大约有 19,606 项符合查询结果（耗时：0.0287秒） [XML]
Go: panic: runtime error: invalid memory address or nil pointer dereference
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Python xml ElementTree from a string source?
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Detect if a page has a vertical scrollbar?
...ned content in a way that is reliable cross-browser. The answers which are based on body size miss this entirely (the body is not the offset parent of such content unless it is positioned itself). And those answers checking $( document ).width() and .height() fall prey to jQuery's buggy detection of...
How do I see the last 10 commits in reverse-chronological order with SVN?
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How to generate a new Guid in stored procedure?
...u're using C# so I assume that you're using SQL Server. I'm sure other database system have similar functions.
select NEWID()
If you're using Oracle then you can use the SYS_GUID() function. Check out the answer to this question: Generate a GUID in Oracle
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How to verify a user's password in Devise
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HTTPS setup in Amazon EC2
...icate, right? Having trouble finding decent info on doing this that is NOT based on Elastic Beanstalk.
– Stephen Tetreault
Jan 20 '17 at 21:22
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How to run script as another user without password?
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What is the proper way to use the node.js postgresql module?
..." way to get a client object for each request that I need to query the database.
7 Answers
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C# LINQ find duplicates in List
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The easiest way to solve the problem is to group the elements based on their value, and then pick a representative of the group if there are more than one element in the group. In LINQ, this translates to:
var query = lst.GroupBy(x => x)
.Where(g => g.Count() > 1...