大约有 40,000 项符合查询结果（耗时：0.0470秒） [XML]
What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
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Line continuation for list comprehensions or generator expressions in python
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Regex exactly n OR m times
...
Here is the complete list of quantifiers (ref. http://www.regular-expressions.info/reference.html):
?, ?? - 0 or 1 occurences (?? is lazy, ? is greedy)
*, *? - any number of occurences
+, +? - at least one occurence
{n} - exactly n occurences
{n,m} - n to m occurences, inclusi...
ThreadStatic v.s. ThreadLocal: is generic better than attribute?
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Versioning SQL Server database
...l, I recommend keeping a back up of the database and using Redgate (http://www.red-gate.com/) products to do the comparisons. They don't come cheap, but they are worth every penny.
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How do you delete an ActiveRecord object?
...tion
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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How can I make Bootstrap columns all the same height?
...his solution also works well for multiple rows (column wrapping):
https://www.bootply.com/gCEXzPMehZ
Other workarounds
These options will be recommended by others, but are not a good idea for responsive design. These only work for simple single row layouts w/o column wrapping.
1) Using huge nega...
When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
...
Nice Explanation from
http://www.programmerinterview.com/index.php/data-structures/dfs-vs-bfs/
An example of BFS
Here’s an example of what a BFS would look like. This is something like Level Order Tree Traversal where we will use QUEUE with ITERA...
Using curl POST with variables defined in bash script functions
...ion/json" \
-X POST --data "$(generate_post_data)" "https://xxx:xxxxx@xxxx-www.xxxxx.com/xxxxx/xxxx/xxxx"
This said, here are a few clarifications about shell quoting rules:
The double quotes in the -H arguments (as in -H "foo bar") tell bash to keep what's inside as a single argument (even if it...
Default function arguments in Rust
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