大约有 40,000 项符合查询结果(耗时:0.0418秒) [XML]

https://stackoverflow.com/ques... 

Change string color with NSAttributedString?

... There is no need for using NSAttributedString. All you need is a simple label with the proper textColor. Plus this simple solution will work with all versions of iOS, not just iOS 6. But if you needlessly wish to use NSAttributedString, you can do something like this: ...
https://stackoverflow.com/ques... 

Determine function name from within that function (without using traceback)

... Combining @CamHart's approach with @Yuval's avoids "hidden" and potentially deprecated methods in @RoshOxymoron's answer as well as numerical indexing into the stack for @neuro/@AndreasJung's answer: print(inspect.currentframe().f_code.co_name) – hobs Mar 1...
https://stackoverflow.com/ques... 

Local variables in nested functions

...ints to the local variable cage in the get_petters function. When you actually call the function, that closure is then used to look at the value of cage in the surrounding scope at the time you call the function. Here lies the problem. By the time you call your functions, the get_petters function i...
https://stackoverflow.com/ques... 

Python argparse mutual exclusive group

... add_mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options within the group mutually exclusive. What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have: p...
https://stackoverflow.com/ques... 

Django rest framework nested self-referential objects

... the `subcategories` field return CategorySerializer() Actually, as you've noted the above isn't quite right. This is a bit of a hack, but you might try adding the field in after the serializer is already declared. class CategorySerializer(serializers.ModelSerializer): parentCat...
https://stackoverflow.com/ques... 

Why is C so fast, and why aren't other languages as fast or faster? [closed]

...eaving the former assertion for another post, what is special about C that allows it to be faster than other languages? Or put another way: what's to stop other languages from being able to compile down to binary that runs every bit as fast as C? ...
https://stackoverflow.com/ques... 

Call Go functions from C

... You can call Go code from C. it is a confusing proposition though. The process is outlined in the blog post you linked to. But I can see how that isn't very helpful. Here is a short snippet without any unnecessary bits. It should ma...
https://stackoverflow.com/ques... 

How do you manage databases in development, test, and production?

...of good options. I wouldn't use the "restore a backup" strategy. Script all your schema changes, and have your CI server run those scripts on the database. Have a version table to keep track of the current database version, and only execute the scripts if they are for a newer version. Use a migr...
https://stackoverflow.com/ques... 

C# Sortable collection which allows duplicate keys

... Use this Comparer e.g. with SortedLists or SortedDictionaries, that don't allow duplicate keys /// </summary> /// <typeparam name="TKey"></typeparam> public class DuplicateKeyComparer<TKey> : IComparer<TKey> where TKey : IComparable { #...
https://stackoverflow.com/ques... 

How to read/process command line arguments?

I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments. 17 Answers ...