keyword

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . I have been learning Java from Java 2: Complete Reference, 5th Edition . I couldn't understand the exact of purpose this keyword and the concept of instance variable hiding. please explain me with example. 回答1: The exact purpose of this is to remove ambiguity from local variable from your field variables. this

问题 With syntax highlighting enabled, it's distracting while reading code like answer to this question with new used as a variable name. I'm trying to think of a reason why only a subset of keywords would be reserved and can't come up with a good one. Edit: Alternate title for this question: Why are Go's predeclared identifiers not reserved ? 回答1: That's because new and make aren't really keywords, but built-in functions. If you examine the full list of the reserved keywords, you won't see len or

问题 I have a mysql database with movies as follows: MOVIES(id,title) KEYWORDS_TABLE(id,key_id) [id is referenced to movies.id, key_id is refernced to keywords.id] KEYWORDS(id,keyword) //this doesn't matter on my example.. Basically i have movies with their titles and plot keywords for each one, i want to select all movies that have the same keywords with with a given movie id. I tried something like: SELECT key_id FROM keywords_table WHERE id=9 doing that in php and storing all the IDs in an

问题 I want to search results from "Google News" via "Google Custom Search Engine Api (CSE)" based on location/country and keyword. I tried using it by setting up a CSE which only searches inside the site "news.google.com" but then it only returns old news article clippings . Not sure how to grab the recent news articles. Also, i noticed that if we set schema type NewsArticle, its not accurate as not all news sites having this schema type of page. I knew that there is a workaround to use RSS feeds

问题 Some SPECIAL words such as Object , Array , Function , Method , Number etc are not belong to keywords in Javascrpt: Reserved Keywords in Javascript. But I have to use them carfully, they are not NORMAL words as object , array , method , number , foo ... I'd like to know how many such SPECIAL words we have? Pls give me the list. 回答1: Just to clarify, " function " is a reserved word, " Function " is a predefined object in the global scope. The special words you list (although I'm not sure about

问题 In an html template file I would like to append the revision number to links to external css and javascript files. Pretty similar to: IE6 Javascript problems with $Revision$ in the filename But as said there, this can cause problems, at least in IE6. Rather then replace (or extend) the keyword $Rev$ to $Rev: 123$ , I would prefer 123 as a result, making a link ….css?$Rev$ to ….css?123 instead of ….css?$Rev: 123$ . Is there any template somewhere for the keyword replacement that could be

问题 I want to highlight variables in a C/C++ file . such as: int num;// Highlighted num char str;// Highlighted str struct data { int year; int month; }; struct data *p,time;// Highlighted p time .......... How to highlight variables as given above （num ,str, p,time.....） I know we can modify syntax\c.vim to reach that，but how to write the syntax? Is there any other solution? 回答1: In general, you need to do two things: Generate tags using ctags ; Generate syntax file using resulting tags file.

问题 I'm going through the Python 2.7 tutorial, and I was looking at the output of the following statement: def cheeseshop(kind, *arguments, **keywords): print "-- Do you have any", kind, "?" print "-- I'm sorry, we're all out of", kind for arg in arguments: print arg print "-" * 40 keys = sorted(keywords.keys()) for kw in keys: print kw, ":", keywords[kw] So, if I call the program as such: cheeseshop("Cheddar", "No.", "Seriously?", Shopkeeper="Michael Palin", Client="John Cleese") It outputs: Do

问题 I want to add a new Column to an existing Table that has already Data in it. The Column should be NOT NULL. Because of that i want to set a Default Value. But when i do it throws the following exception: "Incorrect syntax near 'for'" ALTER TABLE Semester ADD SIDNew uniqueidentifier NOT NULL CONSTRAINT DF_SIDNew DEFAULT '00000000-0000-0000-0000-000000000000' FOR SIDNew I already had a look at How to set a default value for an existing column and Incorrect syntax near the keyword 'FOR' but none

问题 I need help how to get number of monthly searches for given keywords. I got Google Adwords API account and also money is loaded so i can make many requests. But i can't find the code from examples, how to get this info. I'm using C# .NET, and have downloaded Google.AdWords API dll's. Can you give me some simple example? 回答1: There may be a more graceful way to get keywords, but I found that I needed an ad hoc report. I could not get this to work with the AdWords .Net Client Library, but