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What does %~dp0 mean, and how does it work?
... - expands %I to a file extension only
%~sI - expanded path contains short names only
%~aI - expands %I to file attributes of file
%~tI - expands %I to date/time of file
%~zI - expands %I to size of file
%~$PATH:I - searches the directories listed in the PATH
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Hidden features of Python [closed]
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Chaining comparison operators:
>>> x = 5
>>> 1 < x < 10
True
>>> 10 < x < 20
False
>>> x < 10 < x*10 < 100
True
>>> 10 > x <= 9
True
>>> 5 == x ...
Expanding tuples into arguments
...ted May 27 at 13:31
Nicolas Gervais
13.3k77 gold badges3434 silver badges5656 bronze badges
answered Jan 3 '10 at 2:24
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Can you control how an SVG's stroke-width is drawn?
...the inset and offset of a shape. It's not perfect (need to keep checking against latest browser versions) but it does accurately provide a shapes outer width for now.
– Steve
Sep 2 '11 at 10:02
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...陌生，socket一般用于网络通信，可认为它是利用网间通信设施实现进程间通信。进程通信之前，双方各自创建一个端点，否则无法建立联系更不能进行通信。一个完整的socket有网络协议、网络地址、网络端口三个属性，然后由操...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...nished my check on INNODB from 10 checks I can tell that it's 26(2query) against 9.2(1 query) SELECT SQL_CALC_FOUND_ROWS tblA.*, tblB.id AS 'b_id', tblB.city AS 'b_city', tblC.id AS 'c_id', tblC.type AS 'c_type', tblD.id AS 'd_id', tblD.extype AS 'd_extype',...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e, 则Lua会按照__index所定义的函数逻辑查找）
有了以上的基础，我们可以来说说所谓的Lua的面向对象。
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Person={}
function Person:new(p)
local obj = p
if (obj == ni...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...就是我对php的初探，3中io模型的代码确定有效，可以再次基础上做server或者gateway服务器的开发，第一次发贴，写的匆忙，还有很多东西没有说明，不足之处望请见谅，以后持续编辑此贴！希望能和大家沟通交流！
参考资料：
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从Code Review 谈如何做技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...花时候阅读一下《代码大全》这本书（当然，还要读很多基础知识的书）。
次当其冲的是——“结果更重要”，也就是说，做出来更重要，做漂亮不重要。因为我的KPI和年终奖based on how many works I’ve done！而不是How perfect they...
List Git aliases
...to yield lines starting with alias in case some configurations somehow contains keyword alias: git config --list | grep -E '^alias'
– MasterMind
Feb 2 '18 at 10:19
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