大约有 7,549 项符合查询结果（耗时：0.0257秒） [XML]
problem with and :after with CSS in WebKit
...an help you with that) and then provide that representation in URL-encoded form - e.g. for ▾ (U+25BE BLACK DOWN-POINTING SMALL TRIANGLE) UTF-8 representation is \xE2\x96\xBE which is %E2%96%BE when URL-encoded.
share
...
Excel “External table is not in the expected format.”
...sing the code shown below. I get an "External table is not in the expected format." error unless I have the file already open in Excel. In other words, I have to open the file in Excel first before I can read if from my C# program. The xlsx file is on a share on our network. How can I read the file ...
Margin-Top push outer div down
... or
more boxes (which may be next to one
another or nested) combine to form a
single margin.
My theory is that since your first element is next to the body the two margins combine and are applied to the body: this forces the body's content to start below the applied collapsed margin in compl...
Why is iterating through a large Django QuerySet consuming massive amounts of memory?
...trieved, all at once, when you first enter that loop and get the iterating form of the queryset. The wait you experience is Django loading the database rows and creating objects for each one, before returning something you can actually iterate over. Then you have everything in memory, and the resu...
How do I create test and train samples from one dataframe with pandas?
I have a fairly large dataset in the form of a dataframe and I was wondering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing.
...
How does the Comma Operator work
...semicolon. The difference is that two expressions separated by a semicolon form two separate statements, while comma-separation keeps all as a single expression. This is why comma operator is sometimes used in the following scenarios:
C syntax requires an single expression, not a statement. e.g. i...
Difference between UIViewContentModeScaleAspectFit and UIViewContentModeScaleToFill?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
...
Polymorphism in C++
...ider:
Type1 x;
Type2 y;
f(x);
f(y);
Here, f() is to perform some operation and is being given values x and y as inputs.
To exhibit polymorphism, f() must be able to operate with values of at least two distinct types (e.g. int and double), finding and executing distinct type-a...
How to convert a byte array to a hex string in Java?
...ere are many unprintable elements. What I need is the exact hexcode in the form of: 3a5f771c
27 Answers
...
How to make “if not true condition”?
...ave written).
Also, looking at your code as is, your use of the $( ... ) form of cmd-substitution is to be commended, but think about what is coming out of the process. Try echo $(cat /etc/passwd | grep "sysa") to see what I mean. You can take that further by using the -c (count) option to grep an...