大约有 47,000 项符合查询结果（耗时：0.0497秒） [XML]
Query to list number of records in each table in a database
...nt Studio), pause the trace and discard any results you have recorded till now;
Then, right click a table and select property from the pop up menu;
start the trace again;
Now in SQL Server Management studio select the storage property item on the left;
Pause the trace and have a look at what TSQL ...
How to prevent sticky hover effects for buttons on touch devices
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This is now widely supported in mobile browsers, and works like a charm. I think it should be the accepted answer.
– Trevor Burnham
May 28 '19 at 2:20
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Assign multiple columns using := in data.table, by group
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This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b = 1:6)
f <- function(x) {list("hi", "hello")}
x[ , c("col1", "col2") := f(), by = a][]
# a b col1 col2
# 1: 1 1 hi hello
# ...
Was PreferenceFragment intentionally excluded from the compatibility package?
...nt:0.1.1'
Important Update: The latest revision of the v7 support library now has a native PreferenceFragmentCompat.
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Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
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Heads up - there's an easier way to handle this now. Check my reply.
– Sean McSomething
Jan 17 '13 at 23:00
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How do I create a copy of an object in PHP?
..._clone() {
$this->someObject = clone $this->someObject;
}
}
Now you can do cloning:
$bar = new MyClass();
$foo = clone $bar;
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In Python how should I test if a variable is None, True or False
...il"
# execution continues from here, regardless of exception or not
And now you can have a much richer type of notification from the simulate method as to what exactly went wrong, in case you find error/no-error not to be informative enough.
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Is it possible to write to the console in colour in .NET?
... +1 When you've been doing this stuff for over 10 years and just now learned what they knew 10 years ago....this never gets old, ha.
– Jester
May 29 at 1:07
add a co...
Behaviour of increment and decrement operators in Python
...++ and -- operators were left out for consistency and simplicity. I don't know the exact argument Guido van Rossum gave for the decision, but I can imagine a few arguments:
Simpler parsing. Technically, parsing ++count is ambiguous, as it could be +, +, count (two unary + operators) just as easily...
How can I save an image to the camera roll?
...r your patience qegal. I haven't had a chance to revisit this issue until now. Your EDIT us super helpful. The image is in the app's bundle. There are several images in the app and they can be viewed as small thumbnails. When a small thumbnail is selected it goes to a new view and a fullscreen v...