大约有 31,100 项符合查询结果(耗时:0.0415秒) [XML]

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What's the best way of scraping data from a website? [closed]

...ms crawling and scraping basically interchangeable here. This is a copy of my answer to your Quora question, it's pretty long. Tools Get very familiar with either Firebug or Chrome dev tools depending on your preferred browser. This will be absolutely necessary as you browse the site you are pulli...
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Hand Coded GUI Versus Qt Designer GUI [closed]

...me the items in Designer and stick with the names to not break your code. My assessment is that it's nowhere near as useful as Interface Builder on Mac OS X, but at this point, I could see using the Designer files directly in a program. We haven't moved back to Designer since Qt3, but still use it...
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Catch a thread's exception in the caller thread in Python

...equires only changing from Thread to ProagatingThread. And 4 space tabs so my copy/paste was trivial :-) ... the only improvement I'd suggest is using six.raise_from() so that you get a nice nested set of stack traces, instead of just the stack for the site of the reraise. – ag...
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NumPy: function for simultaneous max() and min()

... as of numpy 1.8 min and max are vectorized on amd64 platforms,on my core2duo numpy performs as well as this fortran code. But a single pass would be advantageous if the array exceed the size of the larger cpu caches. – jtaylor Mar 7 '14 at 13:58 ...
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Viewing unpushed Git commits

...d to the remote repository? Occasionally, git status will print out that my branch is X commits ahead of origin/master , but not always. ...
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Reading 64bit Registry from a 32bit application

... access the 64-bit registry on Machine B. Before I passed that parameter, my program was reading the 32-bit after OpenRemoteBaseKey, and did not find the key I was after. Note: In my test, the remote machine was actually my machine, but I accessed it via OpenRemoteBaseKey, just as I would for a d...
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How to get package name from anywhere?

... My understanding is that final makes it immutable, initialize-able only in a constructor and only once. onCreate() is not a constructor. Please correct if I am mistaken. – ef2011 Jul 6 '...
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How to declare a type as nullable in TypeScript?

... Union type is in my mind best option in this case: interface Employee{ id: number; name: string; salary: number | null; } // Both cases are valid let employe1: Employee = { id: 1, name: 'John', salary: 100 }; let employe2: Employee...
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Custom toast on Android: a simple example

... My custom toast wasn't showing up because I was using the new Constraint Layout as my custom toast's rootview. Once I changed to Linear Layout, everything worked perfectly. So be warned... – Charles Wo...
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Android, How to limit width of TextView (and add three dots at the end of text)?

... (...) at the end of string. This one shows the text has continue. This is my XML but there is no dots although it limit my text. ...