大约有 32,293 项符合查询结果(耗时:0.0560秒) [XML]

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AES Encryption for an NSString on the iPhone

...So, I got it to work on a Cocoa application on El Capitan with XCode7. Now what I'm trying to do is figure out how to Base64Encode/Base64Decode this data so that it's transmittable without being disturbed in transit, rather than return raw data. – Volomike Jan ...
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Checking for a dirty index or untracked files with Git

...when I figured out how to add git status information to my prompt. Here's what I do: For dirty status: # Returns "*" if the current git branch is dirty. function evil_git_dirty { [[ $(git diff --shortstat 2> /dev/null | tail -n1) != "" ]] && echo "*" } For untracked files (Notice t...
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Are Java static initializers thread safe?

...ze on the class in the static code block, but my guess is this is actually what happens anyway? 6 Answers ...
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Can I restore a single table from a full mysql mysqldump file?

...e/p' mysql.dump > mytable.dump This will copy in the file mytable.dump what is located between CREATE TABLE mytable and the next CREATE TABLE corresponding to the next table. You can then adjust the file mytable.dump which contains the structure of the table mytable, and the data (a list of INSE...
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doesn't inherit the font from

... Wrong or not, what Firebug was showing me was very confusing: font size 12, but computed it still became 13.3333. After setting font-size to inherit analogous to Gaby's answer my problem was solved :O – Jeroen ...
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How to concatenate strings of a string field in a PostgreSQL 'group by' query?

... have the string_agg(expression, delimiter) function which will do exactly what the question asked for, even letting you specify the delimiter string: SELECT company_id, string_agg(employee, ', ') FROM mytable GROUP BY company_id; Postgres 9.0 also added the ability to specify an ORDER BY clause ...
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CSS: How to position two elements on top of each other, without specifying a height?

...her boxes. This means that absolutely positioned elements have no effect whatsoever on their parent element's size and your first <div class="container_row"> will have a height of zero. So you can't do what you're trying to do with absolutely positioned elements unless you know how tall the...
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Single Line Nested For Loops

... comes at the beginning rather than at the end. On to your questions: What type must object be in order to use this for loop structure? An iterable. Any object that can generate a (finite) set of elements. These include any container, lists, sets, generators, etc. What is the order in whi...
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How to for each the hashmap? [duplicate]

... I know I'm a bit late for that one, but I'll share what I did too, in case it helps someone else : HashMap<String, HashMap> selects = new HashMap<String, HashMap>(); for(Map.Entry<String, HashMap> entry : selects.entrySet()) { String key = entry.getKey...
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In Node.js, how do I “include” functions from my other files?

... You can require any js file, you just need to declare what you want to expose. // tools.js // ======== module.exports = { foo: function () { // whatever }, bar: function () { // whatever } }; var zemba = function () { } And in your app file: // app.js // ===...