大约有 41,000 项符合查询结果（耗时：0.0447秒） [XML]
What's the hardest or most misunderstood aspect of LINQ? [closed]
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Agreed. I'm a veteran and I just realized this implicit casting was taking place as I started writing my own QueryProvider
– TheSoftwareJedi
May 31 '09 at 16:31
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What is the reason behind cbegin/cend?
...that SomeFunctor cannot modify the elements of the vector (without a const-cast, of course). We explicitly get const_iterators, and therefore SomeFunctor::operator() will be called with const int &. If it takes it's parameters as int &, C++ will issue a compiler error.
C++17 has a more el...
How to shut down the computer from C#
...around numeric constants, optionally supports flags / bitmasks, and easily casts back and forth to the underlying numeric type.
– Andrew Rondeau
Aug 24 '17 at 17:14
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How to fetch the row count for all tables in a SQL SERVER database [duplicate]
...ort and sweet
sp_MSForEachTable 'DECLARE @t AS VARCHAR(MAX);
SELECT @t = CAST(COUNT(1) as VARCHAR(MAX))
+ CHAR(9) + CHAR(9) + ''?'' FROM ? ; PRINT @t'
Output:
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Generating random strings with T-SQL
...nt = 2048
set @BinaryData=crypt_gen_random (@Length)
set @CharacterData=cast('' as xml).value('xs:base64Binary(sql:variable("@BinaryData"))', 'varchar(max)')
print @CharacterData
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improv...
dispatch_after - GCD in Swift?
...e was slightly wrong. Implicit typing causes a compile error if you don't cast NSEC_PER_SEC to a Double.
If anyone can suggest a more optimal solution I'd be keen to hear it.
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JavaScript OR (||) variable assignment explanation
...t then when I wanted to use it is that the result of the expression is not cast to boolean. You cannot later do if( true == f ). If an integer was stored in f, then this test will always return false.
– user1115652
Aug 1 '13 at 2:11
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Java optional parameters
...You are type-checking for an Integer although your a variable is a String (cast is correct).
– Unknown Id
Feb 10 '16 at 10:59
5
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Pick a random element from an array
...t(arc4random_uniform(UInt32(array.count)))
print(array[randomIndex])
The castings are ugly, but I believe they're required unless someone else has another way.
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How to check for an undefined or null variable in JavaScript?
...s the truthiness. Which FYI is also equivalent to if (var) which will be cast to boolean, so basically completely useless...
– Cyril CHAPON
Jun 26 '18 at 9:42
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