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A long long time ago to learn CodeIgniter notes, very casual, but all of their own records, I hope that the people who need help. This article uses word2013 to edit and publish Postbird | There I am, in the world more exciting! Postbird Personal website:http://www.ptbird.cnRouting 1. Change the default route file???? application/config/routes.php???? Default Controller????2, Pseudo-static???? controllers/article.php???????????? Accessing the show_article_id method???????? Localh

The first method of the Sieve of Eratosthenes is one of the most efficient ways to find all prime numbers up to N.The Sieve of Eratosthenes uses an extra O (n) memory and their runtime complexity is O (n log log n )Creates a Boolean array of length = N IsPrime, with each element initialized to true;K = 2: (n-1), if the current number k is the prime, put K^k-(n-1)/k *k of the number of pairs of mappings = false;Finally, count from 2 to n-1 IsPrime = = True.Code:public class Solution {public int c

dead Ossicini object itself, you can take this parameter to the Message object UserInfo, to achieve the value.Second, the use of the notification processFirst, we register observers where we need to receive notifications, such as:? 1234 //获取通知中心单例对象NSNotificationCenter*center=[NSNotificationCenterdefaultCenter];//添加当前类对象为一个观察者，name和object设置为nil，表示接收一切通知[centeraddObserver:selfselector:@selector(notice:)name:@"123"object:nil]; After that, send a notification messag

opposed to 5 oh )Modify point: You have a function which depends entirely on the value of the parameter and takes different behavior ( bullish is complete )Practice: Establish a separate function for each possible value of this parameterIt means that you take different actions based on the judgment of the parameters, so you can do it in several functions.And if the impact is not very large, with 5 is good, if you do need conditional judgment, then you can consider using polymorphism to eliminat

1. Python VideoB. Decorative DeviceB-1 Decorator Flow Analysis# Interpreter Step: Def outer (func): # 1. Explain outer, do not perform internal def inner (): # 3. Explanation Innerprint (' before ') # 5.1func () # 5.2 point to Old F1print (' after ') # 5.4 Return inner# 4. Returns the inner function to F1 (if inner parentheses, the inner function is executed first) # then the F1 function only wants to inner the function. If you call F1, execute the inner function, example * @ + function name #

is complete:6. Review the zoom and credential UI9. Review the home-school UINot completed:1. Authentication Server Code Research (1/3)--w2d12. Supervise the PHP background to complete the Contact list interface--w2d13. LRL complete the School and Contact test page (1/3)--w2d14. Safe Access Program Experiment (1/5)--w2d15. Certification Server Documentation (2/4)--W2D17. Push Debug--W1D18. Supervisor Audit Interface--w2d110. Friend Audit Interface--w2d111. No audit bound child process--w2d12016-

the way of apply to complete the instantiation:Instantiate the set in the same way:We can also look at the implementation of the set instantiation object:Next we cut the set in the Linux command-line terminal, first look at set:Duplicate elements are not stored in the discovery setSee below for the Declaration and use of the tuple:When a tuple is accessed, the subscript is starting from 1.For a tuple, if there are only two elements, we can create them in the following ways:Now let's look at the

SDET work turned back to the development ranks. In our daily life, we also moved from the original shared rent to the place where we rented it separately. This is also the 3rd migration in Beijing in three years. In this year, my younger sister also graduated from college, she started her career. This year, my shares were deeply covered. The most important thing is to propose to my girlfriend who has been with me for many years. This is the most important decision I made in my 08 years and will

Placing your model code into a separate project Allowing loosely-coupled access to your model from within a controller by Using Interfaces Deming basic data validation and rule violation tracking Leveraging form field to object property mapping features Using viewmodel objects to pass data to Views Using Partial views Using the ASP. net mvc ajaxhelper class to emulate the web forms updatepanel control Using stronugly-typed views Integrating jquery (and a jquery plugin called data

