大约有 9,000 项符合查询结果(耗时:0.0169秒) [XML]
Why is using 'eval' a bad practice?
I am using the following class to easily store data of my songs.
8 Answers
8
...
What exactly does += do in python?
I need to know what += does in python. It's that simple. I also would appreciate links to definitions of other short hand tools in python.
...
PostgreSQL Autoincrement
I'm switching from MySQL to PostgreSQL and was wondering how I can do autoincrement values. I saw in the PostgreSQL docs a datatype "serial", but I get syntax errors when using it (in v8.0).
...
Android studio using > 100% CPU at all times - no background processes appear to be running
I've noticed Android Studio (when running) uses greater than 100% CPU at all times, even when it appears there are no background processes that the IDE is running (indexing, etc). I might suspect this were something specific to my box, but some fellow developers are encountering this as well.
...
Unable to execute dex: method ID not in [0, 0xffff]: 65536
... have seen various versions of the dex erros before, but this one is new. clean/restart etc won't help. Library projects seems intact and dependency seems to be linked correctly.
...
How to move an iFrame in the DOM without losing its state?
Take a look at this simple HTML:
8 Answers
8
...
How can I get a web site's favicon?
Simple enough question: I've create a small app that is basically just a favourites that sits in my system tray so that I can open often-used sites/folders/files from the same place. Getting the default icons from my system for known file types isn't terribly complicated, but I don't know how to get...
Is an empty href valid?
One of our web developers uses the following html as a placeholder for styling a drop down list.
10 Answers
...
Does SQLAlchemy have an equivalent of Django's get_or_create?
I want to get an object from the database if it already exists (based on provided parameters) or create it if it does not.
...
How do you squash commits into one patch with git format-patch?
I've got eight commits on a branch that I'd like to email to some people who aren't git enlightened, yet. So far, everything I do either gives me 8 patch files, or starts giving me patch files for every commit in the branch's history, since the beginning of time. I used git rebase --interactive to...