methods

问题 I am trying to finds a way to have access to methods and variables of a form and a class from each other using instance. Here is my code: My form code is: public partial class Form1 : Form { int var1 = 0; public Form1() { InitializeComponent(); Glob glob = new Glob(this); } private void button1_Click(object sender, EventArgs e) { } } and my class code is: public class Glob { private Form1 _form; public Glob(Form1 parent) { _form = parent; } public int Func1() { return 10; _form.var1 = 10; } }

问题 According to Apple's Objective C guide, methods with the same name all use the same selector and that they need to have the same return type as well as parameters. Then there is something about "static typed" methods being the exception. So is it that methods with the same name and return type + parameters that share a selector, but if it is only the same name but different return type and/or parameters, it will have a different selector - that if you sent such a message to it ... OK I don't

问题 I have a function which I need to put into a SQLite3 query. I have the following method: def levenshtein(a, b) case when a.empty? then b.length when b.empty? then a.length else [(a[0] == b[0] ? 0 : 1) + levenshtein(a[1..-1], b[1..-1]), 1 + levenshtein(a[1..-1], b), 1 + levenshtein(a, b[1..-1])].min end end and I want to do a query that looks something like this: @results = The_db.where('levenshtein("name", ?) < 3', '#{userinput}') What I want to find the values of name in The_db where the

问题 I was messing around in Xcode creating... something... when I needed to send a message to the MainViewController.m from the FlipsideViewController.m . Except, when I do, the ViewController I am sending the message from does not detect the method as existing, despite the fact that I put the method in MainViewController.h . This is the method: - (void)setAutosave:(BOOL)boolee { _autosave = boolee; } I have imported the MainViewController into the FlipsideViewController, but as I call it (

问题 There are several questions on Stack Overflow about a method signature in C#. Almost all solutions say that a return value and access level are not parts of a method signature. But I found on MSDN completely opposite information. Methods are declared in a class or struct by specifying the access level such as public or private, optional modifiers such as abstract or sealed, the return value, the name of the method, and any method parameters. These parts together are the signature of the

问题 I tried sub-classing the built-in int object along the lines of this example but I got a strange error. Here is the code and resulting Traceback. # Built-in namespace import __builtin__ # Extended subclass class myint(int): def in_words(self): if self: return 'one million' else: return '' # Substitute the original int with the subclass on the built-in namespace __builtin__.int = myint (I was planning to write a method to return an integer as a series of words like on a cheque). Just executing

问题 I have a php site which flows as shown below. Please note I'm leaving out most of the code (wherever theres an ellipses). index.php include template.php ... $_template = new template; $_template->load(); ... template.php class pal_template { ... public function load() { ... include example.php; ... } example.php ... global $_template; $_tempalate->foo(); ... Now, this works fine. However, I end up having a ton of files that are displayed via the $_template->load() method, and within each of

问题 I have this method which after a rake task should save my data to the model, I am trying to update 2 columns at a time, which shouldnt be a problem def update_fixtures #rake task method Fixture.destroy_all get_home_fixtures.each {|home| Fixture.create!(home_team: home )} get_away_fixtures.each {|away| Fixture.create!(away_team: away )} end In this instance only the away team will save, however if i do this def update_fixtures #rake task method Fixture.destroy_all get_away_fixtures.each {|away

问题 So I'm going through a bunch of basic programming ideas to help me get the hang of Java and I created a program that will print PI up to the 10th decimal place (and I can add more if I want). However, I decided to go an extra step and create an option to keep running the program over and over until the user tells it to stop. I created a method to return either true (run again) or false (exit program). Originally I created a scanner in the method to take user input, and the program runs fine

问题 My app seems to be completely ignoring the PUT action. I have a controller with GET, POST, PUT and DELETE actions using REST. Both PUT and DELETE methods seem to be ignored. Perhaps it's an action and method syntax issue? Anyway here is some sample code: public function init() { // Set the method for the display form to PUT $this->setMethod('PUT'); $this->setAction('/article/?update'); } From Controller: public function putAction() { echo "putAction";exit(); } In my .htaccess I also allow