大约有 47,000 项符合查询结果（耗时：0.0477秒） [XML]
Select random lines from a file
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edited Jun 16 '16 at 20:48
DomainsFeatured
1,25411 gold badge1919 silver badges3131 bronze badges
an...
Initializing a two dimensional std::vector
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208
Use the std::vector::vector(count, value) constructor that accepts an initial size and a defaul...
Command-line Tool to find Java Heap Size and Memory Used (Linux)?
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edited Feb 1 '17 at 20:03
cybersoft
1,2631111 silver badges2525 bronze badges
answered Oct 9 '12 at...
Finding Number of Cores in Java
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edited Nov 17 '11 at 9:03
answered Jan 21 '11 at 13:58
d...
What function is to replace a substring from a string in C?
...| !rep)
return NULL;
len_rep = strlen(rep);
if (len_rep == 0)
return NULL; // empty rep causes infinite loop during count
if (!with)
with = "";
len_with = strlen(with);
// count the number of replacements needed
ins = orig;
for (count = 0; tmp = s...
My docker container has no internet
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110
First thing to check is run cat /etc/resolv.conf in the docker container. If it has an invalid D...
ElasticSearch - Return Unique Values
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You can use the terms aggregation.
{
"size": 0,
"aggs" : {
"langs" : {
"terms" : { "field" : "language", "size" : 500 }
}
}}
A search will return something like:
{
"took" : 16,
"timed_out" : false,
"_shards" : {
"total" : 2,
"successful" : 2,
"...
How can I check whether a numpy array is empty or not?
...e a look at the .size attribute. It is defined as an integer, and is zero (0) when there are no elements in the array:
import numpy as np
a = np.array([])
if a.size == 0:
# Do something when `a` is empty
share
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Diff output from two programs without temporary files
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answered Sep 26 '10 at 23:06
John KugelmanJohn Kugelman
292k6262 gold badges455455 silver badges506506 bronze badges
...
CSS/HTML: Create a glowing border around an Input Field
...der:focus {
outline: none;
border-color: #9ecaed;
box-shadow: 0 0 10px #9ecaed;
}
Live demo: http://jsfiddle.net/simevidas/CXUpm/1/show/
(to view the code for the demo, remove "show/" from the URL)
label {
display:block;
margin:20px;
width:420px;
overflow:au...