大约有 4,761 项符合查询结果（耗时：0.0261秒） [XML]
Why doesn't C# support the return of references?
...upports return of references, but C# doesn't. Is there a special reason? Why I can't do something like:
4 Answers
...
removeEventListener on anonymous functions in JavaScript
...hat has methods in it. These methods are put into the object inside an anonymous function. It looks like this:
13 Answers
...
Excel: last character/string match in a string
Is there an efficient way to identify the last character/string match in a string using base functions? I.e. not the last character/string of the string, but the position of a character/string's last occurrence in a string. Search and find both work left-to-right so I can't think how t...
SQL Server 2008: How to query all databases sizes?
...2008 R2, 500 databases.
What is the most efficient, easiest and 'modern' way to query all databases sizes.
14 Answers
...
Finding quaternion representing the rotation from one vector to another
I have two vectors u and v. Is there a way of finding a quaternion representing the rotation from u to v?
7 Answers
...
Why does GCC generate such radically different assembly for nearly the same C code?
While writing an optimized ftol function I found some very odd behaviour in GCC 4.6.1 . Let me show you the code first (for clarity I marked the differences):
...
Copy all the lines to clipboard
Is there any way to copy all lines from open file to clipboard in VI editor. I tried y G but it's not using clipboard to store those lines.
...
You have already activated X, but your Gemfile requires Y
...
Using bundle exec is the right way to do this.
Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile,...
Mixing a PHP variable with a string literal
Say I have a variable $test and it's defined as: $test = 'cheese'
4 Answers
4
...
How to rename a single column in a data.frame?
...s(trSamp)[2] <- "newname2"
attempts to set the second column's name. Your object only has one column, so the command throws an error. This should be sufficient:
colnames(trSamp) <- "newname2"
share
|
...