大约有 47,000 项符合查询结果（耗时：0.0540秒） [XML]
What is a software framework? [closed]
...
424
I'm very late to answer it. But, I would like to share one example, which I only thought of to...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...
Erwin BrandstetterErwin Brandstetter
439k9696 gold badges809809 silver badges969969 bronze badges
...
Renaming a virtualenv folder without breaking it
...
148
You need to adjust your install to use relative paths. virtualenv provides for this with the --...
How to delete/unset the properties of a javascript object? [duplicate]
... (if you just create the global by assigning to it, e.g., window.varname = 42), you can delete that. But var creates an environment binding on the global object (window, in browsers), and those cannot be deleted.
– T.J. Crowder
Aug 3 '12 at 16:07
...
MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...往的主从模式因为MongoDB使用内存映射文件,所以必须使用64位版本。官方下载地址如下：http: www mongodb org downloads实验环境使用的Mongodb版本为mon 因为MongoDB使用内存映射文件,所以必须使用64位版本。
官方下载地址如下：http://www....
Most efficient conversion of ResultSet to JSON?
...
14 Answers
14
Active
...
How does password salt help against a rainbow table attack?
...
243
A public salt will not make dictionary attacks harder when cracking a single password. As you'v...
Convert hyphens to camel case (camelCase)
...
|
edited Dec 4 '13 at 11:53
Paolo Moretti
45.4k2121 gold badges9191 silver badges8888 bronze badges
...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...w.html#timezone-handling-improvements
So with my example from above:
In [4]: t = pd.date_range(start="2013-05-18 12:00:00", periods=2, freq='H',
tz= "Europe/Brussels")
In [5]: t
Out[5]: DatetimeIndex(['2013-05-18 12:00:00+02:00', '2013-05-18 13:00:00+02:00'],
...
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?
...
418
dispatch_once() is absolutely synchronous. Not all GCD methods do things asynchronously (case ...