大约有 32,000 项符合查询结果（耗时：0.0543秒） [XML]
How do I get the RootViewController from a pushed controller?
...)rootViewController
{
return [[self viewControllers] firstObject];
}
then you can use:
UIViewController *rootViewController = [self.navigationController rootViewController];
edit
OP asked for a property in the comments.
if you like, you can access this via something like self.navigationCo...
Vim users, where do you rest your right hand? [closed]
...ds
My Recomendation: "down-up-left-right"
Keep up/down where they are, then make 3rd & 4th fingers left & right
Then, to avoid overwriting base Vim features: Toss whatever used to be on ; to the now-empty h button
As a cute bonus, the "l" key now stands for "left" ;)
noremap l h
...
How can I clear event subscriptions in C#?
...
@S.Buda Because if it's null then you'll get a null ref. It's like using a List.Clear() vs myList = null.
– AustinWBryan
Jun 29 at 5:51
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Tools to generate database tables diagram with Postgresql? [closed]
..., and drool. Note the tabs!
You'll need to download the JDBC driver here, then your command should look something like:
java -jar schemaspy-6.0.0-rc2.jar -t pgsql -db database_name -host myhost -u username -p password -o ./schemaspy -dp postgresql-9.3-1100.jdbc3.jar -s public -noads
Sometimes us...
Pipe subprocess standard output to a variable [duplicate]
...and you want to merge them, you can do that by piping stderr to stdout and then catching stdout.
subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
As mentioned by Chris Morgan, you should be using proc.communicate() instead of proc.read().
>>> proc = subprocess.Pop...
Print JSON parsed object?
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@SuperUberDuper: ...Then you wouldn't be trying to build a string representation, now, would you. :)
– cHao
Dec 8 '15 at 15:42
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Could not find an implementation of the query pattern
...e these references are included:
System.Data.Linq
System.Data.Entity
Then add the using statement
using System.Linq;
share
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How to select the rows with maximum values in each group with dplyr? [duplicate]
...nt the number of values per group. Copy the count table into a new object. Then filter for the max of the group based on the first grouping characteristic. For example:
count_table <- df %>%
group_by(A, B) %>%
count() %>%
arrange(A, desc(...
Is it possible to for SQL Output clause to return a column not being inserted?
...GE INTO ReportOption USING @ReportOption AS temp ON 1 = 0
WHEN NOT MATCHED THEN
INSERT (field1, field2)
VALUES (temp.Field1, temp.Field2)
OUTPUT temp.PracticeId, inserted.ReportOptionId, inserted.Field1, inserted.Field2
INTO @PracticeReportOption (PracticeId, ReportOptionId, Field1, ...
Single Line Nested For Loops
...a nested for loop (for your first comprehension you'd get 1 element for i, then every value from j, 2nd element into i, then every value from j, etc.)
Can it be simulated by a different for loop structure?
Yes, already shown above.
Can this for loop be nested with a similar or different st...