大约有 45,000 项符合查询结果（耗时：0.0417秒） [XML]
What's the difference between dynamic (C# 4) and var?
...X) s = GetSpecialX(); Calling string test = s.Y; would generate a compiler error because the compiler knows about Y but string test2 = s.Z would compile fine and be checked at run-time. I could think of much value of such half-dynamic classes!
– mmmmmmmm
Jun 7 ...
Java using enum with switch statement
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break;
}
}
You may find it more helpful / less error prone to write a custom valueOf implementation that takes your integer values as an argument to resolve the appropriate enum value and lets you centralize your bounds checking.
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How to detect first time app launch on an iPhone
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I get an error because the method isn't returning a boolean value. If I use return 0; to kill the error it fails.
– mrEmpty
Nov 22 '13 at 17:17
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Nested classes' scope?
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NameError: name 'OuterClass' is not defined - -1
– Mr_and_Mrs_D
Apr 24 '15 at 18:28
3
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Why do some scripts omit the closing PHP tag, '?>'? [duplicate]
...y char which is accidentally added behind the closing tag would trigger an error when trying to modify header info later.
Removing the closing tag is kind of "good practice" referring to many coding guidelines.
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue
I am getting the following error:
6 Answers
6
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Large-scale design in Haskell? [closed]
...make some classes of testing needless, as they rule out e.g. out of bounds errors statically.
The profiler
Provide objective evidence of your program's heap and time profiles.
Heap profiling, in particular, is the best way to ensure no unnecessary memory use.
Purity
Reduce complexity dramati...
Add Foreign Key to existing table
... Do not just run "SET FOREIGN_KEY_CHECKS=0;" if you get the error "a foreign key constraint fails", you obviously have bad data that you must fix or else you will get bigger problems down the line.
– MazeChaZer
Jun 11 '18 at 12:05
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How do I create a MongoDB dump of my database?
...ed to: prod.example.com
all dbs
DATABASE: log to dump/log
log.errors to dump/log/errors.bson
713 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
blog.posts to dump/log/blog.posts.bson
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Get JSON object from URL
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The error came on this line echo $obj['access_token']; Fatal error: Cannot use object of type stdClass as array in F:\wamp\www\sandbox\linkedin\test.php on line 22
– user2199343
Mar 25 '13 ...