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mysql查询语句优化
用explain优化了一个营业日汇总报表的查询。将一处type为all的查询改为range。sql是一个报表使用:EXPLAIN SELECT DATE_FORMAT(t1.business_date,'%Y-%m-%d') AS business_date, IF(t3.people_num>0,...
分类:数据库   时间:2014-12-05 18:56:00    阅读次数:216
UVA 12186 Another Crisis(树形DP)
A couple of years ago, a new world wide crisis started, leaving many people with economical problems. Some workers of a particular company are trying to ask for an increase in their salaries. The com...
分类:其他好文   时间:2014-12-04 21:40:20    阅读次数:289
Slenium_java_4 Try demo on 12306.cn (2)
I was too optimistic.It is take several days working on the demo.. The intresting thing is when I finished the demo, I understand how people make a ro...
分类:编程语言   时间:2014-12-04 00:41:10    阅读次数:219
javascript+css3简单的手风琴效果
javascript+css3简单的手风琴效果 Landscapes People Nature Urban Abstract
分类:编程语言   时间:2014-12-03 14:12:05    阅读次数:159
javascript:利用Object.create()方法创建对象
在javascript里面,我们知道有两种常见的创建对象的方法,一种是使用对象直接量:对象直接量是由若干值/键对组成的映射表,值/键对用逗号”,“分隔开,整个部分用花括号”{}“括起来。例如:var empty={}; var people = { name:'kobe', age:'...
分类:编程语言   时间:2014-12-02 20:44:27    阅读次数:164
ural 2030
Awesome Backup System Time Limit:2000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Practice URAL 2030 Description It is known that all people can be d...
分类:其他好文   时间:2014-12-02 00:07:57    阅读次数:281
MVC中使用ajax传递json数组
解决方法去www.json.org下载JSON2.js再调用JSON.stringify(JSONData)将JSON对象转化为JSON串。var people = [{ "UserName": "t1", "PassWord": "111111", "Sex": "男" }, { "UserNam...
分类:编程语言   时间:2014-12-01 14:11:00    阅读次数:162
老板该如何正确的犒赏程序员(转)
英文原文:How to reward skilled coders with something other than people management 你手下有一群很出色的程序员,他们都非常想在事业上取得进步。你的这个团队成绩斐然,这是他们双手创造的,你知道这些,你想奖赏他们——为他们所做...
分类:其他好文   时间:2014-11-28 14:22:31    阅读次数:160
python 学习笔记之条件循环等语句
赋值语句普通赋值:>>> x,y,z = 1,2,3>>> print x,y,z1 2 3>>> x,y = y,x>>> print x,y2 1元组(序列)解包赋值:>>> a = (1,2,3)>>> x,y,z = a>>> x1字典赋值:>>> people = {"name":"cq"...
分类:编程语言   时间:2014-11-27 01:28:13    阅读次数:203
zoj2319Beautiful People Dp
最长上升子序列的nlogn的解法,不过要注意的是 x按从小到大排序,y要按从大到小排序。对于同样的x,在维护的单调数组中y应该保留较小的那个。#include#include#include#include#include#include#include#includeusing namespace...
分类:其他好文   时间:2014-11-26 22:35:18    阅读次数:161
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