大约有 40,000 项符合查询结果(耗时:0.0372秒) [XML]

https://stackoverflow.com/ques... 

Why can't strings be mutable in Java and .NET?

Why is it that they decided to make String immutable in Java and .NET (and some other languages)? Why didn't they make it mutable? ...
https://stackoverflow.com/ques... 

How to convert ASCII code (0-255) to its corresponding character?

... Character.toString ((char) i); share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How do I replace a character at a particular index in JavaScript?

I have a string, let's say Hello world and I need to replace the char at index 3. How can I replace a char by specifying a index? ...
https://stackoverflow.com/ques... 

How does database indexing work? [closed]

...iven that creating an index requires additional disk space (277,778 blocks extra from the above example, a ~28% increase), and that too many indices can cause issues arising from the file systems size limits, careful thought must be used to select the correct fields to index. Since indices are only...
https://stackoverflow.com/ques... 

iterating over each character of a String in ruby 1.8.6 (each_char)

...y and currently trying to operate on each character separately from a base String in ruby. I am using ruby 1.8.6 and would like to do something like: ...
https://stackoverflow.com/ques... 

How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?

...f hash table and trie have the same complexity on query, O(k) for k length string why should we go for hash? could you please explain? – Sazzad Hissain Khan Feb 12 '18 at 4:00 ...
https://stackoverflow.com/ques... 

What's the u prefix in a Python string?

... You're right, see 3.1.3. Unicode Strings. It's been the syntax since Python 2.0. Python 3 made them redundant, as the default string type is Unicode. Versions 3.0 through 3.2 removed them, but they were re-added in 3.3+ for compatibility with Python 2 to ...
https://stackoverflow.com/ques... 

Why does HTML think “chucknorris” is a color?

How come certain random strings produce colors when entered as background colors in HTML? For example: 9 Answers ...
https://stackoverflow.com/ques... 

(How) can I count the items in an enum?

... There's not really a good way to do this, usually you see an extra item in the enum, i.e. enum foobar {foo, bar, baz, quz, FOOBAR_NR_ITEMS}; So then you can do: int fuz[FOOBAR_NR_ITEMS]; Still not very nice though. But of course you do realize that just the number of items in an...
https://stackoverflow.com/ques... 

vs vs for inline and block code snippets

...dd the class. Doing it any other way will still be asking the user to type extra. This way the user can think of it as adding a special tag rather than using a completely different structure. – slebetman Jan 9 '11 at 0:19 ...