大约有 20,357 项符合查询结果(耗时:0.0347秒) [XML]

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Convert number strings with commas in pandas DataFrame to float

I have a DataFrame that contains numbers as strings with commas for the thousands marker. I need to convert them to floats. ...
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How to set breakpoints on future shared libraries with a command flag

I'm trying to automate a gdb session using the --command flag. I'm trying to set a breakpoint on a function in a shared library (the Unix equivalent of a DLL) . My cmds.gdb looks like this: ...
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POST data in JSON format

I have some data that I need to convert to JSON format and then POST it with a JavaScript function. 4 Answers ...
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Select a Dictionary with LINQ

I have used the "select" keyword and extension method to return an IEnumerable<T> with LINQ, but I have a need to return a generic Dictionary<T1, T2> and can't figure it out. The example I learned this from used something in a form similar to the following: ...
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How to create function that returns nothing

I want to write a function with pl/pgsql . I'm using PostgresEnterprise Manager v3 and using shell to make a function, but in the shell I must define return type. If I don't define the return type, I'm not able to create a function. ...
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finding the type of an element using jQuery

In jQuery, if I have a reference to an element, how can I determine what kind of element it is, for example, an input or an dropdown? Is there any way to find out? ...
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How to define a reply-to address?

How can I define a reply-to address different than the :from one? Is that even possible? 2 Answers ...
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Using Server.MapPath() inside a static field in ASP.NET MVC

I'm building an ASP.NET MVC site where I'm using Lucene.Net for search queries. I asked a question here about how to properly structure Lucene.Net usage in an ASP.NET MVC application and was told that the best method is to declare the my IndexWriter as public static , so that it can be re-used....
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Select all child elements recursively in CSS

How can you select all child elements recursively? 2 Answers 2 ...
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Re-raise exception with a different type and message, preserving existing information

I'm writing a module and want to have a unified exception hierarchy for the exceptions that it can raise (e.g. inheriting from a FooError abstract class for all the foo module's specific exceptions). This allows users of the module to catch those particular exceptions and handle them distinctly,...