大约有 30,000 项符合查询结果（耗时：0.0229秒） [XML]
Sort a text file by line length including spaces
...eld. I guess it's not crazy behaviour. It has this:
"Finally, there are times when it is convenient to force awk to rebuild the entire record, using the current value of the fields and OFS. To do this, use the seemingly innocuous assignment:"
$1 = $1 # force record to be reconstituted
print ...
PHP date yesterday [duplicate]
...is only for formatting, but it accepts a second parameter.
date("F j, Y", time() - 60 * 60 * 24);
To keep it simple I just subtract 24 hours from the unix timestamp.
A modern oop-approach is using DateTime
$date = new DateTime();
$date->sub(new DateInterval('P1D'));
echo $date->format('F ...
How to replace ${} placeholders in a text file?
...!/bin/sh
#Set variables
i=1
word="dog"
#Read in template one line at the time, and replace variables (more
#natural (and efficient) way, thanks to Jonathan Leffler).
while read line
do
eval echo "$line"
done < "./template.txt"
Output:
#sh script.sh
the number is 1
the word is dog
...
Is there a way to 'uniq' by column?
...
This approach is two times faster than sort
– bitek
Feb 17 '15 at 21:12
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Converting datetime.date to UTC timestamp in Python
I am dealing with dates in Python and I need to convert them to UTC timestamps to be used
inside Javascript. The following code does not work:
...
ASP.NET Web Site or ASP.NET Web Application?
...t will come up with new names for the DLL files generated by pages all the time. That can lead to having several close copies of DLL files containing the same class name,
which will generate plenty of errors. The Web Site project was introduced with Visual Studio 2005, but it has turned out not t...
Algorithm to generate a crossword
...decided to create as many crosswords as possible in an arbitrary amount of time. If you only have a small word list, then you'll get dozens of possible crosswords in 5 seconds. A larger crossword might only be chosen from 5-6 possibilities.
When placing a new word, instead of placing it immediatel...
Contains method for a slice
...le, that's true. But what it takes to add such basic functionality into runtime? I haven't found such issues in Go repo on github. That's sad and strange.
– Igor Petrov
May 23 '17 at 6:06
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How do I sort a dictionary by value?
...ey, d[key]) ----- -> b: 1 c: 5 a: 7 d: 3 The results change each time I run the code: weird. (sorry, can't get the code to display properly)
– bli
Aug 13 '14 at 15:58
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How do I look inside a Python object?
...
I agree with usuallyuseless. A lot of the time, a simple call to dir() will suffice, thus saving you the trouble of having to look through the source code.
– Sasha Chedygov
Jun 18 '09 at 0:13
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