大约有 40,000 项符合查询结果（耗时：0.0666秒） [XML]
Display milliseconds in Excel
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I've discovered in Excel 2007, if the results are a Table from an embedded query, the ss.000 does not work. I can paste the query results (from SQL Server Management Studio), and format the time just fine. But when I embed the query as a Data Connection in Excel, the format al...
How to create an object property from a variable value in JavaScript? [duplicate]
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@Jessica kangax.github.io/compat-table/es6/…
– Oriol
May 11 '16 at 19:33
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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable
...uld be noticeable impact.
Enumerable.Empty does not create an object per call thus putting less load on GC.
If the code is in low-throughput location, then it boils down to aesthetic considerations though.
share
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Image width/height as an attribute or in CSS? [duplicate]
...entational attributes regardless of where you put them. For semantics we establish what the image means to content in the alt tag. I don't remember why it was so important to width/height in the HTML but I suspect it was in case you hit browsers without CSS rendering. It's not a semantics issue. If ...
Sending images using Http Post
...client to the Django server using Http Post. The image is chosen from the gallery. At present, I am using list value name Pairs to send the necessary data to the server and receiving responses from Django in JSON. Can the same approach be used for images (with urls for images embedded in JSON respon...
What is the volatile keyword useful for?
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volatile has semantics for memory visibility. Basically, the value of a volatile field becomes visible to all readers (other threads in particular) after a write operation completes on it. Without volatile, readers could see some non-updated value.
To answer your question: Y...
Impossible to Install PG gem on my mac with Mavericks
I'm trying to install the pg gem in order to work again with my rails projects. But I get this error:
26 Answers
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Relative paths in Python
..., you want to do something like this:
import os
dirname = os.path.dirname(__file__)
filename = os.path.join(dirname, 'relative/path/to/file/you/want')
This will give you the absolute path to the file you're looking for. Note that if you're using setuptools, you should probably use its package re...
What is the maximum amount of RAM an app can use?
...significant determinant, as larger resolutions mean larger bitmaps, and so tablets and high-resolution phones will tend to have higher values yet. For example, you will see devices with 48MB heaps, and I wouldn't be surprised if there are values higher than that.
How is it possible that apps exc...
Implicit “Submit” after hitting Done on the keyboard at the last EditText
...o my password, if I hit "Done" on the keyboard, the login form is automatically submitted, without me having to click the submit button. How is this done?
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