大约有 47,000 项符合查询结果(耗时:0.0508秒) [XML]
When does static class initialization happen?
...rivate static methods used to instantiate private static fields called (in order) at that instant?
3 Answers
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Script entire database SQL-Server
...p level script, certainly not a script to create all tables, procs, udfs, .etc.
7 Answers
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How to get first record in each group using Linq
...y element.F1
into groups
select groups.OrderBy(p => p.F2).First();
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Pros and cons of Java rules engines [closed]
...stablished algorithms (such as forward chaining and the Rete algorithm) in order to scale up to non-trivial problems. If you are simply evaluating expressions, an existing library such as MVEL may be useful.
– jevon
Feb 28 '11 at 6:19
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Python: Find in list
...ilter(fulfills_some_condition, lst)
in Python 2. Here you can see higher-order functions at work. In Python 3, filter doesn't return a list, but a generator-like object.
Finding the first occurrence
If you only want the first thing that matches a condition (but you don't know what it is yet), it...
How do I add tab completion to the Python shell?
...e.py shell , I get an InteractiveConsole shell - I can use tab completion, etc.
9 Answers
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Writing Unicode text to a text file?
...al, use UTF-8 for writing to files (we don't even have to worry about byte-order with utf-8).
encoding = 'utf-8'
utf-8 is the most modern and universally usable encoding - it works in all web browsers, most text-editors (see your settings if you have issues) and most terminals/shells.
On Windows...
How to filter git diff based on file extensions?
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Mine worked with brace expansion, a la git diff -- *.{c,h,etc}
– Matt Fletcher
Nov 25 '13 at 16:03
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Styles.Render in MVC4
... build "skins" or separate style models for say different devices, themes, etc. like so:
<link rel="stylesheet" href="~/UI/Skins/skin1/base.css" />
<link rel="stylesheet" href="~/UI/Skins/skin2/base.css" />
Using this system and Razor you can now switch out the Skin Path from a databa...
Get users by name property using Firebase
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In October 2014, Firebase rolled out new querying functionality via the orderByChild() method, that enables you to do this type of query quickly and efficiently. See the updated answer below.
When writing data to Firebase, you have a few different options which will reflect different use case...