大约有 42,000 项符合查询结果(耗时:0.0654秒) [XML]

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Running shell command and capturing the output

I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line. ...
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How to share Eclipse configuration over different workspaces

...es. (like at home, laptop, in office, etc.). How could I share the Eclipse and project configuration pragmatically between multiple computers? Should I version control them, or is there any easier way to do this? ...
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Regex to check whether a string contains only numbers [duplicate]

I get false on both "123" and "123f" . I would like to check if the hash only contains numbers. Did I miss something? 21...
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.NET WPF Remember window size between sessions

...ifferent type or structure will be needed. Initialise the first two to 0 and the second two to the default size of your application, and the last one to false. Create a Window_OnSourceInitialized event handler and add the following: this.Top = Properties.Settings.Default.Top; this.Left = Propert...
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How to fix committing to the wrong Git branch?

...mit to the wrong branch. How do I undo the last commit in my master branch and then take those same changes and get them into my upgrade branch? ...
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What does the “__block” keyword mean?

...eated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these variables don't show outside the block. When they are marked with __block, the modifications done inside the block are also visib...
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Retrieve a Fragment from a ViewPager

...ll no longer work. What about this solution, overriding instantiateItem() and destroyItem() of your Fragment(State)PagerAdapter: public class MyPagerAdapter extends FragmentStatePagerAdapter { SparseArray<Fragment> registeredFragments = new SparseArray<Fragment>(); public MyPa...
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Why do you create a View in a database?

When and Why does some one decide that they need to create a View in their database? Why not just run a normal stored procedure or select? ...
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Setting default values for columns in JPA

Is it possible to set a default value for columns in JPA, and if, how is it done using annotations? 18 Answers ...
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Practical uses for AtomicInteger

I sort of understand that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though? ...