大约有 45,000 项符合查询结果（耗时：0.0515秒） [XML]
Add Foreign Key to existing table
...follow
|
edited Jul 18 '15 at 22:38
Steen Schütt
6371010 silver badges2727 bronze badges
...
Create or write/append in text file
I have a website that every time a user logs in or logs out I save it to a text file.
7 Answers
...
Javascript - How to detect if document has loaded (IE 7/Firefox 3)
...ment loads, but the document may or may not have finished loading yet. If it did load, then I can just call the function. If it did NOT load, then I can attach an event listener. I can't add an eventlistener after onload has already fired since it won't get called. So how can I check if the docume...
Why should eval be avoided in Bash, and what should I use instead?
...
There's more to this problem than meets the eye. We'll start with the obvious: eval has the potential to execute "dirty" data. Dirty data is any data that has not been rewritten as safe-for-use-in-situation-XYZ; in our case, it's any string that has not been formatted so as to be safe ...
Will the Garbage Collector call IDisposable.Dispose for me?
The .NET IDisposable Pattern implies that if you write a finalizer, and implement IDisposable, that your finalizer needs to explicitly call Dispose.
This is logical, and is what I've always done in the rare situations where a finalizer is warranted.
...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
... How am I supposed to query the DB if I'm not able to even connect to it??
– isabelle martz
May 12 '16 at 13:52
2
...
JavaScript is in array
...follow
|
edited Mar 13 '12 at 3:44
adeneo
285k2323 gold badges345345 silver badges352352 bronze badges
...
ViewPager and fragments — what's the right way to store fragment's state?
...m to be very nice for separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!
...
Should all Python classes extend object?
...
In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
...
>>> type(Foo())
<type 'instance'>
vs.
>>> cl...
What's the easiest way to escape HTML in Python?
cgi.escape seems like one possible choice. Does it work well? Is there something that is considered better?
9 Answers
...