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Linux -- cp
CP(1) User Commands CP(1)NAME cp - copy files and directoriesSYNOPSIS复制一个文件到另一个地方,注意要加上文件名 cp [OPTION]... [-T] SOURCE DEST 复制多个文件到另一个目录中 cp [OP...
分类:系统相关   时间:2014-08-30 11:11:09    阅读次数:273
Linux -- mv
MV(1) User Commands MV(1)NAME mv - move (rename) filesSYNOPSIS移动单个文件: mv [OPTION]... [-T] SOURCE DEST #移动一个文件到另一个地方,其实这是个重命名的用法移动多个文件或目录: mv [O...
分类:系统相关   时间:2014-08-30 11:06:09    阅读次数:348
Linux -- w
W(1) User Commands W(1)NAME w - Show who is logged on and what they are doing.SYNOPSIS w [options] user [...]DESCRIPTION w displays information about ...
分类:系统相关   时间:2014-08-30 09:55:39    阅读次数:260
HDU 1019 Least Common Multiple
题解:求n个数的最小公倍数,一个一个算就可以了,需要注意的是LCM先除GCD再乘,因为先乘有可能会超范围,1WA的代价。#include int T,n,a,b;int gcd(int a,int b){if(b==0)return a;return gcd(b,a%b);}int main(){ ...
分类:其他好文   时间:2014-08-30 08:43:49    阅读次数:185
hdu3713 Double Maze
Problem DescriptionUnlike single maze, double maze requires a common sequence of commands to solve both mazes. See the figure below for a quick unders...
分类:其他好文   时间:2014-08-30 01:14:48    阅读次数:329
OCP试题解析之053-61 RMAN set command id to
61.You frequently have multiple RMAN sessions running, and you want to be able to easily identify each job via the CLIENTJNFO column of the dynamic performance view V$SESSION. What RMAN command can ...
分类:其他好文   时间:2014-08-29 20:08:08    阅读次数:261
mysql为用户添加远程连接权限
首先登录你的的mysql mysql -uroot -p登陆成功后出现以下信息Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 8Server version: 5.1.73-lo....
分类:数据库   时间:2014-08-29 19:46:48    阅读次数:245
spoj LCMSUM sigma(lcm(i,n));
Problem code: LCMSUMGiven n, calculate the sum LCM(1,n) + LCM(2,n) + .. + LCM(n,n), where LCM(i,n) denotes the Least Common Multiple of the integers i...
分类:其他好文   时间:2014-08-28 22:23:56    阅读次数:347
iOS中的NSTimer 和 Android 中的Timer
首先看iOS的,Scheduling Timers in Run LoopsA timer object can be registered in only one run loop at a time, although it can be added to multiple run loop m...
分类:移动开发   时间:2014-08-28 13:09:39    阅读次数:416
Linux -- xxd 整理自man 手册 (MARK)
XXD(1) General Commands Manual XXD(1)NAME xxd - make a hexdump or do the reverse.SYNOPSIS xxd -h[elp] xxd [options] [infile [outfile]] xxd -r[evert] [...
分类:系统相关   时间:2014-08-27 23:16:18    阅读次数:665
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