大约有 45,000 项符合查询结果（耗时：0.0514秒） [XML]
Use of alloc init instead of new
...
There are a bunch of reasons here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you should use whatever you...
DropDownList in MVC 4 with Razor
...
If you defined the List in controller, Then you need in View to cast it , like this: @Html.DropDownListFor(model => model.model_year, ViewBag.Years as List<SelectListItem>, "-- Select Year --")
...
Setting Authorization Header of HttpClient
...
This is not working, if you inspect the Auhtorization header is does not contains anything more than a string Basic.
– Raffaeu
Oct 31 '14 at 11:59
...
What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
For example if I were to have a table "Person" with a column "id" that references a column "id" in table "Worker"
5 Answers...
Redirect Windows cmd stdout and stderr to a single file
...
If there is a Handle, there cannot be a space between the Handle (i.e. 2) and the redirect operator (i.e. >). Therefore 2> 2.txt works (or 2> &1) 2 > 2.txt does not; 2 > &1 does not.
...
How do you get the length of a list in the JSF expression language?
...this.somelist.length; }
In your JSF page:
#{MyBean.somelistLength}
Two: If you're using Facelets (Oh, God, why aren't you using Facelets!), you can add the fn namespace and use the length function
In JSF page:
#{ fn:length(MyBean.somelist) }
...
Android, How to limit width of TextView (and add three dots at the end of text)?
...
btw, android:maxLines can be greater than 1 if you want :)
– Touré Holder
Nov 23 '17 at 7:35
1
...
Find substring in the string in TWIG
I want to find substring of the string or check if there is no such substring using Twig. On the words, I need analogue of 'strstr' or 'strpos' in php.
I googled and searched this issue in stackoverflow but nothing found. Does someone know how to solve this problem?
...
Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
...Stage is involved will have cascading delete enabled by default. It means, if you delete a Stage entity
the delete will cascade directly to Side
the delete will cascade directly to Card and because Card and Side have a required one-to-many relationship with cascading delete enabled by default agai...
How to declare a variable in a PostgreSQL query
... CTEs being used as vriables. But than i quickly ran into a problem where different data modifying queries in CTEs are not guaranteed to see each other's effects. I had to use multiple CTEs as i needed to use that variable in multiple queries.
– Zia Ul Rehman Mughal
...