大约有 45,000 项符合查询结果（耗时：0.0834秒） [XML]
Converting file size in bytes to human-readable string
...nary, so to express 1551859712 as ~1.4GiB would be correct.
On the other hand, hard disk manufacturers like to use decimal, so they would call it ~1.6GB.
And just to be confusing, floppy disks use a mixture of the two systems - their 1MB is actually 1024000 bytes.
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How to sleep for five seconds in a batch file/cmd [duplicate]
...ds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
30 Answer...
The 'json' native gem requires installed build tools
...on my windows 7 machine. Now I tried to install the JSON gem using the command, "gem install json" and got the following error.
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Remove Identity from a column in a table
We have a 5GB table (nearly 500 million rows) and we want to remove the identity property on one of the column, but when we try to do this through SSMS - it times out.
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Import CSV to SQLite
...ments, SQLite sees your input as 1, 25, 62, 7. I also had a problem with , and in my case it was solved by changing "separator ," into ".mode csv". So you could try:
sqlite> create table foo(a, b);
sqlite> .mode csv
sqlite> .import test.csv foo
The first command creates the column names ...
What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]
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Well, sounds weird if you read "And after B executes and return the salary, A arrow C". It'll be more like A refers to C.
– Ben
Apr 6 '10 at 20:54
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Python datetime to string without microsecond component
...format a datetime object in a specific format that is different from the standard format, it's best to explicitly specify that format:
>>> datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
'2011-11-03 18:21:26'
See the documentation of datetime.strftime() for an explanation of the % ...
Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
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What are good examples of genetic algorithms/genetic programming solutions? [closed]
Genetic algorithms (GA) and genetic programming (GP) are interesting areas of research.
34 Answers
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Remove all subviews?
...h thanks to cocoafan: This situation is muddled up by the fact that NSView and UIView handle things differently. For NSView (desktop Mac development only), you can simply use the following:
[someNSView setSubviews:[NSArray array]];
For UIView (iOS development only), you can safely use makeObjects...