大约有 15,400 项符合查询结果(耗时:0.0192秒) [XML]
Pretty graphs and charts in Python [closed]
...ts of data though (correct me if I'm wrong). You can't add labels to the axis to summarise the hlabels or vlabels. I can't see anyway to plot multiple lines on a graph or have any control over the colours used. I could hack away at the script... moving to matplotlib...
– Jon...
Display help message with python argparse when script is called without any arguments
...derr.write('error: %s\n' % message)
self.print_help()
sys.exit(2)
parser = MyParser()
parser.add_argument('foo', nargs='+')
args = parser.parse_args()
Note that the above solution will print the help message whenever the error
method is triggered. For example, test.py --blah wil...
ALTER DATABASE failed because a lock could not be placed on database
...
After you get the error, run
EXEC sp_who2
Look for the database in the list. It's possible that a connection was not terminated. If you find any connections to the database, run
KILL <SPID>
where <SPID> is the SPID for the sessions that ...
How to enable MySQL Query Log?
...additional options to log only slow queries, or those which do not use indexes.
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How to get body of a POST in php?
...ain the input in its stream form (rather than buffering it like the first example above).
To maintain the stream resource something like this can be helpful:
<?php
function detectRequestBody() {
$rawInput = fopen('php://input', 'r');
$tempStream = fopen('php://temp', 'r+');
stream_...
UINavigationBar Hide back Button Text
How can I hide the Back Button Text from an UINavigation Controller?
I will only have the "
31 Answers
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How to use the C socket API in C++ on z/OS
...
Keep a copy of the IBM manuals handy:
z/OS V1R11.0 XL C/C++ Programming Guide
z/OS V1R11.0 XL C/C++ Run-Time Library Reference
The IBM publications are generally very good, but you need to get used to their format, as well as knowing where to look for an answer. You'l...
Regular expression to match balanced parentheses
I need a regular expression to select all the text between two outer brackets.
21 Answers
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How can I define colors as variables in CSS?
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CSS supports this natively with CSS Variables.
Example CSS file
:root {
--main-color:#06c;
}
#foo {
color: var(--main-color);
}
For a working example, please see this JSFiddle (the example shows one of the CSS selectors in the fiddle has the color hard coded to...
Failed to import new Gradle project: failed to find Build Tools revision *.0.0
...nd install the correct version of Android SDK Build-tools and you should fix the problem.
– andre
Oct 19 '13 at 7:44
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