大约有 40,000 项符合查询结果（耗时：0.0525秒） [XML]
Add up a column of numbers at the Unix shell
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... | paste -sd+ - | bc
is the shortest one I've found (from the UNIX Command Line blog).
Edit: added the - argument for portability, thanks @Dogbert and @Owen.
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How to use background thread in swift?
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@NikitaPronchik Isn't this clear from the answer? Else feel free to make a edit to it.
– tobiasdm
Mar 3 '15 at 21:16
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Is there a good tutorial on MSBuild scripts? [closed]
...ct, and I need to create a build script; a build script that I can trigger from my cruisecontrol server. Since nant has not been maintained for ages, I figure that MSBuild is the way to go.
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Is there a Google Keep API? [closed]
...e most popular issues with many stars in google code but still no response from google! You can also add stars to this issue, maybe google hears that!
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Can hash tables really be O(1)?
...xpected worst case time if you pick your hash function uniformly at random from a universal family of hash functions. Expected worst case is not the same as average case.
Disclaimer: I don't formally prove hash tables are O(1), for that have a look at this video from coursera [1]. I also don't disc...
How do I get the parent directory in Python?
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Update from Python 3.4
Use the pathlib module.
from pathlib import Path
path = Path("/here/your/path/file.txt")
print(path.parent)
Old answer
Try this:
import os.path
print os.path.abspath(os.path.join(yourpath, os.pardir))
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Difference between .on('click') vs .click()
...ctor. I think that 1 handler would be created, but that the overhead comes from binding this handler to multiple elements and monitoring all these elements. At least, I didn't find this in the documentation.
– html_programmer
Jun 3 '14 at 14:36
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Error: 10 $digest() iterations reached. Aborting! with dynamic sortby predicate
...rc in my controller to be called in an endless loop. If I remove the ng-if from this line, then the problem is solved.
<iframe ng-if="chat.src" id='chat' name='chat' class='chat' ng-src="{{myTrustSrc(chat.src)}}"></iframe>
The function is only called a few times when ng-if isn't used....
How to get just the parent directory name of a specific file
How to get ddd from the path name where the test.java resides.
10 Answers
10
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Change the URL in the browser without loading the new page using JavaScript
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Sample code is cut and pasted from developer.mozilla.org/en/DOM/Manipulating_the_browser_history . Which actually bothers explaining what foo and bar mean in this case.
– mikemaccana
Feb 1 '11 at 11:45
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