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Category: OS

Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .

[Data Structure] AVL Tree

AVL tree is a balanced search binary tree, which satisfies the nature of search tree (see article on binary search tree, link : Binary search tree), and meets the balance tree

Nature (left an

October 15, 2021By Simo Data Structure AVL, Data Structure, TreeLeave a Comment

Building a Git server based on CENTOS 7

Git is a free and open source distributed version control system for agile and efficient processing of any small or large project.

⒈Install dependent libraries and compilation tools

1.

October 15, 2021By Simo Centos Based on, centos, construction, git, serverLeave a Comment

Why is the shared library path hard coded in executable?

I recently got a binary test. When I checked it with objdump, I found that it contains a hard-coded library path. Why do I need to hard-code such a path? Shouldn’t you get the path from the SHELL e

October 15, 2021By Simo Character encoding, executable, file, hard, Medium, path, shared library, whyLeave a Comment

[Data Structure] Basic Operations on Single List

1. Initialization

//Create an empty single-linked list LinkList InitiateLinkList( ){ LinkList head; //Head pointer head = malloc(sizeof(node)); //Build a node dynamically, which is the head n

October 15, 2021By Simo Data Structure Basic, Calculation, Data Structure, single-strand, tableLeave a Comment

Several methods of modifying computer console coding

In program development, our unified encoding is UTF-8, which is very important, but we still encounter many garbled problems. There are many reasons for garbled codes, so I won’t be here for the ti

October 15, 2021By Simo Character Coding, computers, consisters, methods, modify, severalLeave a Comment

[Data Structure] Stack Surface Test – A Array Realizing Two Stacks

One ​​array to realize two stacks, there are several ways:

1. The odd-numbered positions of the array store the elements of one stack, and the even-numbered positions store the elements of th

October 15, 2021By Simo Data Structure array, Data Structure, Implementation, interview, one, Question, stack, twoLeave a Comment

Prometheus + grafana + alertmanager mailbox alarm

Environment System: CentOS 7
Software: alertmanager-0.18.0.linux-amd64.tar.gz

Download the binary package
Address: https://prometheus.io/download/

Installation

# tar -xzvf alert

October 15, 2021By Simo Centos Alarm, AlertManager, grafana, Mailbox, Prometheus, Prometheus + Grafana + AlertManagerLeave a Comment

Code decoding byte

I have an embedded device that sends UTC date in this format (date is 4 bytes):

buffer.push_back((BYTE)(time_utc & 0x000000FF));
buffer.push_back((BYTE)((time_utc & 0x0000FF00) >> 8));
buff

October 15, 2021By Simo Character byte, Coding, DecodingLeave a Comment

ImageNew Tobase64 encoding problem, ColdFusion quality decline

I have been experiencing problems with toBase64(). I hope someone can tell me why CF toBase64() seems to be missing something, for example in my case it reduces the quality of the image .

I h

October 15, 2021By Simo Character Coding, ColdFusion, Decline, ImageNew, quality, Question, Tobase, Tobase64Leave a Comment

Unicode – F # – card is not suitable for display in the console

I am using f# to make a console-based card game, and I am trying to use unicode chars to display card suits. The mapping suit-to-char represents the following function:

let suitSymbol =

October 15, 2021By Simo Character card, control, discomfort, display, in, station, UnicodeLeave a Comment

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