大约有 47,000 项符合查询结果(耗时:0.0431秒) [XML]

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How to add a right button to a UINavigationController?

... initWithTitle:@"Show" style:UIBarButtonItemStylePlain target:self action:@selector(refreshPropertyList:)]; self.navigationItem.rightBarButtonItem = anotherButton; // exclude the following in ARC projects... [anotherButton release]; } As to why it isn't working currently, I can't s...
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What port is a given program using? [closed]

...ool. In Process Explorer: locate the process in question, right-click and select the TCP/IP tab. It will even show you, for each socket, a stack trace representing the code that opened that socket. share | ...
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How do you access a website running on localhost from iPhone browser

...) Go to the "Info" tab Click on the drop down menu that says "Wi-Fi" and select "iPhone USB" as shown in the photo. You'll find an IP address like "xxx.xxx.xx.xx" or similar. Open Safari browser on your iPhone and enter IP_address:port_number Example: 169.254.72.86:3000 [NOTE: If the IP addr...
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Xcode Project vs. Xcode Workspace - Differences

...nd resources) actually belong to a product. When you build/run, you always select one specific target. It is likely that you have a few targets that share code and resources. These different targets can be slightly different versions of an app (iPad/iPhone, different brandings,…) or test cases th...
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What's wrong with nullable columns in composite primary keys?

...ow in a table: when a table has a primary key, you have a guranteed way to select any row from it. A unique constraint does not necessarily identify every row; it just specifies that if a row has values in its columns, then they must be unique. This is not sufficient to uniquely identify every row...
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How to succinctly write a formula with many variables from a data frame?

...kage leaps and in particular the function regsubsets() functions for model selection. As stated in the documentation: Model selection by exhaustive search, forward or backward stepwise, or sequential replacement share ...
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How to run SQL script in MySQL?

... If the purpose of writing to file is taking data dump, I guess SELECT ... INTO OUTFILE /path/to/file.csv is more efficient way. See options and syntax here - dev.mysql.com/doc/refman/5.7/en/select-into.html – Anis Feb 21 '18 at 6:43 ...
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How do you run a SQL Server query from PowerShell?

... You can use the Invoke-Sqlcmd cmdlet Invoke-Sqlcmd -Query "SELECT GETDATE() AS TimeOfQuery;" -ServerInstance "MyComputer\MyInstance" http://technet.microsoft.com/en-us/library/cc281720.aspx share |...
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Convert seconds to Hour:Minute:Second

...ed to that of the TIME data type, which is from -838:59:59 to 838:59:59 : SELECT SEC_TO_TIME(8525); # 02:22:05 See: SEC_TO_TIME Run the Demo PostgreSQL example: SELECT TO_CHAR('8525 second'::interval, 'HH24:MI:SS'); # 02:22:05 Run the Demo ...
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Google App Engine: Is it possible to do a Gql LIKE query?

...e, but you can fake a prefix match using inequality filters: db.GqlQuery("SELECT * FROM MyModel WHERE prop >= :1 AND prop < :2", "abc", u"abc" + u"\ufffd") This matches every MyModel entity with a string property prop that begins with the characters abc. The unicode ...