大约有 3,346 项符合查询结果（耗时：0.0194秒） [XML]
Does MySQL ignore null values on unique constraints?
...ropose is almost exactly what mysql does behind the scenes already. Why re-invent the wheel if this functionality is built in?
– ProfileTwist
Mar 12 '14 at 6:37
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大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...。我们其实很容易可以推倒，一个理财产品如果投放游戏社区这种渠道，其运营效果可能并不会太好，可如果换成彩票、博彩，可能效果就很好；同理，传奇这一类的游戏的宣传与活动如果投放到女性社区平台，其效果几乎也可...
Best practice to call ConfigureAwait for all server-side code
...Await; when async was added, they reused the existing Task type instead of inventing a new Future.
– Stephen Cleary
Nov 21 '12 at 13:48
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Parsing command-line arguments in C?
... much simpler than other approaches is here:
http://www.decompile.com/not_invented_here/opt/
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PHP大潮将至 PHP近年发展分析 - 创意 - 清泛网 - 专注C/C++及内核技术
...到位。
关于PHP应用的安全，则得益于PHP是开源的。在PHP社区有500多个PHP编写工程师在支持着PHP，源代码的公布为它赢得广泛的支持。当然，在讲到PHP的安全性的时候，不能不提到LAMP架构。基于LAMP平台的稳定性从它在国内各大...
What is an efficient way to implement a singleton pattern in Java? [closed]
...to the Bar object that is (still) in an incorrect state.
This pattern was invented for performance optimization. But this is really not a real concern anymore. The following lazy initialization code is fast and -more importantly- easier to read.
class Bar {
private static class BarHolder {
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中关村服务辐射百万创业者 - 资讯 - 清泛网 - 专注C/C++及内核技术
...知名的创业空间品牌：优客工场、中关村创业大街、小样社区、科创慧谷、Binggo咖啡，将以“园区+街区+社区”三区联动、“产业+创业+商业+物业”四业混合、“创业+工作+学习+居住+社交+消费”六维并举的理念，打造多形态创...
How do pointer to pointers work in C?
...id. “The song really is ‘A-sitting On A Gate’: and the tune's my own invention.”
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Haskell: How is pronounced? [closed]
...Apple" is a good example. By the way, Monad return is Applicative pure. No inventions here.
– dmvianna
May 31 '16 at 5:40
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...tely different ecosystem self-tuned around APIs and Objects. That's why we invented PowerShell.
What I think you'll find is that there will be lots of occasions when text-processing won't get you what you want on Windows. At that point, you'll want to pick up PowerShell. NOTE - it is not an all or ...