大约有 3,200 项符合查询结果（耗时：0.0067秒） [XML]
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...3 col4 col5 col6
0 A B 0.20 -0.61 -0.49 1.49
1 A B -1.53 -1.01 -0.39 1.82
2 A B -0.44 0.27 0.72 0.11
3 A B 0.28 -1.32 0.38 0.18
4 C D 0.12 0.59 0.81 0.66
5 C D -0.13 -1.65 -1.64 0.50
6 C D -1.42 -0.11 -0.18 -0.44
7 E F -0.00 1.42 -0.2...
“The underlying connection was closed: An unexpected error occurred on a send.” With SSL Certificate
...transported is truly sensitive). To prefer TLS 1.2 but still allow 1.1 and 1.0, you have to OR them: ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
– Dusty
Mar 17 '17 at 17:33
...
Twitter API returns error 215, Bad Authentication Data
... 'oauth_signature_method' => 'HMAC-SHA1',
'oauth_version' => '1.0'
);
$oauth = array_map("rawurlencode", $oauth); // must be encoded before sorting
$query = array_map("rawurlencode", $query);
$arr = array_merge($oauth, $query); // combine the values THEN sort
asort($arr); // secondar...
How to set HTTP headers (for cache-control)?
...-cache, must-revalidate"); //HTTP 1.1
header("Pragma: no-cache"); //HTTP 1.0
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
//or, if you DO want a file to cache, use:
header("Cache-Control: max-age=2592000"); //30days (60sec * 60min * 24hours * 30days)
?>
Note t...
Which version of C# am I using
...keet's answer about Versions.
Here is short version of his answer.
C# 1.0 released with .NET 1.0
C# 1.2 (bizarrely enough); released
with .NET 1.1
C# 2.0 released with .NET 2.0
C# 3.0 released with .NET 3.5
C# 4.0 released with .NET 4
C# 5.0 released with ...
Is there a standard naming convention for git tags? [closed]
...
Version 1.0.0 of Semantic Versioning, by Tom Preston-Werner of GitHub fame, had a sub-specification addressing this:
Tagging Specification (SemVerTag)
This sub-specification SHOULD be used if you use a version control system...
What is the best Java library to use for HTTP POST, GET etc.? [closed]
...ht features:
Standards based, pure Java, implementation of HTTP versions 1.0
and 1.1
Full implementation of all HTTP methods (GET, POST, PUT, DELETE,
HEAD, OPTIONS, and TRACE) in an
extensible OO framework.
Supports encryption with HTTPS (HTTP over SSL) protocol.
Granular non-standards configura...
Programmatically obtain the Android API level of a device?
...rsion Name
1 BASE Android 1.0 (no codename)
2 BASE_1_1 Android 1.1 Petit Four
3 CUPCAKE Android 1.5 Cupcake
4 DONUT Android 1.6 Donut...
XSD - how to allow elements in any order any number of times?
...
I like the XSD 1.0 xs:all alternative.
– TWiStErRob
Nov 9 '12 at 23:19
8
...
How do I install the yaml package for Python?
... PyYAML implements the old YAML 1.1 spec from 2004 (Syck the even older 1.0 spec). ruamel.yaml is now the non-out-of-date package that implements the YAML1.2 specification
– Anthon
Mar 30 '16 at 19:19
...