大约有 23,000 项符合查询结果（耗时：0.0570秒） [XML]
How to find the length of a string in R
...
As of 3.3.1 the base defaults are set to give nchar(NA) ## [1] NA : see nchar RDocumentation
– leerssej
Oct 11 '16 at 1:15
...
BasicHttpBinding vs WsHttpBinding vs WebHttpBinding
In WCF there are several different types of HTTP based bindings:
1 Answer
1
...
Do you debug C++ code in Vim? How? [closed]
...
Just to add a vim "like" debugger based off GDB - cgdb.github.io
– Jimmy MG Lim
Apr 3 '19 at 8:00
...
Differences between ExpandoObject, DynamicObject and dynamic
...y doesn't ExpandoObject derive from DynamicObject, which looks the defacto base type for ruby's 'method_missing' based programming.
– Gishu
Jun 14 '12 at 6:26
4
...
How to assign from a function which returns more than one value?
... with @merlin2011; as written it seems like this syntax is embedded into R base.
– knowah
Jun 3 '14 at 22:52
6
...
git difftool, open all diff files immediately, not in serial
...me question was asked on the git mail list.
I put together a shell script based on that email thread which performs a directory diff between arbitrary commits.
Starting with git v1.7.10, the git-diffall script is included in the contrib of the standard git installation.
For versions before v1.7.1...
What is the difference between memoization and dynamic programming?
...elated sub-problems first, typically by filling up an n-dimensional table. Based on the results in the table, the solution to the "top" / original problem is then computed.
If you use memoization to solve the problem you do it by maintaining a map of already solved sub problems. You do it "top down...
How do you track record relations in NoSQL?
...ut the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal web pages.
...
What is the difference between RDF and OWL? [closed]
...asFather> <http://example.com/person/charles> .
Triples are database normalization taken to a logical extreme. They have the advantage that you can load triples from many sources into one database with no reconfiguration.
RDF and RDFS
The next layer is RDF - The Resource Description Fra...
How do I tokenize a string in C++?
...
C++ standard library algorithms are pretty universally based around iterators rather than concrete containers. Unfortunately this makes it hard to provide a Java-like split function in the C++ standard library, even though nobody argues that this would be convenient. But what wou...