18 use of v-if combined with template tag in V-for
v-for cyclic number
v-for can be used to cycle numbers. For example, if you want to cycle numbers 1-99, you can write them directly as follows.
<span v-for="count in 99">{{count}},</span>
In this way, you can quickly cycle out the value of 1-99 on the page. You can see this effect in the browser.
<!DOCTYPE html>
<h ...
Posted on Wed, 01 Dec 2021 21:55:46 -0500 by afrim12
Linux file permissions (password, user, group, file permissions) --- with detailed operations
Linux file permissions
1 user information
The root user account is the administrator of the Linux system, and the UID assigned to it is 0.
Linux system will create different user accounts for various functions, and these accounts are not real users. These accounts are called system accounts and are special accounts used by various servic ...
Posted on Wed, 01 Dec 2021 18:43:05 -0500 by pink
The difference between the Linux commands su and sudo
Introduction and main usage of su command
The general usage of su is:
su <user_name>
perhaps
su - <user_name>
There is only one character difference between the two methods - there will be a big difference:
If the - parameter is added, it is a login shell method, which means switching to another user < user_ After name & ...
Posted on Wed, 01 Dec 2021 18:16:10 -0500 by beaux1
MySQL database log, backup and recovery
catalogue
Log type and function:
1.redo redo log
2.undo rollback log
3.errorlog error log
4.slow query log
5.bin log binary log
6.relay log
7.general log
Log query
Importance of data backup
Classification of database backup
Common backup methods
Actual operation
Physical cold backup and recover ...
Posted on Wed, 01 Dec 2021 15:58:59 -0500 by jamesp
17 v-for circular arrays and objects and methods of object arrays
Haste makes waste, and stability makes for victory.
When using Vue, loop is the most commonly used operation. Although we have briefly explained the use of v-for in the tutorial [introduction], it is not comprehensive. Next, we will use two articles to explain the specific use of v-for in detail.
Method of v-for circular array
<!DOCTY ...
Posted on Wed, 01 Dec 2021 12:31:19 -0500 by pages
grpc Practice II: environment construction and simple demo
Grpc Practice II: environment construction and simple demo
2.1 grpc environment installation
2.1.1 golang environment installation
All the following tutorials and codes are demonstrated by golang code, so we need to install golang environment: download address: golang official website
After installation, enter in your command line tool
go ...
Posted on Wed, 01 Dec 2021 11:22:16 -0500 by melbell
Basic usage of Docker
Basic usage of Docker
Docker architecture description
Docker uses the C/S architecture. The docker client communicates with the docker daemon, which is responsible for building, running and distributing docker containers. Docker client and daemon can run on the same system, or connect docker client to remote docker daemon. Docker clients and ...
Posted on Wed, 01 Dec 2021 09:22:10 -0500 by Jeb.
CentOS7NFS service installation and configuration
System environment: CentOS Linux release 7
1, Installation
Both nfs client and server install nfs utils package, and rpcbind is installed automatically. After installation, the nfsnobody user and group will be created. The uid and gid are 65534.
# yum -y install nfs-utils
2, Configure port
In addition to the fixed main program port 2049 a ...
Posted on Wed, 01 Dec 2021 08:55:26 -0500 by nodster
Linux basic learning notes
System bottom security control and its optimization method
1. Significance of users and their user groups
catalogue
System bottom security control and its optimization method
1. Significance of users and their user groups
1) Meaning of user existence
2) Significance of user group existence
2. User creation
3. User switching
1) User vie ...
Posted on Wed, 01 Dec 2021 08:34:09 -0500 by Ton Wibier
Linux - firewall, SELinux rules
1, Firewall firewall rules
Function of firewall: release or block some services and ports
1. Simple operation of firewall
# 1. View firewall status
systemctl status firewalld
# 2. Turn off firewall
systemctl stop firewalld
# 3. Turn on the firewall
systemctl start firewalld
2. Direct rules for firewall
# 1. View firewall released services
fi ...
Posted on Wed, 01 Dec 2021 08:31:03 -0500 by shana