大约有 40,000 项符合查询结果（耗时：0.0507秒） [XML]
Sample random rows in dataframe
...356774 -0.1640883
9 -0.3983045 0.7157506
10 -0.9060305 2.3234110
Then select some rows at random:
> df[sample(nrow(df), 3), ]
X1 X2
9 -0.3983045 0.7157506
2 -1.1334614 -0.1973846
10 -0.9060305 2.3234110
...
What should a Multipart HTTP request with multiple files look like? [duplicate]
... > a.html
Run:
nc -l localhost 8000
Open the HTML on your browser, select the files and click on submit and check the terminal.
nc prints the request received. Firefox sent:
POST / HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Fire...
Cannot find executable for CFBundle CertUIFramework.axbundle
...-down menu from the top bar (of that screen if you have more than one) and select "Disable BTT for Current App". It will turn to a play icon when it's disabled.
Make sure the app name on the bar is still "iOS Simulator" as mine jumped to "Finder" a few times when I clicked the top bar!
Now re-set...
How to hide keyboard in swift on pressing return key?
...view controller.swift file is on the other. Click on a text field and then select from the right hand side utilities panel 'Show the Connection Inspector' tab. Control drag from the 'Did End on Exit' to the above function in your swift file. Repeat for any other textfield in that scene and link to t...
Where are iOS simulator screenshots stored?
...
In the Organizer view just right-click a screenshot and select "Show in Finder...".
This will open the screenshots folder in the Finder for you.
share
|
improve this answer
...
How to run a C# console application with the console hidden
... our form is called when the user right clicks on the system tray icon and selects preferences. THIS IS THE RIGHT ANSWER!!!
– Bluebaron
Jul 4 '15 at 0:31
add a comment
...
Save the console.log in Chrome to a file
... save the console output to a file natively
Open the console
Right-click
Select "save as.."
Chrome Developer instructions here.
share
|
improve this answer
|
follow
...
Xcode 6: Keyboard does not show up in simulator
...ommand+K shortcut.
Reattach keyboard to simulator :
a. Open Simulator
b. Select Hardware -> Keyboard
c. Uncheck and then check 'Connect Hardware Keyboard'
OR simply press the Shift + Command + K shortcut
share
...
Installing SciPy and NumPy using pip
...dly cut'n'paste the shell commands - there will be a few lines you need to select depending on your architecture, etc., and you'll need to fix/add the correct directories that it incorrectly assumes as well.
The third thing you may need is to yum install numpy-f2py or the equivalent.
Oh, yes and l...
How do I install the OpenSSL libraries on Ubuntu?
...b to see a list of matching package names (which can help when you need to select the correct version of a package that has multiple versions or other variations available).
Bash completion is actually very useful... for example, you can also get a list of commands that apt-get supports by typing s...