大约有 40,000 项符合查询结果(耗时:0.0343秒) [XML]

https://stackoverflow.com/ques... 

Is there an IDictionary implementation that, on missing key, returns the default value instead of th

... Indeed, that won't be efficient at all. You could always write an extension method: public static TValue GetValueOrDefault<TKey,TValue> (this IDictionary<TKey, TValue> dictionary, TKey key) { TValue ret; // Ignore return value dic...
https://stackoverflow.com/ques... 

PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI

I am building a PHP application in CodeIgniter. CodeIgniter sends all requests to the main controller: index.php . However, I don't like to see index.php in the URI. For example, http://www.example.com/faq/whatever will route to http://www.example.com/index.php/faq/whatever . I need a reliable...
https://stackoverflow.com/ques... 

How do I find all files containing specific text on Linux?

I'm trying to find a way to scan my entire Linux system for all files containing a specific string of text. Just to clarify, I'm looking for text within the file, not in the file name. ...
https://stackoverflow.com/ques... 

apt-get for Cygwin?

... apt-cyg orks really well. Just installed rsync, openssh, mc and others. – Jako Feb 14 '13 at 0:51 9 ...
https://stackoverflow.com/ques... 

Error to run Android Studio

I have installed Android Studio and I followed all steps described here 17 Answers 17...
https://stackoverflow.com/ques... 

Is bool a native C type?

... in the current C - C99, but not in C89/90. In C99 the native type is actually called _Bool, while bool is a standard library macro defined in stdbool.h (which expectedly resolves to _Bool). Objects of type _Bool hold either 0 or 1, while true and false are also macros from stdbool.h. Note, BTW, t...
https://stackoverflow.com/ques... 

This type of CollectionView does not support changes to its SourceCollection from a thread different

...); but it is giving syntax error. Look like Send method is expecting some callback method name. I have tried various options like delegate with parameter but it is not allowing to have my custom parameter. I am very new to this kind of syntax, so it would really helpful if you can provide me synta...
https://stackoverflow.com/ques... 

What is the difference between shallow copy, deepcopy and normal assignment operation?

...ble towards the existing object. The docs explain the difference between shallow and deep copies: The difference between shallow and deep copying is only relevant for compound objects (objects that contain other objects, like lists or class instances): A shallow copy constructs a new...
https://stackoverflow.com/ques... 

Trouble comparing time with RSpec

...olution. I think it's easier and more reliable to just create the date manually: it "updates updated_at attribute" do freezed_time = Time.utc(2015, 1, 1, 12, 0, 0) #Put here any time you want Timecop.freeze(freezed_time) do patch :update @article.reload expect(@article.updated_at).t...
https://stackoverflow.com/ques... 

Tracking the script execution time in PHP

..."; echo "It spent " . rutime($ru, $rustart, "stime") . " ms in system calls\n"; Note that you don't need to calculate a difference if you are spawning a php instance for every test. share | im...