大约有 3,270 项符合查询结果(耗时:0.0336秒) [XML]

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Reference — What does this symbol mean in PHP?

...apples, and then you want to subtract one from it. You can also increment letters in PHP: $i = "a"; while ($i < "c") { echo $i++; } Once z is reached aa is next, and so on. Note that character variables can be incremented but not decremented and even so only plain ASCII characters (a-...
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Regex lookahead for 'not followed by' in grep

...o grep for all instances of Ui\. not followed by Line or even just the letter L 5 Answers ...
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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?

...pip: sudo easy_install pip Install brew: ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)" Install mysql: brew install mysql Install MySQLdb sudo pip install MySQL-python If you have compilation problems, try editing the ~/.profile file like in one of the answer...
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Unable to find valid certification path to requested target - error even after cert imported

...with: plaintext hex dump of record plaintext packet print raw SSL/TLS packets Source: # See http://download.oracle.com/javase/1.5.0/docs/guide/security/jsse/JSSERefGuide.html#Debug share | ...
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Depend on a branch or tag using a git URL in a package.json?

...talled in node_modules or package_lock.json. If I changed the token or any letter in the repo name or user name, etc. - I'd get an error. So I knew I had the right token and repo name. I finally realized it's because the name of the dependency I had in my package.json didn't match the name in the p...
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How do you make a web application in Clojure? [closed]

...straight away Note : a benchmark of Clojure web servers is available, if raw performance is all that matters. share | improve this answer | follow | ...
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How many bytes does one Unicode character take?

...ce 1F6AA with the codepoint in hex) to see an image. U+0061 LATIN SMALL LETTER A: a Nº: 97 UTF-8: 61 UTF-16: 00 61 U+00A9 COPYRIGHT SIGN: © Nº: 169 UTF-8: C2 A9 UTF-16: 00 A9 U+00AE REGISTERED SIGN: ® Nº: 174 UTF-8: C2 AE UTF-16: 00 AE U+1337 ETHIOPIC SYLLABLE PHWA: ጷ Nº: 4919 ...
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What are the differences between vector and list data types in R?

...s of different types, even other lists: x <- list(values=sin(1:3), ids=letters[1:3], sub=list(foo=42,bar=13)) x # print the list x$values # Get one element x[["ids"]] # Another way to get an element x$sub$foo # Get sub elements x[[c(3,2)]] # Another way (gets 13) str(x) # A "summary" of ...
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Using arrays or std::vectors in C++, what's the performance gap?

... a std::array. Uninitialized memory Sometimes, using a vector instead of a raw buffer incurs a visible cost because the vector will initialize the buffer at construction, while the code it replaces didn't, as remarked bernie by in his answer. If this is the case, then you can handle it by using a un...
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Creating a textarea with auto-resize

...ame and parameter name were updated to be true names instead of individual letters. – Chris Marisic Oct 3 '14 at 15:34 5 ...