大约有 2,500 项符合查询结果(耗时:0.0212秒) [XML]

https://stackoverflow.com/ques... 

BigDecimal equals() versus compareTo()

...o BigDecimal objects equal only if they are equal in value and scale (thus 2.0 is not equal to 2.00 when compared by this method). In other words: equals() checks if the BigDecimal objects are exactly the same in every aspect. compareTo() "only" compares their numeric value. As to why equals() be...
https://stackoverflow.com/ques... 

What's the _ underscore representative of in Swift References?

...n allows you to call runAction without an external name. Update for Swift 2.0 Function and method now work the same way in terms of local and external argument name declaration. Functions are now called by using external parameter name by default, starting at 2nd parameter. This rule only applies...
https://stackoverflow.com/ques... 

Is 1.0 a valid output from std::generate_canonical?

...t be able to assume that generate_canonical<float,1000>(g) + 1.0f != 2.0f — because of rounding. You just can't get away from it; so why would we pretend in this single instance that you can? share | ...
https://stackoverflow.com/ques... 

How do I create a class instance from a string name in ruby?

...uts three.class # => Class three.new.say_hi # => "say hi" In ruby 2.0 and, possibly earlier releases, Object.const_get will recursively perform a lookup on a namespaces like Foo::Bar. The example above is when the namespace is known ahead of time and highlights the fact that const_get can b...
https://stackoverflow.com/ques... 

How to do version numbers? [closed]

... Semi-Semantic Versioning. Basically it builds off of Semantic Versioning 2.0 but is not quite as strict. Semi-Semantic Version Segments: <primary.release.segment>[-<pre.release.segment>][+<post.release.segment>] Primary Release Segment Format: MARKETTING.MAJOR.MINOR.PAT...
https://stackoverflow.com/ques... 

Does Python have a package/module management system?

... neglect (ie. not shipping with a package manager for 14 years from Python 2.0 to Python 3.3) did damage to the community. I describe both below. Outstanding frustrations It's important to understand that while experienced users are able to work around these frustrations, they are significant barr...
https://stackoverflow.com/ques... 

“’” showing on page instead of “ ' ”

...9-1, you would likely have seen ââ¬â¢ instead. I am using ASP.NET 2.0 with a database. This is most likely where your problem lies. You need to verify with an independent database tool what the data looks like. If the ’ character is there, then you aren't connecting to the database corre...
https://stackoverflow.com/ques... 

Call ASP.NET function from JavaScript?

...cky though... :) i. In your code file (assuming you are using C# and .NET 2.0 or later) add the following Interface to your Page class to make it look like public partial class Default : System.Web.UI.Page, IPostBackEventHandler{} ii. This should add (using Tab-Tab) this function to your code fi...
https://stackoverflow.com/ques... 

In log4j, does checking isDebugEnabled before logging improve performance?

...bugEnabled() to improve the performance. https://logging.apache.org/log4j/2.0/manual/api.html#Java_8_lambda_support_for_lazy_logging import java.util.logging.Logger; ... Logger.getLogger("hello").info(() -> "Hello " + name); ...
https://stackoverflow.com/ques... 

.gitignore exclude folder but include specific subfolder

... Commit 59856de from Karsten Blees (kblees) for Git 1.9/2.0 (Q1 2014) clarifies that case: gitignore.txt: clarify recursive nature of excluded directories An optional prefix "!" which negates the pattern; any matching file excluded by a previous pattern will become included a...