大约有 40,000 项符合查询结果(耗时:0.0447秒) [XML]

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How do I copy items from list to list without foreach?

...eetening things up a bit from posts above: ( thanks everyone :) /* Where __strBuf is a string list used as a dumping ground for data */ public List < string > pullStrLst( ) { List < string > lst; lst = __strBuf.GetRange( 0, __strBuf.Count ); __strBuf.Clear( ); ...
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How to use the IEqualityComparer

... implement.1 In your code, the solution is to forward GetHashCode to Class_reglement.Numf.GetHashCode and implement it appropriately there. Apart from that, your Equals method is full of unnecessary code. It could be rewritten as follows (same semantics, ¼ of the code, more readable): public boo...
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How to print the full traceback without halting the program?

...ve already pointed out the traceback module. Please notice that with print_exc, in some corner cases, you will not obtain what you would expect. In Python 2.x: import traceback try: raise TypeError("Oups!") except Exception, err: try: raise TypeError("Again !?!") except: ...
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Naming convention - underscore in C++ and C# variables

It's common to see a _var variable name in a class field. What does the underscore mean? Is there a reference for all these special naming conventions? ...
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Flex-box: Align last row to grid

...p:wrap; } .grid::after{ content: ''; width: 10em // Same width of .grid__element } .grid__element{ width:10em; } With the HTML like this: <div class=grid"> <div class="grid__element"></div> <div class="grid__element"></div> <div class="grid__elemen...
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powershell - extract file name and extension

... select -ExpandProperty value $b | % {"File name:{0} - Extension:{1}" -f $_.substring(0, $_.lastindexof('.')) , $_.substring($_.lastindexof('.'), ($_.length - $_.lastindexof('.'))) } If is a file you can use something like this based on your needs: $a = dir .\my.file.xlsx # or $a = get-item c:\m...
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How to search a specific value in all tables (PostgreSQL)?

... How about dumping the contents of the database, then using grep? $ pg_dump --data-only --inserts -U postgres your-db-name > a.tmp $ grep United a.tmp INSERT INTO countries VALUES ('US', 'United States'); INSERT INTO countries VALUES ('GB', 'United Kingdom'); The same utility, pg_dump, can...
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What is the command to list the available avdnames

...ators: emulator @name-of-your-emulator where emulator is under: ${ANDROID_SDK}/tools/emulator – Dhiraj Himani Jun 16 '17 at 11:27 ...
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What's the best UI for entering date of birth? [closed]

...birthdate. A text box with an example is clear, quick and easy to enter: _______ |_______| (example: 31/3/1970) This should support flexible formatting such as 1/1/1970 or 20/07/70. If you have to support different cultures with different date conventions (e.g. US and UK) then this could be err...
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Double Negation in C++

...ernel). For GCC, they're implemented as follows: #define likely(cond) (__builtin_expect(!!(cond), 1)) #define unlikely(cond) (__builtin_expect(!!(cond), 0)) Why do they have to do this? GCC's __builtin_expect treats its parameters as long and not bool, so there needs to be some form of conver...