大约有 40,000 项符合查询结果（耗时：0.0505秒） [XML]
How does this print “hello world”?
...case) english letters and 6 symbols (being space among them).
Algorithm description
The >>= 5 in the for-loop jumps from group to group, then the 5-bits group gets isolated ANDing the number with the mask 31₁₀ = 11111₂ in the sentence l & 31
Now the code maps the 5-bit value to it...
Unable to execute dex: method ID not in [0, 0xffff]: 65536
...
Update 3 (11/3/2014)
Google finally released official description.
Update 2 (10/31/2014)
Gradle plugin v0.14.0 for Android adds support for multi-dex. To enable, you just have to declare it in build.gradle:
android {
defaultConfig {
...
multiDexEnabled true
...
How to check if a file is empty in Bash?
....txt
else
rm -f full.txt
touch empty.txt
fi
I like shell scripting a lot, but one disadvantage of it is that the shell cannot help you when you misspell, whereas a compiler like your C++ compiler can help you.
Notice incidentally that I have swapped the roles of empty.txt and full...
Watermark / hint text / placeholder TextBox
...
// for ItemsSource property
DependencyPropertyDescriptor prop = DependencyPropertyDescriptor.FromProperty(ItemsControl.ItemsSourceProperty, i.GetType());
prop.AddValueChanged(i, ItemsSourceChanged);
}
}
#region Event Handlers
/// <summa...
How to find a hash key containing a matching value
...nts hash, is there a quick ruby way (without having to write a multi-line script) to obtain the key given I want to match the client_id? E.g. How to get the key for client_id == "2180" ?
...
How to get notified about changes of the history via history.pushState?
...vilege to your extension and using the background page (not just a content script), but it does work.
The event you want is browser.webNavigation.onHistoryStateUpdated, which is fired when a page uses the history API to change the URL. It only fires for sites that you have permission to access, and...
Python subprocess/Popen with a modified environment
...eir environment variable. I have outlined an explanation of running python scripts with cronjobs that deals with the modified environment in a different way (found here). Thought it would be of some good for those who, like me, needed just a bit more than this answer provided.
...
Correct file permissions for WordPress [closed]
...e if someone manage to use the web server (or a security hole in some .php script) to put some files in your website.
To protect your site against such an attack you should to the following:
All files should be owned by your user account, and should be writable
by you. Any file that needs wri...
Prevent form submission on Enter key press
...one radio button . When the enter key is pressed, I want to call my JavaScript function, but when I press it, the form is submitted.
...
How to uninstall a Windows Service when there is no executable for it left on the system?
... the entry of the service I wanted deleted remains in Service, while the Description of it shows: "<Failed to Read Description. Error Code: 2>"
– GJ.
Aug 22 '16 at 2:53
...