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【MongoDB】The high query operation of MongoDB(三)
1, Sort  Needless to say, mongodb also support to sort data. THe positive one means sorting by asc order and negetive means by desc. 2. Group The grammar of group: Description Of Argument:...
分类:数据库   时间:2014-09-23 02:47:33    阅读次数:267
android开发图片分辨率问题解决方案
dpi是什么呢? dpi是“dot per inch”的缩写,每英寸像素数。 四种密度分类: ldpi (low), mdpi (medium), hdpi (high), and xhdpi (extra high) 一般情况下的普通屏幕:ldpi是120,mdpi是160,hdpi是240,xh...
分类:移动开发   时间:2014-09-22 14:00:32    阅读次数:243
【MongoDB】The high query operation of MongoDB(二)
In the last blog, there are three query condition to be described. In the blog, we wil...
分类:数据库   时间:2014-09-22 03:37:02    阅读次数:255
【MongoDB】The high Query operation of MongoDB(一)
In the last blog, we talked about the basic operation of MongoDB, including insert, query, remove and update. Now in this blog, we will further hava a good understanding of  querying operation.  At f...
分类:数据库   时间:2014-09-22 01:35:41    阅读次数:233
HDU - 5023 A Corrupt Mayor's Performance Art(区间修改)
Problem Description Corrupt governors always find ways to get dirty money. Paint something, then sell the worthless painting at a high price to someone who wants to bribe him/her on an auction, this ...
分类:其他好文   时间:2014-09-20 22:56:29    阅读次数:258
HDU 5023 A Corrupt Mayor's Performance Art (线段树)
Problem Description Corrupt governors always find ways to get dirty money. Paint something, then sell the worthless painting at a high price to someone who wants to bribe him/her on an auction, this ...
分类:其他好文   时间:2014-09-20 20:23:09    阅读次数:289
C语法归约之变量声明和定义(0)
采用LR(1)技术,写了一个C语言的语法归约器!之所以用LR(1)是因为gcc,tcc,ucc和lcc跟商量好似的,清一色的用的LL归约技术,书上也是讲的跟天花一样漂亮,如果再使用LL技术实在是炸不出价值来,源码一抓一大把,看看就够了,重写必要性不大!另外,书中的LR技术讲的项集又是大的没谱,工具YACC自动生成又不知道它玩的猫腻!最终用LR(1)自搞了一套方法high起来,效果还不错^!^...
分类:其他好文   时间:2014-09-20 14:07:27    阅读次数:220
heartbeatv1 版讲解及实现nfs文件共享
高可用基础知识讲解 一、高可用集群的定义 高可用集群,英文原文为High Availability Cluster,简称HACluster,简单的说,集群(cluster)就是一组计算机,它们作为一个整体向用户提供一组网络资源。这些单个的计算机系统 就是集群的节点(node)。 高可用集群的出现是为...
分类:其他好文   时间:2014-09-20 02:15:46    阅读次数:287
High Performance Browser Networking
Table of Contents ForewordPreface About This BookConventions Used in This BookSafari® Books OnlineHow to Contact UsContent Updates May 23, 2014 I. Networking 101 1. Primer on Latency an...
分类:Web程序   时间:2014-09-18 22:20:04    阅读次数:225
HDU-4031-Attack(树状数组)
Problem Description Today is the 10th Annual of “September 11 attacks”, the Al Qaeda is about to attack American again. However, American is protected by a high wall this time, which can be treatin...
分类:其他好文   时间:2014-09-18 00:52:23    阅读次数:268
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