Three characteristics and five principles of object-oriented+low coupling and high cohesion This article is reproduced from the five principles of object-oriented+low coupling and high cohesion Personal understanding: at first glance, I may not understand the concept, in fact, I read similar articles many years ago, but I could not forget the method at that time, even

[TOC] Golang Code Cases This is a part of the code cases that I typed one by one in learning Golang long ago. Basically, if I typed the code in the book while reading Golang's book, I would almost get started after typing these cases General code is learned from go by example

[TOC] Data Structure and Algorithm Notes - Data Structure - Binary Search Tree Binary search tree (also called binary search tree, binary sort tree) is the most commonly used binary tree In addition to supporting fast insertion, deletion and search, the binary search tree can also

[toc] The data structure and algorithm note - data structure - binary tree tree structure are basically similar to those seen outside the tree in reality. Each element is called a node, and adjacent nodes are called parent-child relationships The node relationship of the tree structure is shown in the figure below. Node A is the node B

[TOC] Data structure and algorithm Note - Data structure - skip list - skip list - skip code - gitee skip code - github keyword skip list is a dynamic data structure based on linked list, which can be simply considered as adding multi-level indexes to the nodes of linked list Jump Table Support

[TOC] There are too many Linux common commands 2, and the new ones will be recorded here Key commands for process suspension and recovery: CTRL+Z suspends the process to the background (paused) jobs command displays the currently paused process (you can see the program number) bg% N command

[TOC] Iterm2 remembers the ssh password. With this tool, it will not use sshpass before using other ssh tools in the future. However, sshpass will directly expose the password on the screen, so it will use expect script later I Prepare Profile

The sshfs remote mount benefits command line supports mounting remote file systems on the whole platform. The remote file system must be permanently mounted. Remember that the home directory, root directory, and/Volumes are prohibited. Otherwise, even if it is mounted, there will be a lot of problems It can be directly updated under/var or/opt

[TOC] The data structure is the same as the algorithm note data structure queue keyword queue FIFO queue and stack. The linear list data structure queue with limited operation can be divided into: according to the array based sequential queue and the linked list based linked queue queue can be extended

[TOC] Data structure and algorithm note - data structure - linked list - linked list code - gitee linked list code - github keyword linked list is a data structure opposite to array, array is a memory structure with continuous subscripts, linked list is not a discontinuous structure, through storage phase

[TOC] Data Structure and Algorithm Notes - Data Structure - Array Array Code - gitee Array Code - github Keyword Array is a linear table Array is a continuous memory space and the same type of data. Basically, all languages have arrays of this data type