大约有 47,000 项符合查询结果(耗时:0.0828秒) [XML]

https://stackoverflow.com/ques... 

How to flatten only some dimensions of a numpy array

Is there a quick way to "sub-flatten" or flatten only some of the first dimensions in a numpy array? 4 Answers ...
https://stackoverflow.com/ques... 

How do you append to an already existing string?

I want append to a string so that every time I loop over it will add say "test" to the string. 7 Answers ...
https://stackoverflow.com/ques... 

Convert all first letter to upper case, rest lower for each word

I have a string of text (about 5-6 words mostly) that I need to convert. 11 Answers 11...
https://stackoverflow.com/ques... 

Detect blocked popup in Chrome

I am aware of javascript techniques to detect whether a popup is blocked in other browsers (as described in the answer to this question ). Here's the basic test: ...
https://stackoverflow.com/ques... 

string sanitizer for filename

I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one? ...
https://stackoverflow.com/ques... 

MySQL: Invalid use of group function

I am using MySQL. Here is my schema: 2 Answers 2 ...
https://stackoverflow.com/ques... 

Which timestamp type should I choose in a PostgreSQL database?

I would like to define a best practice for storing timestamps in my Postgres database in the context of a multi-timezone project. ...
https://stackoverflow.com/ques... 

What Regex would capture everything from ' mark to the end of a line?

I have a text file that denotes remarks with a single ' . 7 Answers 7 ...
https://stackoverflow.com/ques... 

Why do you need to create a cursor when querying a sqlite database?

I'm completely new to Python's sqlite3 module (and SQL in general for that matter), and this just completely stumps me. The abundant lack of descriptions of cursor objects (rather, their necessity) also seems odd. ...
https://stackoverflow.com/ques... 

In Jinja2, how do you test if a variable is undefined?

Converting from Django, I'm used to doing something like this: 6 Answers 6 ...