大约有 10,480 项符合查询结果（耗时：0.0402秒） [XML]
Setting an object to null vs Dispose()
...out unmanaged resources (non-memory resources). These could be UI handles, network connections, file handles etc. These are limited resources, so you generally want to release them as soon as you can. You should implement IDisposable whenever your type "owns" an unmanaged resource, either directly (...
Use of var keyword in C#
...te again, var is required in order to have certain other features work in .NET.
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edited May 6 '11 at 17:31
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What are the differences between Perl, Python, AWK and sed? [closed]
...programmer can learn gawk in two hours, it is the best choice. On this planet, simpler and faster is better!
Perl or Python are far better than any version of awk or sed when you have very complex input/output scenarios. The more complex the problem is, the better off you are using python, from a...
How can I view the source code for a function?
...ackage development is hosted publicly (e.g. via GitHub, R-Forge, or RForge.net), you can probably browse the source code online.
Compiled code in a base package
Certain packages are considered "base" packages. These packages ship with R and their version is locked to the version of R. Examples inc...
How to make shallow git submodules?
...ell? Take a look at the dates, that is what they're for. If you read some .NET blog from 2002 with code using ArrayList instead of List, would you use that? Would you demand that the author updated his post? Same principle applies here.
– Mauricio Scheffer
Jan ...
Watermark / hint text / placeholder TextBox
...y reasons. You could make it bindable using this example here: wpftutorial.net/PasswordBox.html however it is probably quicker and easier just to use the PasswordChanged event and code behind to set the visibility in this case.
– apc
Apr 3 '17 at 7:15
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How can I extract embedded fonts from a PDF as valid font files?
... The latest page can be found here: fontforgebuilds.sourceforge.net
– CTS_AE
Jan 28 '19 at 7:26
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Why em instead of px?
...uld, but Firefox does not honor the system DPI setting. See bugs.launchpad.net/ubuntu/+source/firefox/+bug/19524
– flodin
Mar 6 '09 at 8:02
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Exporting functions from a DLL with dllexport
...etProcAddress, or maybe importing from another language (i.e PInvoke from .NET, or FFI in Python/R etc) you can use extern "C" inline with your dllexport to tell the C++ compiler not to mangle the names. And since we are using GetProcAddress instead of dllimport we don't need to do the ifdef dance ...
What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]
...hich is spot on for a graph db, and run recommendation algorithms over the network.
If you are already working in Java, I think that modeling using Neo4j is very straight forward and it has the flattest / fastest performance for R/W of any other solutions we tried.
To be honest, I have a hard time...