大约有 46,000 项符合查询结果（耗时：0.0484秒） [XML]
What does the 'b' character do in front of a string literal?
...
answered Jun 7 '11 at 18:16
NPENPE
416k8181 gold badges858858 silver badges949949 bronze badges
...
C# Entity-Framework: How can I combine a .Find and .Include on a Model Object?
...
I would really recommend using the latter (SingleOrDefault), ToList will retrieve all entries first and then select one
– Sander Rijken
Sep 8 '11 at 13:51
...
LINQ to SQL Left Outer Join
... how this crazy syntax works? I fail to see how any of those keywords magically makes it a left join. What does the "into sr" do? Linq frustrates me sometimes :)
– Joe Phillips
Apr 7 '14 at 21:29
...
How to play a local video with Swift?
... import AVKit?
– Luca Angeletti
Aug 11 '17 at 22:11
|
show...
Does the APNS device token ever change, once created?
...hat device.
If the user restores backup data to a new device or reinstalls the
operating system, the device token changes.
share
|
improve this answer
|
follow
...
Detect 7 inch and 10 inch tablet programmatically
Is there a way to programmatically find whether the device the app is installed on is a 7 inch tablet or a 10 inch tablet?
...
Bash if [ false ] ; returns true
...ce "false" is a non-empty string, the test command always succeeds. To actually run the command, drop the [ command.
if false; then
echo "True"
else
echo "False"
fi
share
|
improve this answ...
Ruby on Rails - Import Data from a CSV file
...
The smarter_csv gem was specifically created for this use-case: to read data from CSV file and quickly create database entries.
require 'smarter_csv'
options = {}
SmarterCSV.process('input_file.csv', options) do |chunk|
chunk.each do |data_hash|
...
Booleans, conditional operators and autoboxing
...
Community♦
111 silver badge
answered Oct 7 '10 at 14:00
Bert FBert F
74.5k1111 gold badge...
remove legend title in ggplot
...
This will remove all legend titles. For more local control, the guide = guide_legend() command works. To remove the fill legend title, but to keep the color legend title, e.g. scale_fill_brewer(palette = "Dark2", guide = guide_legend(title = ...