flutter develops the effect of switching video playback by sliding up and down on the dummy first page

notes preceding the text of a book or following the title of an article - Keep a sword everywhere, starting from your little accumulation, where you reach, you will strive for perfection, that is, to toss through every day. Important news Mastery points can see a summary here Flutter goes from getting started to developing an APP UI Basics Vi ...

Posted by barrywood on Sun, 01 Mar 2020 09:03:36 -0800

Flannel Network for K8S Deployment

1.flannel Download flannel download address https://github.com/coreos/flannel/releases Select the appropriate version from github and download it wget as follows: wget https://github.com/coreos/flannel/releases/download/v0.10.0/flannel-v0.10.0-linux-amd64.tar.gz Unzip with tar-zxvf flannel-v0.10.0-linux-amd64.tar.gz file af ...

Posted by AdamBrill on Sun, 01 Mar 2020 08:19:23 -0800

Algorithm analysis and practice - task 1

There are two algorithms for finding the minimum spanning tree of undirected networks: Prim and Kruskal, both of which are common methods for generating the minimum spanning tree. First, Prim algorithm: Suppose G=(V,E) is a net graph, where V is the set of vertices and E is the set of edges. Starting fr ...

Posted by Irresistable on Sun, 01 Mar 2020 05:26:03 -0800

ASP.NET watermark image upload file

In the previous article, we introduced the specified image file and added watermark to the specified file In this paper, watermark is applied to the project. When the user uploads the picture file, the corresponding watermark is added to the picture Still using a generic handler (. ashx) Users add pi ...

Posted by bradmasterx on Sat, 29 Feb 2020 23:26:40 -0800

Java NIO implementation of Reactor model

The implementation of Reactor model can be divided into the following three types: Single thread model Single Reactor multithreading model Master slave Reactor multithreading model. Single thread model The Reactor single thread model refers to that all IO operations are completed on the same thread. The responsibilities of the thread are as f ...

Posted by nightowl on Sat, 29 Feb 2020 20:44:02 -0800

Talk about class loading process, class loading mechanism and custom class loader in detail

I. Introduction When a program uses a class, if the class has not been loaded into memory, the JVM will load the class through three steps: loading, linking, and initializing. 2, Class loading, linking, initialization 1, loading Class loading refers to reading class files into memory and creating ...

Posted by rachwilbraham on Fri, 28 Feb 2020 04:47:26 -0800

Summary of Wu Enda's machine learning code and related knowledge points -- ex3 (1. Neural network)

Analysis of python matrix multiplication (multiply / maumull / * / @) 1. Load data def load_data(path,transpose=True): data=sio.loadmat(path) y=data.get("y")#before reshape:(5000, 1) y=y.reshape(y.shape[0]) X=data.get("X")#(5000,400),(400,) if transpose: #Vectorization, so ...

Posted by zdzislaw on Fri, 28 Feb 2020 03:47:24 -0800

Translation of official documents of Alertmanager

original text Abridged slightly Alarm overview Prometheus alarms are divided into two parts. Alarm rules in Prometheus server send alarms to alert manager, which processes these alarms, including silence, inhibition, aggregation, and sending notifications through email, online notification system and ...

Posted by senatedc on Thu, 27 Feb 2020 18:28:46 -0800

Data structure and algorithm series five (bidirectional linked list)

1. introduction 1.1. Why study data structure and algorithm? Some people say that data structure and algorithm, computer network, and operating system are the same, away from daily development, except for the interview may not be used in this life! Some people say that I do business development. As long as I am proficient in API, framework ...

Posted by kristoff on Wed, 26 Feb 2020 21:35:42 -0800

#Network programming -- Example of TCP ECHO echo programming

Article directory Flow protocol and packet sticking Sticky bag readn writen Client sends fixed length package code Echo client / server echosrv.c echocli.c Reference material Flow protocol and packet sticking TCP is a transport service based on byte stream. It has no boundary and can not guar ...

Posted by dethron on Tue, 25 Feb 2020 23:16:25 -0800