大约有 35,460 项符合查询结果（耗时：0.0473秒） [XML]
How to check if any flags of a flag combination are set?
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150
If you want to know if letter has any of the letters in AB you must use the AND & operator. ...
How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...note the asterisk, and that a2 is the receiver
or splice:
a1[a1.length, 0] = a2
a1[a1.length..0] = a2
a1.insert(a1.length, *a2)
or append and flatten:
(a1 << a2).flatten! # a call to #flatten instead would return a new array
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How do I add 24 hours to a unix timestamp in php?
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303
You probably want to add one day rather than 24 hours. Not all days have 24 hours due to (among...
Opening port 80 EC2 Amazon web services [closed]
I've opened port 80 in the web console on my E2C instance's security group but I still can't access it via the public dns in the browser.
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What is the documents directory (NSDocumentDirectory)?
...ectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0]
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How to copy part of an array to another array in C#?
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int[] b = new int[3];
Array.Copy(a, 1, b, 0, 3);
a = source array
1 = start index in source array
b = destination array
0 = start index in destination array
3 = elements to copy
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How to alias 'git checkout' to 'git co'
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answered Jan 23 '13 at 20:49
joseph.hainlinejoseph.hainline
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Is there a faster/shorter way to initialize variables in a Rust struct?
...uct by giving only the non-default values:
let p = cParams { iInsertMax: 10, ..Default::default() };
With some minor changes to your data structure, you can take advantage of an automatically derived default implementation. If you use #[derive(Default)] on a data structure, the compiler will auto...
Remove the first character of a string
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edited Jul 8 '18 at 19:00
Bjamse
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answered Feb 9 '11 at 13:34
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Python/postgres/psycopg2: getting ID of row just inserted
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208
cursor.execute("INSERT INTO .... RETURNING id")
id_of_new_row = cursor.fetchone()[0]
And plea...