Network communication & first understanding of socket
The main contents of this section are as follows:
1. Customer Short Server Architecture
2. Network communication process
3. Initial knowledge of socket
I. Client Server Architecture
ClientServer Architecture:
Client/S erver (C/S) structure is a well-known software system architecture. By assigning tasks reasonably to Client and S erver, the c ...
Posted by vishal99 on Tue, 14 May 2019 15:10:59 +0200
Detailed description of several positioning methods in android
Android Advanced Road Series:https://blog.csdn.net/chzphoenix/column/info/16488
Preface:
In android, we usually use Location Manager to get location information, where there are four provider s:
public static final String NETWORK_PROVIDER = "network";
public static final String GPS_PROVIDER = "gps";
public static final St ...
Posted by morris520 on Tue, 14 May 2019 12:18:51 +0200
Network Settings of Enterprise Servers--Network Settings under linux
Network configuration under linux
1. What is IP ADDRESS
internet protocol ADDRESS ##Network process address
ipv4 internet protocol version 4
ip It consists of 32 0,1.
11111110.11111110.11111110.11111110=254.254.254.254
2. Subnet mask
Used to divide the network area
The digital bits on the ip corresponding to the non-ze ...
Posted by kucing on Sun, 12 May 2019 06:13:21 +0200
cesium offline service settings
1. data sources
1) Satellite image texture. sxearth and other software are used to download and store data in tms format from existing network map service providers.2) DEM data. The global data available for download are SRTM V4.1, AW3D30, TanDEM-X, etc.
2. DEM data preprocessing
Cesium supports two formats of terrain: quantized-mesh data and ...
Posted by ayj on Sat, 11 May 2019 19:25:35 +0200
Summary of camera development based on ONVIF protocol
Original: http://www.cnblogs.com/big-devil/p/7625752.html
Recently, while working on the onvif protocol, I read a good article about the onvif protocol and reloaded it for recording.
1 What is the ONVIF protocol
In May 2008, the AXIS Joint Expo (BOSCH) and Sony (SONY) Corporation The three parties announced that they will wo ...
Posted by ViperG on Sat, 11 May 2019 17:19:16 +0200
Java Collection - List Introduction and Source Parsing
(Source version JDK 8)
Collection classes can be grouped into three types in a java.util package: Set, List, Map.
JAVA Collection Relationships (sketch)
(Picture Source Network)
Both List and Set collections inherit the Collection interface and are the top-level interfaces for List and Set, including the following methods:
List Collection
A L ...
Posted by Web For U on Sat, 11 May 2019 16:25:26 +0200
day11 [Network Programming](* Software Architecture CS/BS * Three Elements of Network Communication * TCP Communication * Socket Socket * ServerSocket)
day11 [Network Programming]
primary coverage
Software Architecture CS/BS
Three Elements of Network Communication
TCP communication
Socket socket
ServerSocket
Teaching objectives
Ability to distinguish UDP and TCP protocol features
Can name two common class names under TCP protocol
Can write string data transmissio ...
Posted by Deadmeat on Sat, 11 May 2019 14:23:04 +0200
Preview Tasks + Class Notes for Lesson 0418
10.19 iptables rule backup and recovery
service iptables save saves rules to/etc/sysconfig/iptables
Iptables-save > target file Save rules to another file
[root@arslinux-01 ~]# iptables-save > /tmp/ipt.txt
[root@arslinux-01 ~]# cat !$
cat /tmp/ipt.txt
# Generated by iptables-save v1.4.21 on Wed Apr 17 19:56:24 2019
*filter
:INPUT ACCEP ...
Posted by phpPunk on Sat, 11 May 2019 14:16:22 +0200
Pictures of Flutter exception handling
background
When it comes to exception handling, you may directly think that it's not a try-catch thing. As for writing an article to explain it separately?
If you think so, this article may surprise you.~
And this article focuses on the exception handling of the image.
scene
Learning to apply, there are specific application scenarios, can deep ...
Posted by powelly on Sat, 11 May 2019 09:51:38 +0200
Wu Enda Machine Learning Programming Job Summary —— Logistic Regression with Neural Network Thinking
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Summary of Wu Enda's Machine Learning Programming Jobs--Logistic Regression with Neural Network Thinking
1. Cat tutorial
1.1 Training Set and Test Set Introduction
1.2 Picture data processing
1.2.1 Dimension reduction for pictures, transpose:
1.2.2 Standardized, dividing each row of pict ...
Posted by apacheguy on Sat, 11 May 2019 07:01:18 +0200