大约有 45,000 项符合查询结果(耗时:0.1038秒) [XML]

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Using python's eval() vs. ast.literal_eval()?

...thon literal structures: strings, numbers, tuples, lists, dicts, booleans, and None. Passing __import__('os').system('rm -rf /a-path-you-really-care-about') into ast.literal_eval() will raise an error, but eval() will happily wipe your drive. Since it looks like you're only letting the user input...
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When do I need to use a semicolon vs a slash in Oracle SQL?

...nits" of work (creating a PL/SQL object, running a PL/SQL anonymous block, and executing a DML statement) can be picked out more easily by eye. Also, if you eventually move to something like Ant for deployment it will simplify the definition of targets to have a consistent statement delimiter. ...
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Most underused data visualization [closed]

Histograms and scatterplots are great methods of visualizing data and the relationship between variables, but recently I have been wondering about what visualization techniques I am missing. What do you think is the most underused type of plot? ...
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How to build Qt for Visual Studio 2010

...t with Visual Studio 2010, so after collecting all the bits of information and some trial and error, I would like to write my solution into a guide. ...
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How exactly does the callstack work?

I'm trying to get a deeper understanding of how the low level operations of programming languages work and especially how they interact with the OS/CPU. I've probably read every answer in every stack/heap related thread here on Stack Overflow, and they are all brilliant. But there is still one thin...
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What is an 'endpoint' in Flask?

... How Flask Routing Works The entire idea of Flask (and the underlying Werkzeug library) is to map URL paths to some logic that you will run (typically, the "view function"). Your basic view is defined like this: @app.route('/greeting/<name>') def give_greeting(name): ...
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What is the fastest method for selecting descendant elements in jQuery?

... Method 1 and method 2 are identical with the only difference is that method 1 needs to parse the scope passed and translate it to a call to $parent.find(".child").show();. Method 4 and Method 5 both need to parse the selector and th...
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In C++, what is a “namespace alias”?

... To possibly explain the downvotes, SO is not and never will be a replacement forv a good C++ textbook. The question you posed will be answered by any such book. And the SO "feature" of answering your own questions should not be used to provide paraphrases of such books....
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What's the difference between size_t and int in C++?

...pe size_t where I would have used a simple int . What's the difference, and why size_t should be better? 5 Answers ...
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Build an ASCII chart of the most commonly used words in a given text [closed]

... LabVIEW's very happy in its hardware control and measurement niche, but really pretty awful for string manipulation. – Joe Z Jul 4 '10 at 6:23 ...