大约有 44,400 项符合查询结果（耗时：0.0606秒） [XML]
How do I test if a variable is a number in Bash?
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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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Delete all documents from index/type without deleting type
...omething like this (using your example):
curl -XDELETE 'http://localhost:9200/twitter/tweet/_query' -d '{
"query" : {
"match_all" : {}
}
}'
Or you could just delete the type:
curl -XDELETE http://localhost:9200/twitter/tweet
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What makes Lisp macros so special?
...for a common case. The line
divisibleByTwo = [x for x in range(10) if x % 2 == 0]
yields a list containing all even numbers between 0 and 9. Back in the Python 1.5 days there was no such syntax; you'd use something more like this:
divisibleByTwo = []
for x in range( 10 ):
if x % 2 == 0:
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How to import multiple .csv files at once?
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274
Something like the following should result in each data frame as a separate element in a singl...
append multiple values for one key in a dictionary [duplicate]
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209
If I can rephrase your question, what you want is a dictionary with the years as keys and an a...
How do you get the width and height of a multi-dimensional array?
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247
You use Array.GetLength with the index of the dimension you wish to retrieve.
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How do I determine the target architecture of static library (.a) on Mac OS X?
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244
Another option is lipo; its output is brief and more readable than otool's.
An example:
% li...
How to secure MongoDB with username and password
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You need to start mongod with the --auth option after setting up the user.
From the MongoDB Si...
Insert, on duplicate update in PostgreSQL?
...ing syntax (similar to MySQL)
INSERT INTO the_table (id, column_1, column_2)
VALUES (1, 'A', 'X'), (2, 'B', 'Y'), (3, 'C', 'Z')
ON CONFLICT (id) DO UPDATE
SET column_1 = excluded.column_1,
column_2 = excluded.column_2;
Searching postgresql's email group archives for "upsert" leads to...