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TCP 的那些事儿（上） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...《TCP/IP 详解 卷1：协议》（当然，你也可以去读一下RFC793以及后面N多的RFC）。另外，本文我会使用英文术语，这样方便你通过这些英文关键词来查找相关的技术文档。
之所以想写这篇文章，目的有三个，
一个是想锻炼一下...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Android微信智能心跳方案前言：在13年11月中旬时，因为基础组件组人手紧张，Leo安排我和春哥去广州轮岗支援。刚到广州的时候，Ray让我和春哥对Line和WhatsApp的心跳...
前言：在13年11月中旬时，因为基础组件组人手紧张，Leo安...
Storyboard warning: prototype table cells must have reuse identifiers
... this warning from storyboard - prototype table cells must have reuse identifiers.
11 Answers
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How to line-break from css, without using ?
...mark-up there is - the <br /> element exists for a very good reason. If you want the line break because they are separate paragraphs, then simply mark them up as separate paragraphs.
– Rowland Shaw
Apr 24 '10 at 8:11
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Splitting string with pipe character (“|”) [duplicate]
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answered Feb 3 '14 at 10:20
devnulldevnull
98.1k2727 gold badges195195 silver badges201201 bronze badges
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SQL Server loop - how do I loop through a set of records
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This is what I've been doing if you need to do something iterative... but it would be wise to look for set operations first.
select top 1000 TableID
into #ControlTable
from dbo.table
where StatusID = 7
declare @TableID int
while exists (select * from...
Reducing memory usage of .NET applications?
...e MSDN blog post Working set != actual memory footprint is all about demystifying the working set, process memory and how to perform accurate calculations on your total in-RAM consumption.
I will not say that you should ignore the memory footprint of your application -- obviously, smaller and more ...
Regex Last occurrence?
...f a non capturing group. The . is any character, this checks any character if it is not followed by a ``.
– stema
Dec 4 '11 at 12:18
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INSERT with SELECT
...the parenthesis aren't required around field names. But when you start specifying values on top of the select, apparently you need () around the field names.
– Kyle
Mar 22 '11 at 12:53
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Pandas DataFrame Groupby two columns and get counts
...).reset_index().groupby('col2')[[0]].max()
Out[56]:
0
col2
A 3
B 2
C 1
D 3
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