大约有 15,600 项符合查询结果(耗时:0.0371秒) [XML]

https://stackoverflow.com/ques... 

Controlling number of decimal digits in print output in R

...-15) y1 <- rnorm(50, 1 + 1e-15, 1e-15) t.test(x1, y1) #Should throw an error x2 <- rnorm(50, 0, 1e-15) y2 <- rnorm(50, 1e-15, 1e-15) t.test(x2, y2) #ok In the first case, differences between numbers only occur after many significant figures, so the data are "nearly constant". In the s...
https://stackoverflow.com/ques... 

Load image from resources area of project in C#

... @SriHarshaChilakapati typeof(this); doesn't compile. You get Error 1 Type expected – John Gibb Jan 7 '14 at 16:32  |  show 1 mor...
https://stackoverflow.com/ques... 

String comparison in Python: is vs. == [duplicate]

... should never be read to mean if x==y then x is y It is a logical error on the part of the reader to assume that the converse of a logic statement is true. See http://en.wikipedia.org/wiki/Converse_(logic) share ...
https://stackoverflow.com/ques... 

Int division: Why is the result of 1/3 == 0?

...wo shorts will not be that easy : short s = 1; s = s + s; <- Compiling error //possible loss of precision // required: short // found: int This will required a casting with a possible loss of precision. The same is true for the floating point operators If at least one of the operand...
https://stackoverflow.com/ques... 

How to convert a string from uppercase to lowercase in Bash? [duplicate]

...efore variable name (${$y,,} instead of ${y,,}), which results in the same error as when bash version is too low (you can check it with 'bash --version'). – BartekM Oct 17 '16 at 12:15 ...
https://stackoverflow.com/ques... 

Reusing output from last command in Bash

...nside is that it will execute a command twice: once to redirect output and error to /tmp/out.log and once normally. Probably there is some way to prevent this behavior as well. share | improve this ...
https://stackoverflow.com/ques... 

How do I create a file AND any folders, if the folders don't exist?

...s recursively and if the directory already exist it will return without an error. If there happened to be a file Foo at C:\Temp\Bar\Foo an exception will be thrown. share | improve this answer ...
https://stackoverflow.com/ques... 

Including an anchor tag in an ASP.NET MVC Html.ActionLink

...r name is incorrect, run-time exceptions will occur, rather than a compile errors. – R. Schreurs Jan 25 '13 at 12:26 1 ...
https://stackoverflow.com/ques... 

How to remove non-alphanumeric characters?

... There's still an error in this, the character classes need to be terminated with ':]' so the correct line would be: preg_replace("/[^[:alnum:][:space:]]/ui", '', $string); – h00ligan Nov 17 '14 at 14:03...
https://stackoverflow.com/ques... 

Get Substring - everything before certain char

... Please do them a favor and add error checking as well assuming he plans to make a function out of this :) – Josh Dec 7 '09 at 2:51 ...