大约有 40,000 项符合查询结果(耗时:0.0392秒) [XML]

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How to determine the encoding of text?

... Correctly detecting the encoding all times is impossible. (From chardet FAQ:) However, some encodings are optimized for specific languages, and languages are not random. Some character sequences pop up all the time, while other sequences make no...
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Effects of changing Django's SECRET_KEY

...t know about 1.4, it's a matter of taking a look at the code. I pointed at all the sources for each point, you can take a look at "protect session data and create random session keys". It's normal you're still logged in but you won't be able to read the data contained in the session as SECRET_KEY is...
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Rake just one migration

...n a single migration that changed and needed to be re-run independently of all other migrations. Fire up the console and do this: >> require 'db/migrate/your_migrations.rb' => ["YourMigrations"] >> YourMigrations.up => etc... as the migration runs >> YourMigration.down Mor...
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Mismatched anonymous define() module

I'm getting this error when I browse my webapp for the first time (usually in a browser with disabled cache). 7 Answers ...
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Why does C# forbid generic attribute types?

...pful information either, although it does provide an example of what's not allowed. My copy of the annotated C# 3 spec should arrive tomorrow... I'll see if that gives any more information. Anyway, it's definitely a language decision rather than a runtime one. EDIT: Answer from Eric Lippert (parap...
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querySelector search immediate children

...port): see full support list. function(elem) { return elem.querySelectorAll(':scope > someselector'); }; share | improve this answer | follow | ...
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You can't specify target table for update in FROM clause

... absolutely fine. DELETE FROM t WHERE tableID NOT IN (SELECT viewID FROM t_view); Also I recommend running OPTIMIZE TABLE t; afterwards to reduce the size of the table. – CodeX Oct 13 '16 at 11:36 ...
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How does Task become an int?

...t; (for a logical result of type T in an async manner) The compiler does all the appropriate wrapping. The point is that you're asynchronously returning urlContents.Length - you can't make the method just return int, as the actual method will return when it hits the first await expression which ha...
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Default value of a type at Runtime [duplicate]

... There's really only two possibilities: null for reference types and new myType() for value types (which corresponds to 0 for int, float, etc) So you really only need to account for two cases: object GetDefaultValue(Type t) { if (t...
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Remove multiple whitespaces

I'm getting $row['message'] from a MySQL database and I need to remove all whitespace like \n \t and so on. 15 Answer...