大约有 31,500 项符合查询结果(耗时:0.0511秒) [XML]

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Setting an environment variable before a command in Bash is not working for the second command in a

In a given shell, normally I'd set a variable or variables and then run a command. Recently I learned about the concept of prepending a variable definition to a command: ...
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Select row with most recent date per user

... wow! not only did this work, i was allowed to create a view with this query even though it contains subqueries. before, when i tried to create a view containing subqueries, it didn't let me. are there rules as to why this is allowed but another one isn't? ...
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How does a garbage collector avoid an infinite loop here?

...wo seconds, the CLR just kills the process - no more Finalize methods are called. Also, if it takes more then 40 seconds to call all objects' Finalize methods, again, the CLR just kills the process. Also, as Servy mentions, it has its own thread. ...
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How to extract numbers from a string in Python?

I would extract all the numbers contained in a string. Which is the better suited for the purpose, regular expressions or the isdigit() method? ...
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How to manually send HTTP POST requests from Firefox or Chrome browser?

...ome URLs on a web application I'm working on. For that I would like to manually create HTTP POST requests (meaning I can add whatever parameters I like). ...
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How to remove unused imports from Eclipse

Is there any way to automatically remove all unused imports (signaled with a warning) of a project with Eclipse IDE? 10 Ans...
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JavaScript dependency management: npm vs. bower vs. volo [closed]

...s the difference between npm and bower is: npm manages JavaScript modules called packages and Bower manages front-end components (i.e. css, html, and JavaScript) called components. npm is also used to install bower. Here is an expansive article on npm and bower (does not cover volo) it goes into ple...
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How do I find out what version of WordPress is running?

... Excellent tip that allows for quickly checking without looking up credentials for any one of 100 client accounts and log in to the FTP! An even quicker way is to "Click the W logo" as per the below answer - again, if you have credentials at the...
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Moving project to another folder in Eclipse

I generally have my working projects sitting on folders on my Desktop. When they are completed I just move them to a c:\dev\ . The thing is I'm doing it in a rather archaic way. ...
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Hand Coded GUI Versus Qt Designer GUI [closed]

... compile into your application. We started using for that purpose but with all generated code, once you edit it, you can no longer go back and regenerate it without losing your edits. We ended up just taking the generated code and doing everything by hand henceforth. Qt4 Qt4 has improved on Design...