ARC is not used for newly created projects using cocos2d 2.x. Therefore, to save the manual memory management, it is necessary to use arc to improve coding efficiency.CodeArc conversion.
After reading some tutorials, some of them are very difficult to write. Later I found that arc conversion is too easy, as long as I use the conversion tool that comes with xcode, it can be easily solved. Let's go!
Step 1: Open the project and select edit-> refa
Object Assignment-assignment operator overloadingAn assignment operator function is a special member function defined in a classThe typical implementation method:operator= (const ClassName Right) { if ( This! = Right) {Copy the contents of right to the current object } return *this;}#include using namespacestd;classtest{intID; Public: Test (inti): ID (i) {cout "Obj_""created\n"; } Testoperator= (ConsttestRight ) { if( This= = Right ) cout"same obj!"Endl; Else{cout"Obj_""=ob
If you ' re going to use code splitting with Webpack 2, you'll need to make sure the browser have support for the ES6 Promise A Pi. This means is required to the support of an old browser, and you need to provide a polyfill. Polyfilling is relatively trivial to does with Webpack, but because Webpack itself depends on this particular polyfill, you There are to come up with another the doing so. In this lesson, we'll see how we can use the Polyfill.io s
Simple drawing Board IntroductionI. Functional structure diagramTwo. Main class design1. Overall design: In the design of simple drawing board, according to the program function classification, contains 12 files, including Simpledraw.java,menucontainer.java,drawpanel.java,drawings.java, Drawbtnlistener.java,toolbtnlistener.java,newfilelistener.java,loadfilelistener.javaSavefilelistener.java,checkboxlist.java,mousea.java,mouseb.java.2.simpledraw.javaTh
Chapter 2 of Python natural language processing exercises 12 and Chapter 2
Problem description: CMU pronunciation dictionary contains multiple pronunciations of certain words. How many different words does it contain? What is the proportion of words with multiple pronunciations in this dictionary?
Because nltk. corpus. cmudict. entries () cannot use the set () method to remove duplicate words. It can only
Synchronous asynchronous and blocking 2-Test small projects, synchronous asynchronous blocking 2-
In synchronous asynchronous and blocking 1, the advantages and disadvantages of synchronous asynchronous and non-blocking are described respectively, we use a small project to further explore their advantages and disadvantages.
1. Project Overview
Code: sync_io
Compilation: C ++, VS2010
There are two I/O items
[Python] [tips] [No. 2] Python string cross-row connection, or split into multiple rows for display, pythonno.21. Preface
It is a large string that is directly connected to a small string in a long format.
So we split it into multiple lines, that is, aesthetic, and easy to modify.
For example, the wildcard character in the file selection box:
Wildcard = "Python source code file (*. py) | *. py | Python compiling file (*. pyc) | *. pyc | text file
Python path [Chapter 2]: Web framework, python Chapter 2Web framework nature
1. As we all know, all Web applications are essentially a socket server. Your browser is actually a socket Client.
#!/usr/bin/env python# -*- coding:utf-8 -*-#-Author-Lianimport socketdef handle_request(client): buf = client.recv(1024) client.send("HTTP/1.1 200 OK\r\n\r\n".encode("utf-8")) client.send("Hello, Seven".encode("utf-8"))def main(): sock = socket.socket
Java programming ideology Reading Notes 2nd ~ Chapter 7Chapter 2 interfaces and inner and hidden classesI. Interface1. If the class implementing the interface does not implement all functions in the interface, the class must be declared as abstract class, And the unimplemented functions in the interface are abstract class in this class.
InterfaceInterface {
PublicVoidF ();
PublicVoidG ();
}
AbstractClassFirstImplementsInterface {
PublicVoidF ()
CLR. via. C # Part 2 Part 2 Section 12th generic Reading Notes (6 ),
Finally, we talked about generics. When I first saw this title, I wanted to see the author's understanding of generic, delegate, and reflection concepts. Many people's understanding of generics remains on the generic set. At the beginning, I started to understand generics more and more.
The concept of generics: generics are a special type
Cocos2dx-2.X Layout set size issue, cocos2dx-2.xlayoutCocos2dx-2.X Layout settings size issuesCocoStudio 1.1.6Cocos2dx 2.2.6Problem:There is a demand two days ago, because the number of items is not certain, you need to add the item, and then calculate the size.After adding an item to the Layout control, I call the setContentSize method becauseThe class itself is
Chapter 2 of OpenGl learning and Chapter 2 of opengl
After openGl is basically drawn, it's time to move from a plane to a three-dimensional one. Now, to draw a Golden Triangle, the main problem is the fixed-point array, GL10.GL _ TRIANGLES,
GL_TRIANGLES-this parameter means OpenGL uses three vertices to form a graph. Therefore, in the first three vertices, vertex 1, vertex
Search in two-dimensional array [Question 2], two-dimensional array search Question 2
Description:
In a two-dimensional array, each row is sorted in ascending order from left to right, and each column is sorted in ascending order from top to bottom. Complete a function, input a two-dimensional array and an integer to determine whether the array contains the integer.
Input:
The input
create t He page.Notice where the tags is and what they is doing.Some theory:the structure of an HTML pageAn HTML page was divided into major sections:
1. The head
The head (
2. The body
The
body (
You'll notice that both the head and the body sections of a Web site is marked in the HTML page with their respective t AGS: (If the body tag creates the body of an HTML page, and the head tag creat
1. Abandon Sectarianism,Don't bother with Windows or Linux (because Windows is closed and Linux is open source, so Linux is more conducive to learning)Unix or Linux, (Unix runs on a specific hardware environment, the scope is relatively small, and Linux is based on X86, a wide range of)Redhat or Debian (we refer to Linux as its kernel, not to learn Gnu/linux)2. Learning Linux is only the beginning, the key is to use the Linux platform to do something,
Problem Description:Please compile the program separately to complete the following processing:(1) Statistics on the number of occurrences of the letter ' A ';(2) The number of letters (large/lowercase) in the statistical string;(3) Count of each vowel letter(4) Count the number of occurrences of each digit character;Tip: You can define an array of int a[10], save the number of occurrences of ' 0 '-' 9 ' in a string (example A[0] representing the numb
to data on the stack (in the SS segment)Because the value of the ESP is always changing, and the value of the function parameter and the return value are computed based on the offset of the stack address, it is required to address the value of the EBP staging esp.After these two operations, the structure of the stack is as follows:We then see how the function obtains the value of the formal parameter. As mentioned earlier, the values of the parameters before the function execution have been sta
OPENCV Source Code Analysis (2): Filter Preface 2
In the last OpenCV source code Analysis of the filter preface 1, according to the Opencv_tutorials.pdf in the filter part of the use of the following 4 kinds of filter used methods. In C + + of OPENCV, these 4 functions are: Blur,gaussianblur,meidablur,bilateralfilter. Here are some of the functions in OpenCV, as well as the parameters: mean filter: Its fun
First, online Help: Man page and Info page1.man (Manual: Operating Instructions) pageI want to view the calendar, so I enter the man calEffectIn the Figure Cal (1), the meanings of the numbers in the different instructions are different, such as the following three more important:
Code
Representative content
1
Commands or executables that a user can manipulate in a shell environment
5
The configuration file or the format of some files
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