大约有 11,418 项符合查询结果（耗时：0.0291秒） [XML]
QLabel: set color of text and background
...ckground color
QPalette sample_palette;
sample_palette.setColor(QPalette::Window, Qt::white);
sample_palette.setColor(QPalette::WindowText, Qt::blue);
sample_label->setAutoFillBackground(true);
sample_label->setPalette(sample_palette);
sample_label->setText("What ever text");
It works f...
Setting the default Java character encoding
... I was scratching my head cause that command was not working on Windows, linux and mac perfectly... then i put " around the value like this: java -D"file.encoding=UTF-8" -jar
– cabaji99
Sep 22 '17 at 15:35
...
How can I check file size in Python?
I am writing a Python script in Windows. I want to do something based on the file size. For example, if the size is greater than 0, I will send an email to somebody, otherwise continue to other things.
...
How to exit in Node.js
...
If you're in a Unix terminal or Windows command line and want to exit the Node REPL, either...
Press Ctrl + C twice, or
type .exit and press Enter, or
press Ctrl + D at the start of a line (Unix only)
...
Rename package in Android Studio
... project and secondly appdebug was using old package name( visible in run window of studio) added applicationId "com.packagename" in app build.gradle defaultconfig ..
– baboo
Sep 11 '14 at 10:39
...
Remove sensitive files and their commits from Git history
... how to fix it. GitHub answered exactly that question as an FAQ:
Note for Windows users: use double quotes (") instead of singles in this command
git filter-branch --index-filter \
'git update-index --remove PATH-TO-YOUR-FILE-WITH-SENSITIVE-DATA' <introduction-revision-sha1>..HEAD
git push ...
iOS JavaScript bridge
...
This is unfortunately slightly more complex, because there isn't the same windowScriptObject property (and class) that exists on Mac OSX allowing complete communication between the two.
However, you can easily call from javascript custom-made URLs, like:
window.location = yourscheme://callfunctio...
How do I show/hide a UIBarButtonItem?
...ide/show one of the buttons depending on the state of the data in the main window.
37 Answers
...
See line breaks and carriage returns in editor
...use I mostly work in Unix environment. But I would like to be warned about Windows type line endings if there is any in the file. Will vi -b filename or :set binary just show ^M if it is a windows type file and no other line endings otherwise?
– alpha_989
May 2...
Completely uninstall PostgreSQL 9.0.4 from Mac OSX Lion?
...ve the EnterpriseDB One-Click install of PostgreSQL 9.1:
Open a terminal window. Terminal is found in: Applications->Utilities->Terminal
Run the uninstaller:
sudo /Library/PostgreSQL/9.1/uninstall-postgresql.app/Contents/MacOS/installbuilder.sh
If you installed with the Postgres Installer...