大约有 42,000 项符合查询结果（耗时：0.0248秒） [XML]
Android canvas draw rectangle
how to draw empty rectangle with etc. borderWidth=3 and borderColor=black and part within rectangle don't have content or color. Which function in Canvas to use
...
How to leave/exit/deactivate a Python virtualenv
I'm using virtualenv and the virtualenvwrapper. I can switch between virtualenv's just fine using the workon command.
13...
How to insert a text at the beginning of a file?
... lines?
$ sed -i '1,10s/^/<added text> /' file
Or you can use Command Grouping:
$ { echo -n '<added text> '; cat file; } >file.new
$ mv file{.new,}
share
|
improve this answer
...
Copy all the lines to clipboard
... get the cursor to the first character of the file
"*y to start a yank command to the register * from the first line, until...
G to go the end of the file
share
|
improve this answer
|
...
Automatic exit from bash shell script on error [duplicate]
I've been writing some shell script and I would find it useful if there was the ability to halt the execution of said shell script if any of the commands failed. See below for an example:
...
What is the difference between 127.0.0.1 and localhost
...hen (intelligent) software will just turn that directly into an IP address and use it. Some implementations of gethostbyname will detect the dotted format (and presumably the equivalent IPv6 format) and not do a lookup at all.
Otherwise, the name has to be resolved. And there's no guarantee that yo...
Is there an expression for an infinite generator?
...entinel. However, as int() will always return 0, we can call int() forever and never reach 1. This will in effect produce an infinite list of 0's
– Olsgaard
Apr 14 at 8:47
...
Running V8 Javascript Engine Standalone
...
V8 is easy to build and does not come with the Java VM overhead from Mozilla's standalone Javascript interpreter. Luckily, V8 ships with code for building a console. Here is how to build this:
$> svn co http://v8.googlecode.com/svn/trunk v8...
How to copy file from HDFS to the local file system
...achine:50070), browse to the file you intend to copy, scroll down the page and click on download the file.
share
|
improve this answer
|
follow
|
...
Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh
I upgraded to the latest Java 7u40 on MacOS X and started getting the following message on the console when launching my application using Eclipse. The app works fine but I would like to find out the cause of the problem and hopefully a fix for it.
...