大约有 15,000 项符合查询结果（耗时：0.0388秒） [XML]
Guid.NewGuid() vs. new Guid()
...n', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f11938151%2fguid-newguid-vs-new-guid%23new-answer', 'question_page');
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Python: List vs Dict for look up table
I have about 10million values that I need to put in some type of look up table, so I was wondering which would be more efficient a list or dict ?
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MySQL Creating tables with Foreign Keys giving errno: 150
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What's the current state of your database when you run this script? Is it completely empty? Your SQL runs fine for me when creating a database from scratch, but errno 150 usually has to do with dropping & recreating tables that are part of a foreign key. I'm getting the feeling ...
memcpy() vs memmove()
I am trying to understand the difference between memcpy() and memmove() , and I have read the text that memcpy() doesn't take care of the overlapping source and destination whereas memmove() does.
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How to use protractor to check if an element is visible?
...ider the case where there is no such element! $('.text-input-input') would alert the user elegantly; this might fail because filteredElement.length === 0?
– The Red Pea
Jan 4 '18 at 2:58
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How to permanently disable region-folding in Visual Studio 2008
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Option location moved in VS 2013: Text Editor -> C# -> View, Outline Statement Blocks.
– idbrii
Sep 18 '15 at 19:08
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Python - abs vs fabs
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How to list all properties of a PowerShell object
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This is very useful when scripting to know the type of data each field contains and to list all available field names without fetching data. Thanks!
– Yanick Girouard
Oct 18 '19 at 13:25
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Normal arguments vs. keyword arguments
How are "keyword arguments" different from regular arguments? Can't all arguments be passed as name=value instead of using positional syntax?
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rake db:schema:load vs. migrations
Very simple question here - if migrations can get slow and cumbersome as an app gets more complex and if we have the much cleaner rake db:schema:load to call instead, why do migrations exist at all?
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