230110_qcqz_237198.png)如果要在右上角的电源菜单中显示suspend按钮的话,使用firef