Jst Brush LeetCode--string class problem-solving skills
PrologueWe put strings, arrays, regularization, sorting, and recursion into simple algorithms. In the next series, I will introduce them one by one in a series of articles.stringflip words in a stringGiven a string, you need to reverse the order of the characters of each word in the string, while still preserving the spaces and the initial orde ...
Posted by rameshfaj on Wed, 14 Dec 2022 04:41:54 +0300
Proxy mode (proxy mode)
Pattern introduction
The proxy mode, as the name implies, is to proxy some business logic
Schema UML Diagram
Code example (C#)
//Proxy for print method
class PrintProxy : Proxy, IProxy
{
public PrintProxy(IProxy p_proxy = null) : base(p_proxy) { }
public object Invoke(Delegate p_delegate, params object[] p_para ...
Posted by brandondrury on Tue, 13 Dec 2022 15:32:52 +0300
WeChat applet｜Make a chat system based on applet + C#
This article is mainly based on the small program + C# to make a chat system using WebSocket, basically realizing the chat function between the small program and the server. The customer service function that comes with the mini program can only be bound to WeChat and communicate one-on-one, and the budget for accessing the mature instant messa ...
Posted by Cory94bailly on Mon, 12 Dec 2022 23:02:01 +0300
Java-based design and implementation of springboot+vue+elementUI highway toll management system
This system is a platform designed by using the Spring Boot framework in combination with the actual situation of the user. It uses VUE technology to display all the interfaces available to users and administrators, and uses Java language technology to program the user. And the business logic of various operations performed by the administrator ...
Posted by partypete on Mon, 12 Dec 2022 22:22:41 +0300
timeout in Jasmine of JS learning
Recently, I was crashed by the asynchronous timeout in Jasmine. The specific problem is setTimeout, which sometimes causes the test case to time out, and sometimes does not wait for enough time. So I decided to study the usage of asynchronous timeout in Jasmine.
First, look at the example given by the jasmine documentation:
describe("long asy ...
Posted by shanksta13 on Mon, 12 Dec 2022 14:21:41 +0300
How SIP rookies learn SIP
Before learning SIP, we must first understand what is SIP?
SIP is an application-layer control protocol that can be used to establish, modify, and terminate multimedia sessions (or conferences) such as Internet telephony. SIP supports five aspects in establishing and maintaining the termination multimedia session protocol:User Location: Check ...
Posted by mrdeadman on Mon, 12 Dec 2022 10:47:13 +0300
Common UOS server firewall settings common commands
Table of contents
1. Firewall supported by UOS
2. Firewall Settings
3. Firewall script
4. Close the firewall (clear all rules, delete scripts, close and restart)
5. Configure black and white list
1. Firewall supported by UOS
What is the difference between iptables ufw firewalld Netfilter?
iptables ufw firewall is front-end manageme ...
Posted by 87dave87 on Sun, 11 Dec 2022 20:48:16 +0300
Experiment 8 character data and string
1121 Define an array for storing character strings
Fill in the statement defining the character array in the following program to make the program complete.
#include "stdio.h"
#include "string.h"
int main()
{ char s[80]; /*define a array named s to store string*/
strcpy(s, "abcdefghijklmn");
printf("%s", s);
return 0;
}
1122 Co ...
Posted by tijger on Sun, 11 Dec 2022 11:01:30 +0300
Virtual platform, distributed storage, high-availability k8s cluster environment construction of micro-service architecture series
1. Construction of physical machine virtual platform
1. Architecture conversion diagram from practical to required (each physical machine requires two hard disks for distributed storage and system disks, mine is an old machine 10 years ago and there is no big requirement):
2. System installation to Official website download Proxmox VE ...
Posted by chapm4 on Sun, 11 Dec 2022 10:51:34 +0300
Python crawler actual combat, requests+pyecharts module, Python realizes data visualization of new crown epidemic (with source code)
foreword
What I will introduce to you today is Python to crawl the data of the new crown epidemic and realize data visualization. Here, I will give the code to the friends who need it, and give some tips.
First of all, before crawling, we should pretend to be a browser as much as possible without being recognized as a crawler. The basic thing ...
Posted by Steffen on Sat, 10 Dec 2022 21:11:12 +0300