大约有 8,100 项符合查询结果（耗时：0.0192秒） [XML]
How do I remove  from the beginning of a file?
I have a CSS file that looks fine when I open it using gedit , but when it's read by PHP (to merge all the CSS files into one), this CSS has the following characters prepended to it: 
...
How would you implement an LRU cache in Java?
Please don't say EHCache or OSCache, etc. Assume for purposes of this question that I want to implement my own using just the SDK (learning by doing). Given that the cache will be used in a multithreaded environment, which datastructures would you use? I've already implemented one using LinkedHashM...
Android - SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
I have the following layout (virtually empty):
18 Answers
18
...
How to check if a view controller is presented modally or pushed on a navigation stack?
...
Take with a grain of salt, didn't test.
- (BOOL)isModal {
if([self presentingViewController])
return YES;
if([[[self navigationController] presentingViewController] presentedViewController] == [self navigationController])
return YES;
if([[[self tabBarController] p...
AWK: Access captured group from line pattern
...
That was a stroll down memory lane...
I replaced awk by perl a long time ago.
Apparently the AWK regular expression engine does not capture its groups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
the -n flag causes perl ...
Exception handling in R [closed]
Does anyone have examples/tutorials of exception handling in R? The official documentation is very terse.
5 Answers
...
How to sort a List alphabetically using Object name field
I have a List of Objects like List<Object> p .I want to sort this list alphabetically using Object name field. Object contains 10 field and name field is one of them.
...
Determine which MySQL configuration file is being used
...tat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4227, ...}) = 0
open("/etc/mysql/my.cnf", O_RDONLY|O_LARGEFILE) = 3
So, as you can see..it lists the .cnf files, that it attempts to use and finally uses.
share
...
Underlining text in UIButton
... how to underline the title of a UIButton ? I have a UIButton of Custom type, and I want the Title to be underlined, but the Interface Builder does not provide any option to do so.
...
is there an virtual environment for node.js?
I've searched the wiki modules page, but I can't find anything similar to virtualenv (python) or rvm.
7 Answers
...