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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 .

Compile and install MONO on CentOS – cannot pass ‘make’

The basic instructions for installing Mono are:

tar xzvf mono-X.XX.tar.gz; cd mono-X.XX
. /configure –prefix = /usr/local;make; make install

So I downloaded the latest version from htt

October 15, 2021By Simo Centos centos, compile, installation, make, mono, passed, UnableLeave a Comment

Qt, qurl, qurlquery: Special character is encoded in the query string

I created a URL query like this:

QString normalize(QString text)
{
text.replace(“%”, “%25”);
text.replace(“@”, “%40”);
text.replace(“‘”, “%27” );
text.replace(“&”, “%26”);
text.rep

October 15, 2021By Simo Character character, code, Medium, QT, query, qurl, qurlquery, special, stringLeave a Comment

Kubeadm is highly available in Kubernetes 1.15.1

Role

Host preparation:
1. Install necessary software and upgrade all software

yum -y install vim-enhanced wget curl net-tools conntrack-tools bind-utils ipvsadm ipset
yum -y update 2.

October 15, 2021By Simo Centos 1.15.1, available, high, Kubeadm, KubernetesLeave a Comment

GRAILS – WAR packaging error: The encoded string is too long

I use grails 2.3.6 and I get the following error during execution

grails dev war Error:

|Compiling 84 GSP files for package [test]
.Error
|
WAR packaging error: encoded string too long : 79912 bytes How can I prevent this error?

I use grails 2.3.6 and I get the following error during execution

October 15, 2021By Simo Character code, error, Grails, Packaging, string, too long, WarLeave a Comment

[Data Structure] The rotation and insertion of the AVL tree

AVL tree

Left single rotation

Code implementation

void _RotateL(Node* parent) {Node* subR=parent->_right; Node* subRL=subR->_left; Node* ppNode=parent- >_parent; subR->_left=paren

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

[Data Structure] Delete, Insert, and Finding of Binary Search Tree

The meaning of a binary search tree is that the value of each left child in this binary tree is smaller than its parent node, and the value of each right child is smaller than the parent node An or

October 15, 2021By Simo Data Structure Data Structure, delete, Find, Fork, INSERT, search, Tree, twoLeave a Comment

[Data Structure] hash table

HashTable-Hash Table/Hash Table is a data structure that directly accesses the memory storage location based on the key.
It uses a key value function to map the required data to the position in t

October 15, 2021By Simo Data Structure Data Structure, Hash, tableLeave a Comment

“Data Structure” Chapter 1: Introduction Thinking

October 15, 2021By Simo Data Structure Data Structure, first chapter, Guide, Introduction, Map, thinkingLeave a Comment

Geographic Coding – Geographic Problem: How to generate. WLD files in the case of a given ground control point?

Ok, so I have a jpeg and a bunch of ground control points (x/y pixels and corresponding lat/lon references).

I I want to generate a .wld world file from the command line to accompany jpeg. My

October 15, 2021By Simo Character build, Coding, file, Geography, given, ground control, How, in the case, point, problem, WLDLeave a Comment

“Data Structure” Trust 1133 class and 1134 class studies link

Links to class 1133 and 1134 students of the letter management. There are 32 students in class 3 and 29 students in class 4, totaling 61 people. The first name of each group is the group leader.

October 15, 2021By Simo Data StructureLeave a Comment

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