Generate a classification tree array using the classification list php code
// $ List is the category list array, the key is the category ID, the value is the category node object, and the pid is the parent category ID $ tree = array (); foreach ($ list as $ id => $ row) {$ pid = $ row-> pid; if ($ pid = 0) {$ tree
In fact, the classification page already contains related brands, attributes, and categories. You can simply add the corresponding functions to the category. php and templates.
1. Read all subcategories of the current category
$chlidren_category = $GLOBALS[‘db‘]->getALl(‘SELECT cat_id,cat_name FROM ‘ . $GLOBALS[‘ecs‘]->table(‘category‘) ." WHERE parent_id = ‘
Excuse me! Why can't I display only the category in this category? the small category cannot display the table type with the serial library base class serial number baseclass library base class name?
Table chiclass has the serial number of the serial Library subclass. the serial number of the childclass Library subclass name baseclass library base class.
For example, if you want to find the classification of the "rule engine", but you do not know which category to store or do not want to look for one by one,In this case, enter "rules" in the category search box and press Enter. The "Rule Engine" category can be automatically located and enabled within one second.
This function has the following functions:
1.
How to implement a category to do a title, below the title shows some field content under that category
It should be done with nested loops, but I've cycled a couple of times and it's all wrong, and it could be that the outer loop and the inner loop are repeating:
PHP Code
$result = mysql_query ("Select P_class from product group by P_class limit 40");//Get Product
' Infinite category Add new category code' OrderID The order of all columns' Rootorderid the order of the same top column' Classorderid the order of the same parent column
If Request ("action") = "Addsave" Then
Channelid=cint (Trim (Request.Form ("Channelid"))Parentclassid=trim (Request.Form ("ParentID"))Classname=trim (Request.Form ("ClassName"))Classfoldername=trim (Request.Form ("Classfoldername"))Classm
Android animation category and difference, android animation category
Android contains three types of animations: View Animation, Drawable Animation, and Property Animation (newly introduced in Android3.0 ).
View Animation:
Based on the gradient animation of the View, she only changed the rendering effect of the View, but the actual attribute value has not changed. For example, when an animation moves a bu
Ec (2); obtain the URLfunctionGetOneTypeUrl ($ typeinfos) {returnGetTypeUrl ();} of a category connection to obtain the hyperlink information functionGetOneTypeLink ($ typeinfos) {$ typepage $ this- gt; GetOneTypeUrl ($ typeinfos); $ ty script ec (2); script
// Obtain the URL of a category connectionFunction GetOneTypeUrl ($ typeinfos){Return GetTypeUrl ();}// Obtain the hyperlink information of a catego
Product classification is to put different categories in different tables or in one table. you just need to mark the classification tag, so the technical experts can ask a question ~
When the product category is put in different categories in different tables, or in a table, you only need to mark the category mark ?~
I don't know if this is a conventional approach. I used select to make a selection cl
Definition: A category is a mechanism that can add new methods to an existing class by not using inheritance
Thinking: Why does Apple add such a mechanism that can be implemented by inheritance altogether? Is the performance of the consideration or use of the convenience. For this question, thinking for a long time, personally feel that from the performance of the category is not better than inheritance, i
Action
Action constant
Corresponding string
Simple Description
Action_main
Android. Intent. Action. Main
Application Portal
Action_view
Android. Intent. Action. View
Display specified data
Action_attach_data
Android. Intent. Action. attach_data
Specify that a piece of data will be appended to other places
Action_edit
Android. Intent. Action. Edit
Edit specified data
Action_pick
Android. Intent. Action. Pick
, bundle initialextras)
The intent object contains seven attributes: component, action, category, Data, type, extra, and flag. The component is used to specify the target component to be started, extra is used to "carry" the data to be exchanged.
2. Intent attributes and intent-filter configuration
(1) component attributes
The Component Attribute of intent needs to accept a componentname object. The application can start a specifi
Taobao currently has more than 1 billion online products, how to accurately help users find the goods he wants. After years of exploration, Taobao through the establishment of a complete class of attribute system, and finally better solve the problem, today with you to talk about the category of Taobao property system. ▍ A little history and architecture
2003 Taobao just on-line, the volume of goods is very small, no classification. Later on the volum
To create a category file:Here, you must choose the class of base, as follows:No matter how perfect a class design is, it inevitably encounters an unpredictable demand, so how do you extend existing classes? Of course, inheritance is a good choice. But Objective-c provides a special way to extend the class, called catagory, to dynamically add new behavior to existing classes. This will ensure that the original base of the class, small changes can incr
K-means is also the simplest of the clustering algorithm, but the idea contained in it is not general. The first I used and implemented this algorithm is in the study of Grandpa Han's data Mining book, the book is more attention to application. After reading this handout from Andrew Ng, I had some idea of the EM thought behind K-means.Clustering belongs to unsupervised learning, the former regression, naive Bayes, SVM and so on have category label y,
No matter how perfect a class design is, it inevitably encounters an unpredictable demand, so how do you extend existing classes? Of course, inheritance is a good choice. But Objective-c provides a special way to extend the class, called catagory, to dynamically add new behavior to existing classes. This will ensure that the original base of the class, small changes can increase the required functionality. When you extend a class with category, you do
Search for a long time, did not find a good way, just to utilize this method. Maybe this is the only way.In the background of "linkage category Management" added "category group", "category name" in Chinese, "cache group name" to fill in the English alphabet.Add categories after category nameThen in content Model Manag
1 inheritance1.0 Object-oriented three basic features: 1. Encapsulation 2. Inheritance 3. Polymorphism1.1 Inheritance in life-"The Life Logic of Inheritance"A. Inheritance: Pre-grant, no need to build yourselfB. Human father class Men and women sub-categoriesJobs and Zhang Ziyi's object- The concept of inheritance: Inheritance (also known as derivation).The parent class has properties and methods that the subclass directly obtains, and this process is called inheritance.Subclasses, on the basi
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