大约有 31,500 项符合查询结果(耗时:0.0345秒) [XML]

https://stackoverflow.com/ques... 

BeautifulSoup getting href [duplicate]

... You can use find_all in the following way to find every a element that has an href attribute, and print each one: from BeautifulSoup import BeautifulSoup html = '''<a href="some_url">next</a> <span class="class"><a href...
https://stackoverflow.com/ques... 

How can I trim all strings in an Array? [duplicate]

... @ime: that's what it expected to return actually. Garbage-in garbage-out paradigm in action. – zerkms Jun 17 '14 at 10:50 4 ...
https://stackoverflow.com/ques... 

How to create user for a db in postgresql? [closed]

I have installed PostgreSQL 8.4 on my CentOS server and connected to root user from shell and accessing the PostgreSQL shell. ...
https://stackoverflow.com/ques... 

How to check postgres user and password? [closed]

... you may create a new user or set a new password to the existing user. Usually, you can login as the postgres user: Open a Terminal and do sudo su postgres. Now, after entering your admin password, you are able to launch psql and do CREATE USER yourname WITH SUPERUSER PASSWORD 'yourpassword'; T...
https://stackoverflow.com/ques... 

MongoDB Many-to-Many Association

... user document: {name:"Joe" ,roles:["Admin","User","Engineer"] } To get all the Engineers, use: db.things.find( { roles : "Engineer" } ); If you want to maintain the roles in separate documents then you can include the document's _id in the roles array instead of the name: {name:"Joe" ,roles:...
https://stackoverflow.com/ques... 

Why is require_once so bad to use?

...system keeps a log of what's already been included/required. Every *_once call means checking that log. So there's definitely some extra work being done there but enough to detriment the speed of the whole app? ... I really doubt it... Not unless you're on really old hardware or doing it a lot. I...
https://stackoverflow.com/ques... 

What does multicore assembly language look like?

...on, but it's an answer to a question that appears in the comments. Essentially, the question is what support the hardware gives to multi-threaded operation. Nicholas Flynt had it right, at least regarding x86. In a multi threaded environment (Hyper-threading, multi-core or multi-processor), the B...
https://stackoverflow.com/ques... 

DateTime2 vs DateTime in SQL Server

...e seconds precision. datetimeoffset provides time zone support for globally deployed applications. datetime2 has larger date range, a larger default fractional precision, and optional user-specified precision. Also depending on the user-specified precision it may use less storage. ...
https://stackoverflow.com/ques... 

When to use setAttribute vs .attribute= in JavaScript?

... This answer is not clear enough...I don't really feel I understand this yet. – temporary_user_name Oct 24 '13 at 21:48 1 ...
https://stackoverflow.com/ques... 

SQL: deleting tables with prefix

How to delete my tables who all have the prefix myprefix_ ? 10 Answers 10 ...