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Map, filter and reduce
To add up all the numbers in a list, you can use a loop like this: Total is initialized to 0. Each time through the loop, x gets one element...
分类:其他好文   时间:2014-07-16 19:29:14    阅读次数:234
MySQL 通配符学习小结
MySQL 通配符SQL的模式匹配同意你使用“_”匹配不论什么单个字符,而“%”匹配随意数目字符(包含零个字符)。在 MySQL中,SQL的模式缺省是忽略大写和小写的。以下显示一些样例。注意在你使用SQL模式时,你不能使用=或!=;而使用LIKE或NOT LIKE比較操作符。为了找出以“b”开头的名...
分类:数据库   时间:2014-07-16 19:13:33    阅读次数:279
【原】训练自己haar-like特征分类器并识别物体(1)
本系列文章旨在学习如何在opencv中基于haar-like特征训练自己的分类器,并且用该分类器用于模式识别。该过程大致可以分为一下几个大步骤:1.准备训练样本图片,包括正例及反例样本2.生成样本描述文件3.训练样本4.目标识别=================本文主要对步骤1、步骤2进行说明。1....
分类:其他好文   时间:2014-07-16 18:24:00    阅读次数:302
Tuples are immutable
A tuple is a sequence of values. The values can be any type, and they are indexed by integers, so in that respect tuples are a lot like lists. The imp...
分类:其他好文   时间:2014-07-16 18:17:44    阅读次数:213
SQL--from w3c school
1、查select row from table;select * from table;2、利用where子句查select row from table where a(=、、>、=、<=、between、like)b;select row from table where A AND B;se...
分类:数据库   时间:2014-07-16 17:50:45    阅读次数:293
第1讲:The nature of Testing--测试的本质
*********声明:本系列课程为Cem Kanner的软件黑盒测试基础的笔记版************** What's A COMPUTER PROGRAM? Textbooks often define a "computer program" like this: A program is a set of instructions(指令) for a computer. Tha...
分类:其他好文   时间:2014-07-16 10:58:18    阅读次数:196
某表含有N个字段超精简模糊查询方法
我们在做多个字段模糊查询时,是不是觉得非常麻烦?比如我要模糊查询某表多个字段存在某数据时,如下select * from table where a like '%key%' or b like '%key%'orc like '%key%'..........上面的语句不但长,而且写起来好麻烦。我...
分类:其他好文   时间:2014-07-15 10:09:51    阅读次数:231
It's like cheap ghd nz
It's like cheap ghd nz any type of those remodeling will show when sufferers are removed off their business opportunities as well as their loved ones ...
分类:其他好文   时间:2014-07-15 08:05:21    阅读次数:300
Dictionaries
A dictionary is like a list, but more general. In a list, the indices have to be integers; in a dictionary they can be (almost) any type. You can thin...
分类:其他好文   时间:2014-07-14 23:26:50    阅读次数:329
寻找房间中心zz
Finding the Centroid of a Room Boundary It's been a while since my last post and I'm sure most of you were like... "Where the hell is Don!".... it's o...
分类:其他好文   时间:2014-07-14 10:35:17    阅读次数:247
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