大约有 44,000 项符合查询结果（耗时：0.0482秒） [XML]
List to array conversion to use ravel() function
... wanted a way to do this without using an extra module. First turn list to string, then append to an array:
dataset_list = ''.join(input_list)
dataset_array = []
for item in dataset_list.split(';'): # comma, or other
dataset_array.append(item)
...
File Upload ASP.NET MVC 3.0
... Another point is you can replace the controller and action names (strings) in the Html.BeginForm() call like so: Html.BeginForm(null, null, FormMethod.Post, new { enctype = "multipart/form-data" }). This is useful if it is a partial view that is called from multiple parent views (or similar...
List Git aliases
...on the answer by johnny. It applies if you're not using git-alias from git-extras.
On Linux, run once:
git config --global alias.alias "! git config --get-regexp ^alias\. | sed -e s/^alias\.// -e s/\ /\ =\ /"
This will create a permanent git alias named alias which gets stored in your ~/.gitconf...
Printing newlines with print() in R
...
An advantage is that you don't have to remember to append a "\n" to the string passed to cat() to get a newline after your message. E.g. compare the above to the same cat() output:
> cat("File not supplied.\nUsage: ./program F=filename")
File not supplied.
Usage: ./program F=filename>
an...
if a ngSrc path resolves to a 404, is there a way to fallback to a default?
... Works well if the url is broken (404), but if it's an empty string ng-src silently swallows the error.
– Stephen Patten
Sep 18 '13 at 18:43
...
Error in Swift class: Property not initialized at super.init call
...out this safety check 1.
Like in this sample
class Shape {
var name: String
var sides : Int
init(sides:Int, named: String) {
self.sides = sides
self.name = named
}
}
class Triangle: Shape {
var hypotenuse: Int
init(hypotenuse:Int) {
super.init(sides...
Call two functions from same onclick [duplicate]
...n overload that translates as one cell in the stack and half a millisecond extra for processing. It is more than worth it for the gain in readability and easy of maintenance. Imagine that in the future you have to add three extra methods, with conditional logic.
– Renan
...
SELECT * FROM X WHERE id IN (…) with Dapper ORM
...
Dapper supports this directly. For example...
string sql = "SELECT * FROM SomeTable WHERE id IN @ids"
var results = conn.Query(sql, new { ids = new[] { 1, 2, 3, 4, 5 }});
share
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...
Return anonymous type results?
...:
public class DogWithBreed
{
public Dog Dog { get; set; }
public string BreedName { get; set; }
}
public IQueryable<DogWithBreed> GetDogsWithBreedNames()
{
var db = new DogDataContext(ConnectString);
var result = from d in db.Dogs
join b in db.Breeds on d.B...
Is there a difference between using a dict literal and a dict constructor?
...o be extra nice. Just as it always seems to offer to convert single-quoted strings into double-quoted -- for no apparent reason.
– maligree
Jul 7 '11 at 12:53
1
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