大约有 31,400 项符合查询结果(耗时:0.0506秒) [XML]

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Can scrapy be used to scrape dynamic content from websites that are using AJAX?

...and am dipping my hand into building a web-scraper. It's nothing fancy at all; its only purpose is to get the data off of a betting website and have this data put into Excel. ...
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Globally override key binding in Emacs

How can I set a key binding that globally overrides and takes precedence over all other bindings for that key? I want to override all major/minor mode maps and make sure my binding is always in effect. ...
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Proper way to renew distribution certificate for iOS

My distribution certificate is expiring on June 7th, along with all of my provisioning files. How do I properly renew it? Should I revoke it now and request a new one? If I do that than will all my live apps be taken down? ...
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What does character set and collation mean exactly?

...a symbol, the number 0 is the encoding for 'A', and the combination of all four letters and their encodings is a character set. Now, suppose that we want to compare two string values, 'A' and 'B'. The simplest way to do this is to look at the encodings: 0 for 'A' and 1 for 'B'. Be...
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Active Record - Find records which were created_at before today

I want to get all records where the created_at field is less than today (a date). Is there anything like: 4 Answers ...
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How to create separate AngularJS controller files?

I have all of my AngularJS controllers in one file, controllers.js. This file is structured as follows: 6 Answers ...
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Why does the order in which libraries are linked sometimes cause errors in GCC?

...asier for the reader to see real command lines). Common files shared by all below commands $ cat a.cpp extern int a; int main() { return a; } $ cat b.cpp extern int b; int a = b; $ cat d.cpp int b; Linking to static libraries $ g++ -c b.cpp -o b.o $ ar cr libb.a b.o $ g++ -c d.cpp -o d.o ...
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Importing CSV with line breaks in Excel 2007

... @user1859022 I double that for Hungarian locale. actually any locale that uses comma as decimal separator has to use semicolon as field separator for the double-click csv open to work properly – robotik Jul 28 '16 at 11:53 ...
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Improving bulk insert performance in Entity framework [duplicate]

...ackages of 1000 items and see the changes in performance. Since during all this inserts, the context is the same and it is getting bigger, you can rebuild your context object every 1000 inserts. var yourContext = new YourContext(); I think this is the big gain. Doing this improvements in an imp...
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Is there hard evidence of the ROI of unit testing?

...nit testing sounds great to me, but I'm not sure I should spend any time really learning it unless I can convince others that is has significant value. I have to convince the other programmers and, more importantly, the bean-counters in management, that all the extra time spent learning the testing...