大约有 4,000 项符合查询结果（耗时：0.0138秒） [XML]
How do I encode/decode HTML entities in Ruby?
... Nokogiri::HTML.parse "foo bär"
a.text
=> "foo bär"
or
a = Nokogiri::HTML.parse "¡I'm highly annoyed with character references!"
a.text
=> "¡I'm highly annoyed with character references!"
...
How to calculate the number of occurrence of a given character in each row of a column of strings?
I have a data.frame in which certain variables contain a text string. I wish to count the number of occurrences of a given character in each individual string.
...
How to put a delay on AngularJS instant search?
...15 at 20:15
Michael Falck WedelgårdMichael Falck Wedelgård
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...
Printing without newline (print 'a',) prints a space, how to remove?
... answered Dec 21 '10 at 12:16
Pär WieslanderPär Wieslander
26.1k55 gold badges4747 silver badges5050 bronze badges
...
How to ignore the first line of data when processing CSV data?
I am asking Python to print the minimum number from a column of CSV data, but the top row is the column number, and I don't want Python to take the top row into account. How can I make sure Python ignores the first line?
...
jQuery $.ajax(), $.post sending “OPTIONS” as REQUEST_METHOD in Firefox
...ed Aug 19 '10 at 8:46
Juha PalomäkiJuha Palomäki
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TokuMX vs. MongoDB 性能对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
TokuMX vs. MongoDB 性能对比TokuDB 的ft tree 用在MongoDB产品TokuMX已经发布。MongoDB 在大量数据（比如1亿条记录）后，插入性能急剧下降。Tokutek数据带索引插入...TokuDB 的ft tree 用在MongoDB产品TokuMX已经发布。MongoDB 在大量数据（比如1亿条...
PHP操作MongoDB时的整数问题及对策 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
PHP操作MongoDB时的整数问题及对策本文所说的整数问题，其实并不是MongoDB的问题，而是PHP驱动的问题：MongoDB本身有两种整数类型，分别是：32位整数和64位整数，但旧版的PHP...本文所说的整数问题，其实并不是MongoDB的问题，而是P...
在MongoDB中模拟Auto Increment - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
在MongoDB中模拟Auto IncrementMySQL用户多半都有Auto Increment情结，不过MongoDB缺省并没有实现，所以需要模拟一下，编程语言以PHP为例，代码大致如下所示：<?phpfunct...MySQL用户多半都有Auto Increment情结，不过MongoDB缺省并没有实现，所以...
MongoDB sort排序、index索引教程 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...试看下mongodb的执行计划：
db.Indexing.find({name: "Denis"}).explain()，这个是看当查找Denis的执行情况，
结果如下：
{
"cursor" : "BasicCursor",
"isMultiKey" : false,
"n" : 0,
"nscannedObjects" : 0,
"nscanned" : 0, ...