ESRI held 09 developer summit some time ago. Last year, I also participated in the Programming Competition. Although I didn't receive any awards, I saw a lot of things to broaden my horizons, it seems that there are not many new things this year. I am more interested in Silverlight mapcontrol. I have also seen it before and made some things based on it. Overall, ESRI's product line is complete, and the SDK also includes the current mainstream techn

the above only deployed NODE1 and NODE3 (NODE2 deleted diagram), the previous objects are unevenly distributed on the machine, now we take 2 copies (copy number) as an example, so that there are 4 virtual nodes in the entire hash ring, and the graph of the final object mapping is as follows:Based on the known object mapping relationship: Object1->node1-1,object2->node1-2,object3->node3-2,object4->node3-1. Through the introduction of virtual nodes, the distribution of objects is more balanced. S

Function call/*==========================================================Title: Judge whether a number is a prime. If 3 is a prime number, 4 is not a prime number.==========================================================*/#include #include int Sushu (int n){int i,k;k=n/2;//Control End Position!for (i=2;iif (n%i==0) break;if (i>k) return 1;else return 0;}void Main (){int n,flag=1;while (flag){printf ("Please enter judgment number: \ n");scanf ("%d", n);System ("CLS");if (Sushu (n))printf ("%d is

Yesterday saw Csdn on the home page also appeared on the Ted speech article still is very happy!Click to see a bit, found the content is rich! Thank you for the author of this article!To make it easier to access the article, put a link to the article and a link to the TED speech:Arduino founder: Open source for imaginative articlesOpen Source Imagination---ted SpeechGlossary Record: Maker creatorCreative Commons knowledge sharingSaid in the "make", immediately think of the "Love single-chip comp

Hello, everyone. You are welcome to watch the cass9.1 video course produced by Lao Wang's documents of work. I am the lecturer of this lesson for nine days. The attachment of our tutorial is shared. Please note that you are requesting measurement space. Contact information of the 9-day instructor (ask him for HD video) In this lesson, we will learn how to extract coordinates from cass9.1. Method 1 is generated with the encoding path Method 2: generate without

1. Custom method:2. Manually trigger the OnChange method with JSWhen the input box is assigned a value by JS, the onchange method of the input box is not triggered by default, which can be triggered manually with JS.Common JS Summary (supplement: 2016-09-21)

codeFile IO operations, which improve node. JS performance, can handle a large number of concurrent requests.Blocking is performed sequentially, and non-blocking is not required sequentially. ReadFile and Readfilesync.6.nodejs when writing the Chinese format, it is necessary to change the Utf-8 encoding to display the characters.7.node.js event Loop.Each API is asynchronous and runs as a separate thread, using an asynchronous function call, and handling concurrency.Event-driven model to handle

texture into 2-dimensional array coordinates -Textureregion[][] Tmp=textureregion.split (Walksheet, Walksheet.getwidth ()/frame_cols, walkSheet.getHeight ()/frame_rows); thewalkframes=NewTextureregion[frame_cols*frame_rows];//an array that stores all the pictures + intIndex=0; A for(inti = 0; i ) { the for(intj = 0; J ) { +WALKFRAMES[INDEX++]=TMP[I][J];//put a picture in an array - } $ } $walkanimation=NewAnimation (0.025f,walkframes);//to play

/*** Date format conversion yyyy-mm-dd ' T ' HH:mm:ss. Sssxxx to Yyyy-mm-dd HH:mm:ss* @throws ParseException*/public static string Dealdateformat (String olddatestr) throws parseexception{This format only supports YYYY-MM-DD ' T ' HH:mm:ss for JDK 1.7. SssxxxDateFormat df = new SimpleDateFormat ("Yyyy-mm-dd ' T ' HH:mm:ss. Sssxxx ");Date date = Df.parse (OLDDATESTR);SimpleDateFormat df1 = new SimpleDateFormat ("EEE MMM dd HH:mm:ss Z yyyy", locale.uk);Date date1 = Df1.parse (date.tostring ());Dat

will not request the corresponding page to the server, and if the server has updated the cache of the page, or removed the cache, the client has cached the page locally until its local information can only wait for the server to get the updated page. At this point, if we are using simplepagecachingfilter, because there is no expiration of the cache header information, the client will each time to the server to initiate requests, so that the server page changes when the client can immediately ge

()], since the bidirectional action involves a call to send () Code to send a value to the generator (and the value returned by the generator is sent back), the generator comes with an initialized value and counts 1 increments for each call to the generator [next ()]. The user has the option to reset this value if they really want to call send with a new value () instead of calling next (). This generator is always running, and now the yield statement must be an expression, because when you go