大约有 46,000 项符合查询结果(耗时:0.0600秒) [XML]

https://stackoverflow.com/ques... 

How to find out which fonts are referenced and which are embedded in a PDF document

...I'd like to inspect, which fonts are actually embedded in the pdf document and which are only referenced. Is there an easy (and cheap as in free) way to do that? ...
https://stackoverflow.com/ques... 

Is there an easy way to check the .NET Framework version?

... } } } } } } For .NET 4.5 and later // Checking the version using >= will enable forward compatibility, // however you should always compile your code on newer versions of // the framework to ensure your app works the same. private static string ...
https://stackoverflow.com/ques... 

In Python, what is the difference between “.append()” and “+= []”?

...d will add one item to the list, while += will copy all elements of right-hand-side list into the left-hand-side list. Update: perf analysis Comparing bytecodes we can assume that append version wastes cycles in LOAD_ATTR + CALL_FUNCTION, and += version -- in BUILD_LIST. Apparently BUILD_LIST outw...
https://stackoverflow.com/ques... 

How do I ZIP a file in C#, using no 3rd-party APIs?

... Are you using .NET 3.5? You could use the ZipPackage class and related classes. Its more than just zipping up a file list because it wants a MIME type for each file you add. It might do what you want. I'm currently using these classes for a similar problem to archive several relat...
https://stackoverflow.com/ques... 

Redirecting to URL in Flask

I'm new to Python and Flask and I'm trying to do the equivalent of Response.redirect as in C# - ie: redirect to a specific URL - how do I go about this? ...
https://stackoverflow.com/ques... 

How to reuse an ostringstream?

I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state? ...
https://stackoverflow.com/ques... 

What does ~~ (“double tilde”) do in Javascript?

I was checking out an online game physics library today and came across the ~~ operator. I know a single ~ is a bitwise NOT, would that make ~~ a NOT of a NOT, which would give back the same value, wouldn't it? ...
https://stackoverflow.com/ques... 

MySQL, Check if a column exists in a table with SQL

... query that will check if a specific table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception. ...
https://stackoverflow.com/ques... 

How to make CSS3 rounded corners hide overflow in Chrome/Opera

...w: hidden works in simple situations, but breaks in webkit based browsers and Opera when the parent is positioned relatively or absolutely. ...
https://stackoverflow.com/ques... 

How to linebreak an svg text within javascript?

...cur, you can break your text into multiple <tspan>s, each with x="0" and dy="1.4em" to simulate actual lines of text. For example: <g transform="translate(123 456)"><!-- replace with your target upper left corner coordinates --> <text x="0" y="0"> <tspan x="0" dy="1...