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centos6.4安装javajdk1.8
查看已安装的java 1 [root@s0 Soft]# rpm -qa | grep java 2 tzdata-java-2013c-1.el6.noarch 3 java-1.6.0-openjdk-1.6.0.0-1.61.1.11.11.el6_4.x86_64 4 java-1.7.0-...
分类:编程语言   时间:2014-06-25 12:37:09    阅读次数:652
leetcode--Edit Distance
Given two wordsword1andword2, find the minimum number of steps required to convertword1toword2. (each operation is counted as 1 step.)You have the fol...
分类:其他好文   时间:2014-06-25 11:14:15    阅读次数:218
LeetCode:Substring with Concatenation of All Words (summarize)
题目链接You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a conca...
分类:其他好文   时间:2014-06-25 09:42:27    阅读次数:230
tcp keepalive选项
之前一直对tcp keepalive选项理解有误,以为通过setsockopt函数设置SO_KEEPALIVE和相关参数后该socket则使用设置的keepalive相关参数否则使用系统默认的:keepalive配置(如下)root@xxx-KVM:/# sysctl -a | grep keepn...
分类:其他好文   时间:2014-06-25 09:37:09    阅读次数:238
LeetCode: Longest Consecutive Sequence [128]
【题目】 Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given [100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is [1, 2, 3, 4]. Return its length: 4. Your algorithm should run...
分类:其他好文   时间:2014-06-25 07:55:42    阅读次数:244
LeetCode: Sum Root to Leaf Numbers [129]
【题目】 Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 which represents the number 123. Find the total sum of all root-to-leaf numbers. For example, 1 ...
分类:其他好文   时间:2014-06-25 07:32:27    阅读次数:209
清除php BOM头
查找包含BOM头的文件,命令如下:grep-r-I-l$‘^\xEF\xBB\xBF‘./这条命令会查找当前目录及子目录下所有包含BOM头的文件,并把文件名在屏幕上输出。但是,删除BOM头,网上找到的命令大多不能用,比较常见的命令是:grep-r-I-l$‘^\xEF\xBB\xBF‘/path|xargssed-i‘s/^\xEF\xBB\xBF//..
分类:Web程序   时间:2014-06-25 06:40:16    阅读次数:266
iframe jquery
$(window.frames[2].document.body).find(‘#strTaketime‘).val() $(window.frames[‘f‘].document.body).find(‘#strTaketime‘).val() $(top.document.body).find(‘#strTaketime‘).val()
分类:Web程序   时间:2014-06-25 06:34:52    阅读次数:191
hardware information
常用命令整理如下:查看主板的序列号:dmidecode|grep-i’serialnumber’用硬件检测程序kuduz探测新硬件:servicekudzustart(orrestart)查看CPU信息:cat/proc/cpuinfo[dmesg|grep-i‘cpu‘][dmidecode-tprocessor]查看内存信息:cat/proc/meminfo[free-m][vmstat]查看板卡信息:c..
分类:其他好文   时间:2014-06-25 06:21:07    阅读次数:334
ibatis cannot find <sql> pattern
"Could not find SQL statement to include with refid xxx"A: 认真把每个用到xxx的地方都看一遍
分类:数据库   时间:2014-06-25 00:58:20    阅读次数:216
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