大约有 5,213 项符合查询结果(耗时:0.0210秒) [XML]

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Store a closure as a variable in Swift

In Objective-C, you can define a block's input and output, store one of those blocks that's passed in to a method, then use that block later: ...
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Why should we typedef a struct so often in C?

I have seen many programs consisting of structures like the one below 15 Answers 15 ...
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How to convert a file into a dictionary?

I have a file comprising two columns, i.e., 11 Answers 11 ...
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Is there a way to specify how many characters of a string to print out using printf()?

Is there a way to specify how many characters of a string to print out (similar to decimal places in int s)? 8 Answers ...
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MySQL dump by query

...pxxxxxxxx mydatabase > mydumpfile.txt Update: Original post asked if he could dump from the database by query. What he asked and what he meant were different. He really wanted to just mysqldump all tables. mysqldump --tables myTable --where="id < 1000" ...
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Java generics type erasure: when and what happens?

... Type erasure applies to the use of generics. There's definitely metadata in the class file to say whether or not a method/type is generic, and what the constraints are etc. But when generics are used, they're converted into compile-time checks and ex...
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How to pass password automatically for rsync SSH command?

I need to do rsync by ssh and want to do it automatically without the need of passing password for ssh manually. 13 A...
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'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error

I have a database table containing dates 12 Answers 12 ...
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What is the C++ function to raise a number to a power?

How do I raise a number to a power? 17 Answers 17 ...
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Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)

...on. It works well on development environment, but fails on staging. I get the following error: 12 Answers ...