大约有 45,000 项符合查询结果(耗时:0.0458秒) [XML]
How to navigate through the source code by parts in CamelCase (instead of whole words)?
...g and disabling the setting called "Honor "CamelHumps" words settings when selecting on double click".
– Paul Lammertsma
Jan 22 '15 at 13:14
9
...
What is the difference between a field and a property?
... by the class creator. If a property is string, my contract is: assign any chars up to ~2bil length. If a property is DateTime, my contract is: assign any numbers within the limits of DateTime, which I can look up. If the creator adds constraints to the setters, those constraints are not communicate...
Why is there “data” and “newtype” in Haskell? [duplicate]
...rcher | Accountant
data Race = Human | Elf | Orc | Goblin
data PlayerCharacter = PlayerCharacter Race Profession
When using newtype, you're restricted to just one constructor with one
field.
Now consider the following type:
data CoolBool = CoolBool { getCoolBool :: Bool }
...
Filter data.frame rows by a logical condition
...
To select rows according to one 'cell_type' (e.g. 'hesc'), use ==:
expr[expr$cell_type == "hesc", ]
To select rows according to two or more different 'cell_type', (e.g. either 'hesc' or 'bj fibroblast'), use %in%:
expr[expr$...
MySQL query String contains
...
Quite simple actually:
mysql_query("
SELECT *
FROM `table`
WHERE `column` LIKE '%{$needle}%'
");
The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you'll need to use ...
Getting and removing the first character of a string
...cters:
x <- 'hello stackoverflow'
substring(x, 2, nchar(x))
Idea is select all characters starting from 2 to number of characters in x. This is important when you have unequal number of characters in word or phrase.
Selecting the first letter is trivial as previous answers:
substring(x,1,1...
How to get a list of properties with a given attribute?
...(typeof(MyAttribute), true)
where attr.Length == 1
select new { Property = p, Attribute = attr.First() as MyAttribute};
share
|
improve this answer
|
...
How to take all but the last element in a sequence using LINQ?
...eq = Enumerable.Range(1, 10);
Console.WriteLine(string.Join(", ", Seq.Select(x => x.ToString()).ToArray()));
Console.WriteLine(string.Join(", ", Seq.TakeAllButLast().Select(x => x.ToString()).ToArray()));
}
Or as a generalized solution discarding the last n items (using a queue like...
Hosting ASP.NET in IIS7 gives Access is denied?
..., nothing worked except the following, which solved the problem: open IIS, select the site, open Authentication (in the IIS section), right click Anonymous Authentication and select Edit, select Application Pool Identity.
sh...
Python: Tuples/dictionaries as keys, select, sort
...d like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
...