zen coding

day good face is also beautiful still need to modify, this time, there is a big kill device appeared-the design is limited, can not indefinitely consider the future change situation, otherwise it will fall into the mire of design can not extricate themselves.Maintain the purity of the interface1, the interface as small as possible, with a single responsibility conflict priority to consider the principle of single responsibility2, the interface to high cohesion, as far as possible to publish pub

is metadata? The data used to describe the environment and data, in layman terms, are configuration parameters that can be obtained from a file or from a database.-----> Develop Project Charter(1) Norm-setting, unified style programming-----> Package Changes(1) The package of changes contains two meanings: first, the same change is encapsulated in an interface or abstract class. Second: The different changes are encapsulated in different interfaces or abstract classes, and there should not be t

The reason is very simple: Wamp service default is not support extranet access, if the company inside and outside the network together will cause a slow or even time-out problem, directly modify the WAPM configuration file so that it can access the external network to solve the problem. Workaround/Step 1, Workaround: Open the Wamp tray icon (bottom right corner) and locate the "Config files"--"httpd.conf" file and open it. Find the "Allow from 127.0.0.1" message and modify it to " allow from all

weigh repeatedly, not only to make the structure clear, but also to achieve high cohesion and low coupling.---> Dimitri Law requires decoupling between classes, but the decoupling is limited, the principle is only for reference, if it violates this principle, the project may not fail, which requires you to use the principle of repeated measures, do not follow is not correct, strict implementation is "too bad."Iv.: Central idea(1) in a scene, the A,b,c class. Complete a goal. A relies on b,b to

Zen Cart Migration space after add to cart blank page Add to Cart appears blank page, Error log: [15-dec-2011 19:17:08] PHP warning:session_start () [Function.session-start]: Cannot send session cache Limiter-hea DERs already sent (output started at/home/yongc/public_html/store/includes/classes/class.smtp.php:2039) in/home/ yongc/public_html/store/includes/functions/sessions.php on line 114 [15-dec-2011 19:17:08] PHP Warning:cannot Modify Header infor

A farmer rescued his wife from the flood, but his children were drowned.Afterwards, people were talking about it. Some say he is right, because the child can regenerate one, but the wife cannot die and the resurrection. Some say he did wrong, because the wife can marry another, the child cannot die and resurrection.The incident passed to the local temple. A little monk in the temple heard the change to ask the farmers why they chose to save their wives. The farmer told him,"I didn't think anythi

One day, the boy was determined to leave the noisy city in search of a quiet place suitable for practice. When he was about to out of town, happened to meet Vimal.The boy of light and strict asked him: Where did you come from?"I come from the dojo." ”"Where is the dojo?""Straight Heart is the dojo." ”hear Vimal to say "straight Heart is the Dojo", Light strict lad dawu.Since the "straight Heart is the Dojo", then why should you leave the noisy city to look around for the quiet of the place? "St

- Letterprocess.fillenvelope (address); + //Pack Envelopes A Letterprocess.letterinotoenvelope (); at //Send a letter - Letterprocess.sendletter (); - } -}View Code"4" Client test1 PackageCom.yeepay.sxf.template18;2 /**3 * Client Testing4 * @authorSXF5 *6 */7 Public classClienttest {8 9 Public Static voidMain (string[] args) {Ten //Letter of Business class OneIletterprocess letterprocess=NewLetterprocessimpl (); A //Letter of Business class façade c

PackageCom.yeepay.sxf.template15;2 /**3 * Collection Interface4 * @authorSXF5 *6 * @param7 */8 Public InterfaceAggregate {9 Public voidAdd (E object);Ten Public voidRemove (E object); One PublicIterator Iterator (); A}View Code"4" Custom collection implementation1 PackageCom.yeepay.sxf.template15;2 /**3 * Custom Collections4 */5 Importjava.util.ArrayList;6 Importjava.util.List;7 8 Public classMyconnectionImplementsAggregate{9 PrivateListNewArraylist();Ten One @O

