infinite recovery

The infinite-level tree can be said to be a significant feature of the infinite-level column, and we'll look at two different ways to do it next. I. Database design CREATE TABLE ' bg_cate ' (' cate_id ' int () unsigned not NULL auto_increment, ' cate_parentid ' int (0) unsigned DEFAULT ' + ', ' C ' Ate_name ' varchar ' NOT NULL, ' Cate_intro ' varchar ($) Default NULL, ' Cate_order ' int (in) unsigned def

In some complex systems, it is required to classify the information columns in an infinite level to enhance the flexibility of the system. So how does PHP achieve an infinite level of classification? We use recursive algorithm in this paper and combine the MySQL data table to achieve the infinite classification.Recursion, simply is a piece of program code repeate

This chapter is by far the most laborious, the second laborious is the 3rd chapter set theory8.3/8.4/8.5 back exercises did not do, feel more isolated, if you need to go back to look at it 8.1 The number of possible Exercises8.1.1If the set is limited, then the true subset cannot have the same cardinality and contradiction according to 3.6.14 (c).=An infinite set necessarily contains a subset of this subset to n double-shot. Assumed to be a:f (0), F (

iOS Development UI Chapter-Infinite Carousel (Recycle)I. Infinite Carousel1. Brief descriptionIn development, it is often necessary to automate the carousel of ads or some images, which is called infinite scrolling.　　In development, it is common practice to use a uiscrollview, add multiple ImageView on the Uiscrollview, and then set the ImageView's picture, and t

Do PHP for such a long time, found that the background management system is not a small application module is the classification of columns, the general situation of the column to be made is infinite class, that is, each column can theoretically add sub columns. In my opinion, this kind of situation is not very complicated as a whole, the only one that is relatively difficult is the query of the infinite le

When using Microsoft Exchange Server 2003, you must note the differences between recovery and recovery. Restoration refers to the restoration of databases and log files to the server. Restoration refers to the replay of transaction logs to the recovered database. There are two forms of recovery: Soft Recovery refers t

Definition and usage: is_infinite () determines whether it is an infinite value. Syntax: the is_infinite (x) parameter description x is required and specifies the value to be checked. Note: If x is positive or negative, for example, log (... definition and usage: is_infinite () determines whether it is an infinite value. Syntax:Is_infinite (x) Parameter description X is required, which specifies the value

When you learn PHP unlimited pole classification, we all feel a word "difficult" I also find it difficult, so, now are still watching, because the work to use, so, it must be studied.To the Internet a search PHP infinite classification, a lot, but a lot of is a, and, write very messy, code a lot, let us how to learn, those are not reliable, or self-ramming drum unlimited pole classification.For example, a category table: with ID, name, PID, sort on th

Problem An algorithm for infinite classification of PHP Workaround Ask for PHP Infinite classification of the algorithm, mainly the problem of sorting. How to make the level three classification under the level Two classification under the classification of Level Two (sibling), and the other is to move the parent classification, the classification of sub-categories under this category how to solve? Refe

Concept IntroductionThe combination of infinite load and waterfall flow is very novel in the development of Web front-end, and it has good performance form for Web content. Infinite loading does not load all the content at once, but instead refreshes the content by listening to the ScrollBar event. When the user drags the scroll bar down or uses the mouse wheel, the page automatically loads the rest of the

Thinkphp implements recursive loop column and follows the method of infinite pole output of tree structure, thinkphp recursion In this paper, we describe the method of thinkphp to implement recursive cyclic columns and to output infinite poles according to tree structure. Share to everyone for your reference, as follows: This uses the thinkphp recursive loop column to output the

This article is licensed to be transferred from the Phphub community Using Baum nested set model to implement infinite pole classification of Laravel model Description We usually use recursion to achieve infinite pole classification, all know that recursive efficiency is very low, the following is recommended a Laravel extension package Etrepat/baum, quickly let your data model support

Tags: Android Control If you like my blog, please pay attention to my Weibo, please click here (http://weibo.com/kifile), thank you Mark the source for reprinting. Thank you again. ######################################## ############################### Custom viewgroup supports infinite loop paging Series Custom viewgroup supports one of infinite loop pages (rewrite onlayout and dispatchdraw) Custom viewg

Often have the park friend will ask "Bo Master, there is no picture infinite scrolling demo ah?" ", Serious's picture scrolling demo I really don't have it here today. Encapsulates a picture carousel that you can use directly in your project. No other iOS pictures infinite Carousel code, nor understand their principles, I encapsulate this image today infinite car

implementation of infinite Classification tree-type Forum PHP MySQL implements infinite class classification tree display classification relationship Unlimited categories of articles Unlimited classification The realization method of infinite classification and tree-type forum PHP Infinite Class classi

Concept PHP Infinite Classification principle image a bit of metaphor is like a tree, the tree has its own roots, and then the trunk, branches in the leaves, the more forward the more dense, which is the same as the classification, the more down the classification of the column more, like everyone used by the PC preinstalled Windows operating system, You can try creating a new folder in a folder and then in this new folder, create a new one, and keep

Php simply implements an infinite classification tree list method. Php simple implementation of the infinite classification tree list method this article mainly introduces php simple implementation of the infinite classification tree list method, this example analyzes the php tree list using arrays. php simply implements an i