大约有 22,536 项符合查询结果（耗时：0.0454秒） [XML]
CSS \9 in width property
...amp; below version
write like this:
width: 500px\9;
Read this article http://dimox.net/personal-css-hacks-for-ie6-ie7-ie8/
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How to remove remote origin from Git repo
... and then add it:
git remote remove origin
then:
git remote add origin http://your_url_here
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count the frequency that a value occurs in a dataframe column
...7]:
a
a
a 2
b 3
s 2
[3 rows x 1 columns]
See the online docs: http://pandas.pydata.org/pandas-docs/stable/groupby.html
Also value_counts() as @DSM has commented, many ways to skin a cat here
In [38]:
df['a'].value_counts()
Out[38]:
b 3
a 2
s 2
dtype: int64
If you wanted t...
How to write a scalable Tcp/Ip based server
...pts TCP/IP connections for long running connections (i.e. this is not like HTTP where there are many short connections, but rather a client connects and stays connected for hours or days or even weeks).
...
Hiding the scroll bar on an HTML page
...n the Presentation framework is responsible for rendering the scrollbars.
http://msdn.microsoft.com/en-us/library/ie/ms534393(v=vs.85).aspx
MSDN. Basic UI properties
W3C. About non-standard scrollbar properties
MSDN. .NET ScrollBar Class
WebKit
WebKit extensions related to scroll-bar customi...
Extract a regular expression match
...13 and the second component of x has two matches which are 12 and 34. See http://gsubfn.googlecode.com for more info.
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Regular expression for a hexadecimal number?
... use (php, javascript, python , golang, etc.).
This answer was taken from:http://ult-tex.net/info/perl/
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Get raw POST body in Python Flask regardless of Content-Type header
...l get the raw data regardless of content type, but with better handling of HTTP and WSGI behavior.
This reads the entire body into memory, which will be an issue if for example a large file is posted. This won't read anything if the Content-Length header is missing, so it won't handle streaming req...
Android Json and null values
...
Try with json.isNull( "field-name" ).
Reference: http://developer.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
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How to run Nginx within a Docker container without halting?
...o self-daemonize.
Use the daemon off configuration directive described in http://wiki.nginx.org/CoreModule.
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