For the first time, in Quantum Buddhism, the night of meditation was estimated to be one hours,The breath disappears, can hear the sound that seems to be far away, but feel very quiet very quiet, the body expands like a balloon upwardBut because of the tension, no further, why nervous, feel that they are not pureI feel that meditation is a very cool thing, meaning that with the capital of showing off, my heart is still so not pureFrom now on I feel the original show of heart, deep in the heart,

Recently doing something with Zen Cart Mall system! See a bit of code! function Notify ($eventID, $paramArray = Array ()) { $observers = Base::getstaticobserver (); if (!is_null ($observers)) { foreach ($observers as $key = = $obs) { if ($obs [' eventID '] = = $eventID) { $obs [' Obs ']->update ($this, $eventID, $paramArray); } } } } Function Getstaticobserver () { return Base::getstaticproperty (' Observer '); } What does A mean after each funct

Zen-cart and Ecshop

obtained the object (which takes time), the second thread B is also executing, executing to (Singleton = = null) judgment, then B gets the judging condition to be true, and then continues to run. When A and B both acquire an object, a bug is created.You just need to change the code just like this.public static synchronized Singleton getSingleton(){ if(singleton == null) singleton = new Singleton(); return Singleton; }----------2、需要考虑对象的复制情况，在java中对象是默认不可复制的，若实现了Cloneable接口，并实现了

When using zen-cart to create e-commerce websites in multiple languages, garbled characters are often encountered. The following is a summary. 1. Database garbled issues. This problem may be caused by inconsistent page encoding when data is entered in the background and displayed in the foreground. For example, the background management used to input data encoding UTF-8, while the front-end display, encoding for iso-8859-7, will produce garbled. Work

1. Domain Name and host policy 1.1 domain names registered with keywords should be preferred, such as www.hrtbuy.com. Google prefers keyword domain names. 1.2 The time for purchasing a domain name should be higher than three years. The more years you purchase, the higher the weight of the domain name. 1.3 do not register a domain name that has been replaced by Google K in the site before domain name registration. 1.4 try to select virtual hosts from the countries where the target customers a

Preface "Zen of design patterns" saw 78th pages. Continue to stick to it! As a creation-type design model, the factory method model is frequently used. Therefore, the learning of this model is quite valuable. So what is the definition of this mode? What is the implementation of this mode? What is the role of this model? I will do everything possible for readers to explain clearly. Of course, if not, I can discuss it together. This kind of learning is

Input in interactive mode >>> Import this The Zen of Python, by Tim Peters Beautiful is better than uugly.Explicit is better than implicit.Simple is better than complex.Complex is better than complicated.Flat is better than nested.Sparse is better than dense.Readability counts.Special cases aren't special enough to break the rules.Although practicality beats purity.Errors shoshould never pass silently.Unless explicitly silenced.In the face of ambiguit

zhang...i am Qinyi zhang...i am Qinyi zhang...i am Qinyi zhang...i am Qinyi Zhang ...Below, see what the class diagram is, very simple, no inheritance, and so on.In the book, a design method called "Multiple cases Mode" is derived from the singleton model, that is, a class can produce multiple objects, but the number of objects is limited.It is also an example of the emperor, but there are many emperors in this example, and every minister may find a different emperor.Well, this is also easy to

Some custom constants need to be added to the database to facilitate background settings. However, it is found that the throttling control constant set in the background is still invalid and not executed as expected. Check breadcrumbClassCodeNo problem. The database configuration is normal, and the script init_db_config_read.phpIt's no problem to print the constant value directly. It's strange that other constant settings are running normally. When I was puzzled, I suddenly thought of breadcrumb

This "Zen of design patterns" was not easy to get. At that time, I had the honor to ask Qin Xiaobo in the csdn forum. Reading such a classic book cannot be like reading a novel. It is intended to be a pleasure to go around for a long time. It is more about reading and changing questions. Why should we ask every key point. Teacher Qin Xiaobo's language is sometimes humorous and sometimes important. Mr. Qin Xiaobo explained the question of "Inverted" fr