大约有 9,160 项符合查询结果（耗时：0.0451秒） [XML]
Groovy: what's the purpose of “def” in “def x = 0”?
...
Michael EasterMichael Easter
20k77 gold badges6868 silver badges9292 bronze badges
...
Using an RDBMS as event sourcing storage
...
Dennis TraubDennis Traub
44.4k77 gold badges7878 silver badges9898 bronze badges
...
How to sort a dataframe by multiple column(s)
...z, dd$b),],
times=1000
)
Median times:
dd[with(dd, order(-z, b)), ] 778
dd[order(-dd$z, dd$b),] 788
library(taRifx)
microbenchmark(sort(dd, f= ~-z+b ),times=1000)
Median time: 1,567
library(plyr)
microbenchmark(arrange(dd,desc(z),b),times=1000)
Median time: 862
library(doBy)
microbenc...
Regular expression for first and last name
...
CristianGuerreroCristianGuerrero
95577 silver badges1616 bronze badges
2
...
Control the size of points in an R scatterplot?
...ice - alpha adjustments, hex bins, contour plots, etc. Check out pages 72-77 of the ggplot2 book, if there's one in your library or if your library has electronic access to Springer books (I think most of the R books are in there).
– Matt Parker
Apr 5 '10 at 2...
Catch an exception thrown by an async void method
...ync void method started. - https://msdn.microsoft.com/en-us/magazine/jj991977.aspx
Note that using Wait() may cause your application to block, if .Net decides to execute your method synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty...
How I can I lazily read multiple JSON values from a file/stream in Python?
...
Thomas KThomas K
34.2k77 gold badges7676 silver badges8282 bronze badges
...
gunicorn autoreload on source change
...
hobshobs
14.1k77 gold badges7272 silver badges8484 bronze badges
...
Can I arrange repositories into folders on Github?
...Michael GregoireMichael Gregoire
40144 silver badges77 bronze badges
add a comment
|
...
Ruby: kind_of? vs. instance_of? vs. is_a?
...
Alexander - Reinstate Monica
44.2k77 gold badges7171 silver badges109109 bronze badges
answered Oct 8 '10 at 18:30
sepp2ksepp2k
...