大约有 44,000 项符合查询结果（耗时：0.0561秒） [XML]
Why does ReSharper want to use 'var' for everything?
... for everything - I do lots and lots of code reviews using TFS (web based diffs) and it makes my job extremely difficult: i.e. var items = GetSomeItems(); vs IDataReader dr = GetSomeItems(); Missing using statement on both but easier for me to catch when using IDataReader vs var.
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In Scala, what exactly does 'val a: A = _' (underscore) mean?
...s initialises the variable to a default value. From the Scala Language Specification:
0 if T is Int or one of its subrange types,
0L if T is Long,
0.0f if T is Float,
0.0d if T is Double,
false if T is Boolean,
() if T is Unit,
null for all other types T.
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How add context menu item to Windows Explorer for folders [closed]
...a directory in right panel:
HKEY_CLASSES_ROOT\Directory\Background\shell if you are administrator
HKEY_CURRENT_USER\Software\Classes\directory\Background\shell if you are a normal user
Context menu for right click on folders in right panel of Windows Explorer:
HKEY_CLASSES_ROOT\Directory\shell...
css overflow - only 1 line of text
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If you want to restrict it to one line, use white-space: nowrap; on the div.
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Use PHP to create, edit and delete crontab jobs?
...ntab -r' delete all the jobs of the user? Is there any way to delete a specific line of job in the crontabs of the user? Loading, searching and then deleting the found line seems to be the only way.
– datasn.io
Dec 12 '10 at 11:26
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UITableView Cell selected Color?
...nd non-nil for section-group tables UITableViewStyleGrouped).
Therefore, if you're using a plain-style table, then you'll need to alloc-init a new UIView having your desired background colour and then assign it to selectedBackgroundView.
Alternatively, you could use:
cell.selectionStyle = UITabl...
How do I run a rake task from Capistrano?
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With 'bundle exec' if available
– Bogdan Gusiev
Mar 18 '11 at 14:20
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Sending a mail from a linux shell script
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If the server is well configured, eg it has an up and running MTA, you can just use the mail command.
For instance, to send the content of a file, you can do this:
$ cat /path/to/file | mail -s "your subject" your@email.com...
How to run a command in the background and get no output?
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Use nohup if your background job takes a long time to finish or you just use SecureCRT or something like it login the server.
Redirect the stdout and stderr to /dev/null to ignore the output.
nohup /path/to/your/script.sh > /dev/...
Is the SQL WHERE clause short-circuit evaluated?
...icularly when operands or operators might
cause conditions to be raised or if the results of the expressions
can be determined without completely evaluating all parts of the
expression.
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