大约有 24,971 项符合查询结果（耗时：0.0507秒） [XML]
How do I rename an open file in Emacs?
Is there a way to rename an open file in Emacs? While I'm viewing it? Something like save-as, but the original one should go away.
...
Using 'return' in a Ruby block
I'm trying to use Ruby 1.9.1 for an embedded scripting language, so that "end-user" code gets written in a Ruby block. One issue with this is that I'd like the users to be able to use the 'return' keyword in the blocks, so they don't need to worry about implicit return values. With this in mind, t...
Find column whose name contains a specific string
I have a dataframe with column names, and I want to find the one that contains a certain string, but does not exactly match it. I'm searching for 'spike' in column names like 'spike-2' , 'hey spike' , 'spiked-in' (the 'spike' part is always continuous).
...
Initializing IEnumerable In C#
I have this object :
8 Answers
8
...
How do I use arrays in C++?
C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, ...
MIN and MAX in C
Where are MIN and MAX defined in C, if at all?
14 Answers
14
...
How do I tokenize a string in C++?
Java has a convenient split method:
35 Answers
35
...
Reshaping data.frame from wide to long format
I have some trouble to convert my data.frame from a wide table to a long table.
At the moment it looks like this:
9 Answe...
How can I select an element with multiple classes in jQuery?
I want to select all the elements that have the two classes a and b .
13 Answers
13...
Django: multiple models in one template using forms [closed]
I'm building a support ticket tracking app and have a few models I'd like to create from one page. Tickets belong to a Customer via a ForeignKey. Notes belong to Tickets via a ForeignKey as well. I'd like to have the option of selecting a Customer (that's a whole separate project) OR creating a new ...