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摘要: PyDev for Eclipse, 经过测试,一般在线安装会失败(不能访问某些网站所致)以下为离线安装步骤1 下载 PyDev 2.8.2, 链接:http://sourceforge.net/projects/pydev/files/2 解压 PyDev 2.8.2 文件到 ...\MyEcli... 阅读全文
posted @ 2014-07-24 16:13 emanlee 阅读(2961) 评论(0) 推荐(0)
摘要: f <- function(start_time) { start_time <- as.POSIXct(start_time) dt <- difftime(Sys.time(), start_time, units="secs") # Since you only want the H:M... 阅读全文
posted @ 2014-07-22 18:13 emanlee 阅读(9283) 评论(0) 推荐(0)
摘要: cat > WHAT_EVER_YOU_WANT.sh#!/usr/bin/ksh#memory calculatorum=`svmon -G | head -2|tail -1| awk {'print $3'}`um=`expr $um / 256`tm=`lsattr -El sys0 -a 阅读全文
posted @ 2014-07-19 15:11 emanlee 阅读(868) 评论(0) 推荐(0)
摘要: INSERT INTO table (a,b,c) VALUES (1,2,3) ON DUPLICATE KEY UPDATE c=c+1;INSERT 中 ON DUPLICATE KEY UPDATE的使用如果指定了ON DUPLICATE KEY UPDATE,并且插入行后会导致在一个UN... 阅读全文
posted @ 2014-07-19 12:48 emanlee 阅读(32989) 评论(0) 推荐(1)
摘要: string1.equals(string2) 比较字符串 substring()它有两种形式,第一种是:String substring(int startIndex)第二种是:String substring(int startIndex,int endIndex) 注意:从位置0开始,包含st 阅读全文
posted @ 2014-07-18 17:16 emanlee 阅读(493) 评论(0) 推荐(0)
摘要: int iValue = new Integer(strValue).intValue();String str = intObj.toString();int number = Integer.parseInt(str);public static Object read(String value... 阅读全文
posted @ 2014-07-18 14:39 emanlee 阅读(231) 评论(0) 推荐(0)
摘要: use Time::HiRes qw(time);use POSIX qw(strftime);my $t = time;my $date = strftime "%Y%m%d %H:%M:%S", localtime $t;$date .= sprintf ".%03d", ($t-int($t) 阅读全文
posted @ 2014-07-16 15:02 emanlee 阅读(2682) 评论(0) 推荐(0)
摘要: my $filename='/tmp/tmp.txt';open my $fh, '>', $filename;my $fd = fileno $fh;print readlink("/proc/$$/fd/$fd"); 阅读全文
posted @ 2014-07-15 13:46 emanlee 阅读(279) 评论(0) 推荐(0)
摘要: Perl File Handling: open, read, write and close files # Opening files Solution 1: Opening a file in perl open FILE, "filename.txt" or die $!; # read o 阅读全文
posted @ 2014-07-15 08:32 emanlee 阅读(1374) 评论(0) 推荐(0)
摘要: Arithmetic OperatorsOperatorDescription+addition-subtraction*multiplication/division^ or ** exponentiationx %% y modulus (x mod y) 5%%2 is 1x %/% y in... 阅读全文
posted @ 2014-07-12 19:09 emanlee 阅读(1169) 评论(0) 推荐(0)
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