大约有 47,000 项符合查询结果(耗时:0.0403秒) [XML]

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Why does modern Perl avoid UTF-8 by default?

...CODE envariable to AS. This makes all Perl scripts decode @ARGV as UTF‑8 strings, and sets the encoding of all three of stdin, stdout, and stderr to UTF‑8. Both these are global effects, not lexical ones. At the top of your source file (program, module, library, dohickey), prominently assert tha...
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Debugging Package Manager Console Update-Database Seed Method

...figuration<TContext>(); Database.Delete("TestDatabaseNameOrConnectionString"); var databaseMigrator = new DbMigrator(configuration); databaseMigrator.Update(); Database.Delete("TestDatabaseNameOrConnectionString"); But be careful not to run this against your development database! ...
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]

I'm getting a datetime string in a format like "2009-05-28T16:15:00" (this is ISO 8601, I believe). One hackish option seems to be to parse the string using time.strptime and passing the first six elements of the tuple into the datetime constructor, like: ...
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How to remove non-alphanumeric characters?

I need to remove all characters from a string which aren't in a-z A-Z 0-9 set or are not spaces. 9 Answers ...
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Is there shorthand for returning a default value if None in Python? [duplicate]

... I can say x ?? "" , which will give me x if x is not null, and the empty string if x is null. I've found it useful for working with databases. ...
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LINQ Select Distinct with Anonymous Types

... Extensions cannot handle of type object and object. If the both object is string it still return the duplicate rows. Try the FirstName is typeof object and assign with the same string there. – CallMeLaNN May 26 '11 at 5:50 ...
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Finish all previous activities

...eturn you to home screen finishing all the other activites. You can add an extra in the intent and read that in the home screen activity and finish it also (maybe launch login screen again from there or something). I am not sure but you can also try going to login with this flag. I don't know how t...
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PHP best way to MD5 multi-dimensional array?

...one performs faster than serialize, and (2) json_encode produces a smaller string and therefore less for md5 to handle. Edit: Here is evidence to support this claim: <?php //this is the array I'm using -- it's multidimensional. $array = unserialize('a:6:{i:0;a:0:{}i:1;a:3:{i:0;a:0:{}i:1;a:0:{}i...
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How to add minutes to my Date

..., i tried this , date is coming correctly , but when i try to change it as string , it gives me the same wrong result String newTime= df.format(afterAddingTenMins); it gives me 2011-50-07 17:50 , I have to convert it in String, any suggestion – junaidp ...
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Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli

...done In this example, I am assuming that all your image files contain the string IMG and you want to replace IMG with VACATION. The shell automatically evaluates *.jpg to all the matching files. The second argument of mv (the new name of the file) is the output of the sed command that replaces IMG ...