大约有 19,031 项符合查询结果（耗时：0.0271秒） [XML]
Efficiently test if a port is open on Linux?
...ise I found out recently is that Bash natively supports tcp connections as file descriptors. To use:
exec 6<>/dev/tcp/ip.addr.of.server/445
echo -e "GET / HTTP/1.0\n" >&6
cat <&6
I'm using 6 as the file descriptor because 0,1,2 are stdin, stdout, and stderr. 5 is sometimes use...
Do I need to create indexes on foreign keys on Oracle?
... foreign key constraint creates also an index... i.e. Jet Engine (MSAccess files, Firebird and MySQL)
– bubi
Apr 23 '15 at 15:19
17
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How to programmatically create and read WEP/EAP WiFi configurations in Android?
...tion using Reflection Api. As a bonus the snippet will log the config to a file and save it on the SD Card....pretty slick ..eh ;) A little bit of overview of Reflection Api and I am sure grasping the code below is easy.
private static final String INT_PRIVATE_KEY = "private_key";
private s...
How to convert enum value to int?
...s. If you're going to modify the enum's constants you'd have to be in that file already. Most enums are fairly short, and if it's not you should be checking the file more thoroughly anyway. In both cases you should probably have a unit test covering your next() method anyway.
–...
MySQL select 10 random rows from 600K rows fast
...ook back in 2010, they asked me how to select a random record from a huge file of unknown size, in one reading. Once you come up with an idea, it is easy to generalize it for selecting multiple records. So yes, sorting the entire file is ridiculous. At the same time, it is very handy. I just used ...
Can you determine if Chrome is in incognito mode via a script?
...
* Edit; the following no longer works in Chrome: *
Yes. The FileSystem API is disabled in incognito mode. Check out https://jsfiddle.net/w49x9f1a/ when you are and aren't in incognito mode.
Sample code:
var fs = window.RequestFileSystem || window.webkitRequestFileSystem;
i...
How to add a local repo and treat it as a remote repo
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It's important to put file:// on the front of the path and to use the full path to the local repository so that client software can access it through the expected protocol. And in answer to Erik's question above, the .git on the end of the path is...
Add floating point value to android resources/values
...lso use it for the guideline of the constraint layout.
Create integer.xml file and add into
<item name="guideline_button_top" type="integer" format="float">0.60</item>
Use from a layout.xml file
app:layout_constraintGuide_percent="@integer/guideline_button_top"
...
Evaluate expression given as a string
...elow, "You need to specify that the input is text, because parse expects a file by default"
– PatrickT
Jan 15 '14 at 8:39
1
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How do I run NUnit in debug mode from Visual Studio?
...Jon, without the /assembly flag, i.e.
Start External Program: C:\Program Files\NUnit 2.4.8\bin\nunit.exe
Command line arguments: "<path>\bin\Debug\Quotes.Domain.Tests.dll"
Does TestDSP.dll contain all your TestFixtures?
As my test project is not the startup project in the solution, I run...