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Linux下有线无线网络配置------命令模式
1. 列出启用网络设备的所有信息:ifconfig2. 将网络设备设置为启用或者不启用 不启用设备eth0ifconfig eth0 down 启用设备eth0: Will bring eth0 up if it is currently down.ifup eth0 停止设备eth0:Wil...
分类:系统相关   时间:2014-11-16 20:02:14    阅读次数:144
因host命令导致无法正常SHUTDOWN的实验
SHUTDOWN有几个参数可以使用: SHUTDOWN NORMAL:NORMAL也是默认的子句,执行的条件是 No new connections are allowed after the statement is issued. Before the database is shut down, the database waits for all currently connec...
分类:其他好文   时间:2014-11-13 09:24:59    阅读次数:234
git报错
1.执行 git pull 的时候,出现 如下 错误: If no other git process is currently running, this probably means a git process crashed in this repository earlier. Make sure no other git process is runnin...
分类:其他好文   时间:2014-11-12 12:05:18    阅读次数:164
Dropbox电面面经
他家电面有2轮,等待onsite。。。 电面1: 国人MM面的,这点感觉很难得。统计最近5分钟的点击量,实现hit和getHit两个函数。这题是他家高频题,我用deque实现的,hit的均摊时间是O(1),觉得应该差不多最优了吧。 后来要求写个并行程序,忘记问是写共享内存的还是分布式的了,写的有点卡,有时候纠结到底用lock还是用多个local copy,感觉设计起来其实就是CAP理论的实践...
分类:其他好文   时间:2014-11-11 14:26:40    阅读次数:199
ZOJ 2853 Evolution[ 矩阵快速幂 ]
传送门:ZOJ 1853 Description Evolution is a long, long process with extreme complexity and involves many species. Dr. C. P. Lottery is currently investigating a simplified model of evolution: cons...
分类:其他好文   时间:2014-11-11 09:26:23    阅读次数:239
Another app is currently holding the yum lock; waiting for it to exit
用yum安装软件提示的解决方法:[root@centosf2beauty]#yuminstallgccLoadedplugins:fastestmirrorExistinglock/var/run/yum.pid:anothercopyisrunningaspid1479.Anotherappiscurrentlyholdingtheyumlock;waitingforittoexit...Theotherapplicationis:yumMemory:55MRSS(355MBVSZ..
分类:移动开发   时间:2014-11-10 18:13:19    阅读次数:236
sicily 1003. Hit or Miss
DescriptionOne very simple type of solitaire game known as "Hit or Miss" (also known as "Frustration," "Harvest," "Roll-Call," "Talkative", and "Treiz...
分类:其他好文   时间:2014-11-09 12:30:26    阅读次数:247
解决Using 1.7 requires compiling with Android 4.4 (KitKat); currently using API 4
有时候我们可能需要将项目的版本降低,比如4.4降低到2.2这样的,可能会遇到类似于这样的错误Using 1.7 requires compiling with Android 4.4 (KitKat); currently using API 4总之就是jdk的问题了,解决方案是:Righ clic...
分类:移动开发   时间:2014-11-08 16:33:33    阅读次数:198
removeTask
SystemUI中,Home键调出小刷子杀最近任务,整个流程从其RecentsPanelView.java开始:View Codepublic void handleSwipe(View view) {...// Currently, either direction means the same ...
分类:其他好文   时间:2014-11-08 11:39:15    阅读次数:247
.net 运行于Linux
Pipelight is a special browser plugin which allows one to use windows only plugins inside Linux browsers. We are currently focusing on Silverlight, Fl...
分类:Web程序   时间:2014-11-07 14:21:54    阅读次数:191
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