大约有 44,000 项符合查询结果（耗时：0.0412秒） [XML]
How to reshape data from long to wide format
...
reshape is an outstanding example for a horrible function API. It is very close to useless.
– NoBackingDown
Oct 26 '17 at 15:18
15
...
How to use icons and symbols from “Font Awesome” on Native Android Application
...
Font Awesome seems to be working fine for me in my android app. I did the following:
Copied fontawesome-webfont.ttf into my assests folder
Found the character entities for icons I wanted, using this page: http://fortawesome.github.io/Font-Awesome/cheatsheet/
C...
How do I add a password to an OpenSSH private key that was generated without a password?
...enerated an OpenSSH private key using puttygen (and exported it in OpenSSH format). How can I put a password on this existing key (I know how to generate a new key with a password)?
...
Android “Only the original thread that created a view hierarchy can touch its views.”
I've built a simple music player in Android. The view for each song contains a SeekBar, implemented like this:
27 Answers
...
How can I create a copy of an object in Python?
...y independent copy of an object you can use the copy.deepcopy() function.
For more details about shallow and deep copying please refer to the other answers to this question and the nice explanation in this answer to a related question.
...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
... are taking too much time to execute.
In phpMyAdmin you will have a button for stopping threads by using KILL, if you are using command line interface just use the KILL command followed by the thread id, like in the following example:
KILL 115;
This will terminate the connection for the correspon...
PHP Redirect with POST data
...me experts who have said that it is not possible , so I would like to ask for an alternative solution.
13 Answers
...
How do I convert a String object into a Hash object?
...to be evaluated as a hash by making sure that the above statement is valid for that string.
– Waseem
Nov 3 '09 at 14:38
1
...
How do I tell if a regular file does not exist in Bash?
...
I struggled a bit to find the right syntax for "if any of 2 files does not exist". The following both work: if [ ! \( -f "f1" -a -f "f2" \) ] ; then echo MISSING; fi if [ ! -f "f1" ] || [ ! -f "f2" ] ; then echo MISSING; fi
– mivk
...
$.focus() not working
...
Actually the example you gave for focusing on this site works just fine, as long as you're not focused in the console. The reason that's not working is simply because it's not stealing focus from the dev console. If you run the following code in your cons...