Tag：Tree shape
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Android design mode-18-combination mode
1. Definitions It is also called partial overall mode; The objects are combined into a tree structure to represent the hierarchical structure of “part whole”, so that users have consistency in the use of single objects and combined objects; 2. Usage scenario: Partial and overall scenes, such as tree menu, file and folder management, etc […]
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Application project of large database: drawing word cloud map based on Chinese news word segmentation
Project: drawing word cloud based on Chinese news word segmentation 1、 Key implementation of the project: Jieba Chinese word segmentation, word segmentation result statistics, word cloud display, front-end tree structure display 2、 Key technologies of the project: JSP, servlet, MVC mode, AJAX, echarts, MySQL database, Jieba word segmentation, python. 3、 Key steps of the project: […]
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HashMap source code
HashMap is an array + linked list + red black tree structure Field properties public class HashMap<K,V> extends AbstractMap<K,V> implements Map<K,V>, Cloneable, Serializable { //This field is used for version consistency verification during serialization and deserialization private static final long serialVersionUID = 362498820763181265L; //The initial capacity of the default HashMap collection is 16 (must be […]
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Tpextbuilder – left tree navigation
Series articles： Background development framework based on (tp5.1, tp6.0) (design ideas refer to laravel admin) Tpextbuilder – hasbuilder (encapsulating page) Tpextbuilder – form Tpextbuilder – Search Tpextbuilder – table Tpextbuilder – selectpage drop-down data Tpextbuilder – left tree navigation Tpextbuilder – displays [component] – field Tpextbuilder – displays [component] – when form linkage Tpextbuilder – […]
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Tree data structure and flat data are converted to each other
Tree data structure:Tree data structure is a kind of important nonlinear data structure. The tree data structure can represent the one to many relationship between data epitopes. Among them, tree and binary tree are the most commonly used. Intuitively, tree is a hierarchical structure defined by branch relationship. Tree data structure exists widely in the […]
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PHP の sorting algorithm
1. Insert sort1) . insert sort directly $arr = [16,19,10,17,8,13,6,7,5,12]; $arr = insert_sort($arr); function insert_sort($arr) { $len=count($arr); for($i=1; $i<$len; $i++) { $tmp = $arr[$i]; for($j=$i-1; $j>=0; $j–) { if($tmp < $arr[$j]) { $arr[$j+1] = $arr[$j]; $arr[$j] = $tmp; } } } return $arr; } 2) . Hill sort $arr = [16,19,10,17,8,13,6,7,5,12]; $len = count($arr); for( […]
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Tree component in Vue + iView covers the background color of clicking and moving mouse in
Tree component in Vue + iView covers the background color of clicking and moving mouse in 1. Development environment Vue + iView2. Computer system Windows 10 professional edition3. In the process of using Vue + iView development, we will use the tree component according to the requirements. Let me share it with you, hoping to […]
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Leetcode 37
Before solving this problem, we need to know what is backtracking. Generally speaking, backtracking method is: there are many choices at present, we don’t know which one to choose, so we need to try each one. Every path you try to connect will get a tree solution. For example, in the coordinates above[0,2]Through observation, we […]
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Combination pattern of design pattern
Composite pattern Intro In combination mode, objects are combined into a tree structure to represent the “part whole” hierarchical structure. Combination mode makes users use single object and combination object consistently. Intention: to combine objects into a tree structure to represent a “part whole” hierarchy. The combination pattern makes the user’s use of single object […]
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Ant Design edited tree table
Ant Design Editable Tree Table Ant Design of React – Editable Tree TableTree table that can be edited Need in the work, but i did not find ready-made components easy to understand after Baidu and Google.Work needs, but Baidu Google did not find ready-made, available, easy to understand components. So i try to do it.So […]