identifier

问题 Does there exist any unique identifier for files in a Git Repository? This unique identifier must be the same after some commits (modifying files), or after renaming and moving file(s). Does such a thing exist? I tried git ls-files --debug but I didn't find a unique identifier with the characteristics listed above. 回答1: The only unique identifier for a file ("blob") within a git repo is its SHA-1, but that is a checksum of the file's contents (plus the fact of it being a file/blob). It

问题 I have create a NSTableView and 2 NSTableColumn in the view. Both of the identifiers of these 2 NSTableColumn set to "Automatic" in Interface Builder. In the method: (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row I use NSLog(@"%@", [tableColumn identifier]) to check the identifier of these 2 NSTableColumn. I found the identifier of the first column is AutomaticTableColumnIdentifier.0 but the second is (null) . Is there any

问题 I have a class that creates Cars with a number of variables (year, brand, color, ... , sold (boolean), description (String), unique identifier (int) ). In part of my project, I need to create a method to clone a Car, maintaining all variables except sold (reverts to SOLD_DEFAULT) description (reverts to DESC_DEFAULT) and unique identifier (generates a new identifier). For now, my cloning code looks like this: public Automobile cloner () { Automobile Clone = new Automobile(brand,year,color,a,k

问题 I've almost got what I want after shredding up some serious Xml--but after looking at the results, I see that in one section of the parsing, I can't easily resolve this pattern of iterating through all of the line details for each of the subheaders-- so instead of writing out a total of let's say 3 records for all of the line items, I'm writing out three line items for each of the subs--of which let's say I have two. I wind up with a total of 6! :-( I've distilled the pattern as a generic

问题 I have a javascript code in the aspx file. In my script function, I am trying to read the 'SiteRootURL' value from the web.config as: var k = '<%=ConfigurationManager.AppSettings["SiteRootURL"].ToString() %>' alert(k); This is not working. When I add above code, I get blue squirkly lines at the top of my aspx page - <%@Page...%> which says - Identifier Expected' When I remove the above line, the code runs fine. Please help me. What am I doing wrong? How can I read the value form the web

问题 enter image description hereI am new to iOS Swift and trying to install this framework. I have installed this framework by cocoa pods and add this line in app delegate import IQKeyboardManagerSwift & IQKeyboardManager.sharedManager().enable = true I am now getting this error ( No such Module IQKeyboardManagerSwift) Can anyone please help me? 回答1: First check the swift and Xcode version that you are using and if that version support the pod file you are using Swift 2.2 (Xcode 7.3) Use:- pod

问题 Say I have an app named "Foo Bar", should the bundle identifier be com.tyilo.foobar or com.tyilo.FooBar ? What is the most normal and what does Apple do? 回答1: You can do any but to make life simpler and prevent common mistakes it's just easier to keep it all lower case.. But it's entirely up to you what case you use?. The only gain from using lower case is what I mentioned above 回答2: I would make it the lower case not only to make your life simpler but also because bundles are reverse domain

问题 I'm writing a tool to parse Ada source file with the grammar provided in 2005 Annex P. With following piece of code, I know ["03C0"] stands for "greek letter Pi", but is it a legal variable name? 01 package Ada.Numerics is 02 Pi : constant := 3.14159_26535_89793_23846_26433_83279_50288_41971_69399_37511; 03 ["03C0"] : constant := Pi; 04 e : constant := 2.71828_18284_59045_23536_02874_71352_66249_77572_47093_69996; 05 end Ada.Numerics; When using the grammar to parse line 03, I currently come

问题 The SVG spec refers the reader to the XML Base spec for the characters that may appear in the value of an id attribute. The XML Base spec, however, does not spell out these characters, AFAICT. Instead, it makes its recommendations in terms of "Unicode properties" ID_Start and ID_Continue . I am looking for a table (or table s ) listing explicitly those characters that have the ID_Start and/or ID_Continue properties. (In case that different applications or XML-based standards may specify their

问题 I am trying to implement the IVector interface which is part of the Microsoft.VisualC.StlClr namespace. It has a member function begin(). If I try to implement the interface then it complains about "unexpected keyword 'begin' in object expression". Is this because begin is a keyword and I can't implement a member function with that name? B. 回答1: you can try to wrap it into backticks. IVector inteface is too big to implement it as sample, so example will be smaller - the code below compiles