大约有 14,000 项符合查询结果(耗时:0.0556秒) [XML]
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
...hon or higer level languages instead of shell scripts for work that is typically thought as better done in shell scripts. The nature of mixed data and code, and a different syntax for each command all make shell scripts invisibly error prone
– jsbueno
Apr 17 '1...
List of tuples to dictionary
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Just call dict() on the list of tuples directly
>>> my_list = [('a', 1), ('b', 2)]
>>> dict(my_list)
{'a': 1, 'b': 2}
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Twitter Bootstrap: Text in navbar
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@capncaveman the twitter folks did not include that weird enough, but you can see it on their page examples.
– Andres Ilich
Mar 23 '12 at 20:05
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What is the difference between git am and git apply?
Both git am and git apply can be used to apply patches. I fail to see the difference. I see a difference now: git am automatically commits whereas git apply only touches the files but doesn't create a commit. Is that the only difference?
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How to execute ipdb.set_trace() at will while running pytest tests
I'm using pytest for my test suite. While catching bugs in complex inter-components test, I would like to place import ipdb; ipdb.set_trace() in the middle of my code to allow me to debug it.
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Express command not found
...age. Originally generated by the project is running express node app.js, because httpserver relevant code in app.js, and now this part of the code to the project directory bin/www below, app.js retain only achieve app logic code, you need to run the bin/www. Just a very simple application and refine...
How can I check the size of a collection within a Django template?
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A list is considered to be False if it has no elements, so you can do something like this:
{% if mylist %}
<p>I have a list!</p>
{% else %}
<p>I don't have a list!</p>
{% endif %}
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How to generate Javadoc HTML files in Eclipse?
... Does the Java JDK need to be installed? I have Java installed and can create Java programs in Eclipse...but javadoc.exe does not exist anywhere on my drive!
– AlainD
Jan 7 '17 at 23:36
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How can I disable editing cells in a WPF Datagrid?
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The WPF DataGrid has an IsReadOnly property that you can set to True to ensure that users cannot edit your DataGrid's cells.
You can also set this value for individual columns in your DataGrid as needed.
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Postgresql aggregate array
... GROUP BY, e.g. you don't need to repeat the student name on GROUP BY. You can merely GROUP BY on primary key. If you remove the primary key on student, you need to repeat the student name on GROUP BY.
CREATE TABLE grade
(Student_id int, Mark varchar(2));
INSERT INTO grade
(Student_id, Mar...
