大约有 40,000 项符合查询结果（耗时：0.0288秒） [XML]
What do 'real', 'user' and 'sys' mean in the output of time(1)?
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GitHub upstream.
outputs something like:
real 0m1.003s
user 0m0.001s
sys 0m0.003s
The same holds for programs blocked on IO becoming available.
For example, the following program waits for the user to enter a character and press enter:
#include <stdio.h>
#include <stdlib....
Double vs. BigDecimal?
...cision. Working with doubles of various magnitudes (say d1=1000.0 and d2=0.001) could result in the 0.001 being dropped alltogether when summing as the difference in magnitude is so large. With BigDecimal this would not happen.
The disadvantage of BigDecimal is that it's slower, and it's a bit more...
What's the difference between Spring Data's MongoTemplate and MongoRepository?
...dating it...
With MongoTemplate it would look somewhat like this:
THREAD_001 THREAD_002
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|update(query("ID1"), Update().set("field1", "another string")) |update(query("ID1"), Updat...
No secret option provided to Rack::Session::Cookie warning?
...nswered Feb 12 '13 at 10:52
nbit001nbit001
22422 silver badges66 bronze badges
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How to pass a single object[] to a params object[]
...swered Feb 18 '16 at 6:54
ACOMIT001ACOMIT001
45811 gold badge77 silver badges1515 bronze badges
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How do I get an object's unqualified (short) class name?
...e are the updated test results with "SubstringStrChr" (saves up to about 0.001 s):
Reflection: 0.073065280914307 s ClassA
Basename: 0.12585079669952 s ClassA
Explode: 0.14593172073364 s ClassA
Substring: 0.060415267944336 s ClassA
SubstringStrChr: 0.059880912303925 s ClassA
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...t;/p> content.",
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[ and other fields ]
Sphinx query time:
0.001 sec.
Sphinx query time (1k concurrent):
=> 0.346 sec. (average)
=> 0.340 sec. (average of last 10 query)
MySQL query time:
"SELECT * FROM hb_posts WHERE id = 123;"
=> 0.001 sec.
MySQL query time (1k concu...
Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
...meout parameter:
>>> requests.get('http://github.com', timeout=0.001)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
requests.exceptions.Timeout: HTTPConnectionPool(host='github.com', port=80): Request timed out. (timeout=0.001)
Note:
timeou...
Javascript: formatting a rounded number to N decimals
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edited Feb 8 '10 at 11:33
answered Feb 8 '10 at 11:27
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How to display Base64 images in HTML?
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