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Change drawable color programmatically
I'm trying to change the color on a white marker image by code. I have read that the code below should change the color, but my marker remains white.
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...sets:
warehouses/wh1..wh6/: capacity;
vendors/v1..v8/: demand;
links(warehouses,vendors): cost, volume;
endsets
!目标函数;
min=@sum(links: cost*volume);
!需求约束;
@for(vendors(J):
@sum(warehouses(I): volume(I,J))=demand(J));
!产量约束;
@for(warehouses(I):
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How can one change the timestamp of an old commit in Git?
..._DATE and GIT_COMMITTER_DATE for the specific hash of the commit you're looking to fix.
This will invalidate that and all future hashes.
Example:
If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0, you could do so with something like this:
git filter-branch --en...
How do I drop a function if it already exists?
I know this must be simple, but how do I preface the creation of a function with a check to see if it already exists? If it exists, I want to drop and re-create it.
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Is there a shortcut to move between header and source file in VC++?
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In Visual Studio 2013 and later there is a default keyboard shortcut for this: Ctrl+K, Ctrl+O
(You will need to hold down Ctrl and type ko and then release Ctrl)
In earlier versions, see:
Visual Studio Macro to switch between CPP and H files
or
Open Corresponding File in ...
How to get GET (query string) variables in Express.js on Node.js?
Can we get the variables in the query string in Node.js just like we get them in $_GET in PHP?
26 Answers
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Access Control Request Headers, is added to header in AJAX request with jQuery
I would like to add a custom header to an AJAX POST request from jQuery.
6 Answers
6
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How to split text without spaces into list of words?
...s to assume all words are independently distributed. Then you only need to know the relative frequency of all words. It is reasonable to assume that they follow Zipf's law, that is the word with rank n in the list of words has probability roughly 1/(n log N) where N is the number of words in the dic...
NameValueCollection vs Dictionary [duplicate]
... aren't semantically identical. The NameValueCollection can have duplicate keys while the Dictionary cannot.
Personally if you don't have duplicate keys, then I would stick with the Dictionary. It's more modern, uses IEnumerable<> which makes it easy to mingle with Linq queries. You can even...
How do I auto-submit an upload form when a file is selected?
I have a simple file upload form. How do I make it submit automatically when a file has been selected? I don't want the user to have to click the Submit button.
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