大约有 43,100 项符合查询结果（耗时：0.0410秒） [XML]
PHP String to Float
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edited Oct 21 '12 at 1:11
answered Jan 26 '09 at 21:35
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List distinct values in a vector in R
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169
Do you mean unique:
R> x = c(1,1,2,3,4,4,4)
R> x
[1] 1 1 2 3 4 4 4
R> unique(x)
[1] ...
How do you make a HTTP request with C++?
...contents of a page (an API) and check the contents to see if it contains a 1 or a 0. Is it also possible to download the contents into a string?
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How do I generate random number for each row in a TSQL Select?
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19 Answers
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Check folder size in Bash
...a script that will calculate a directory size and if the size is less than 10GB, and greater then 2GB do some action. Where do I need to mention my folder name?
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Python matplotlib multiple bars
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112
import matplotlib.pyplot as plt
from matplotlib.dates import date2num
import datetime
x = [
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Using module 'subprocess' with timeout
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177
In Python 3.3+:
from subprocess import STDOUT, check_output
output = check_output(cmd, stder...
Version of Apache installed on a Debian machine
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17 Answers
17
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Abusing the algebra of algebraic data types - why does this work?
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140
Disclaimer: A lot of this doesn't really work quite right when you account for ⊥, so I'm goi...
What kind of Garbage Collection does Go use?
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118
Plans for Go 1.4+ garbage collector:
hybrid stop-the-world/concurrent collector
stop-the-wor...