Knowledge explain IO flow

Introduction of IO What is IO? The name of IO comes from the abbreviation of Input and Output, that is, Input stream and Output stream. The Input stream is used to read data from the source and the Output stream is used to write data to the target. You can learn about IO flow from the following example diagram:   ...

Posted on Tue, 07 Apr 2020 21:01:07 -0700 by digitallookout

go Language Series - From Operators to Functions

Two great tricks in programming 1. Easier than harder, breaking a complex problem into simple ones 2. Live after death operator Operators are special symbols used to represent operations, assignments, comparisons, and so on, of data. Operators are used to perform mathematical or logical operations while a program is running The built-in operato ...

Posted on Tue, 07 Apr 2020 20:57:23 -0700 by tuneout

Jquery Source Reading--Callbacks

1. Simplified allbacks //Simplified allbacks Jquery.Callbacks = function( options ){ //Processing incoming parameters options = ... //Declare some variables //Is the function in the list being callback var firing, //Parameters passed when the callback wa ...

Posted on Mon, 06 Apr 2020 09:20:14 -0700 by gilsontech

Python Chapter 12 - multiprocessing and multithreading 02 - multithreading

In the next chapter, what forms can exist between processes and threads? 1. Single process and single thread: a person eats vegetables on a table. 2. Single process and multithreading: many people eat together on the same table. 3. Multi process single thread: many people, each of them, eat at their own table. The problem of multithreading is t ...

Posted on Sun, 05 Apr 2020 23:07:11 -0700 by jOE :D

Ten classical sorting algorithms implemented by python

Ten classic sorting algorithms implemented in Python The full version will be provided at the end of the code, or you can My Github fork, if you want to see the moving picture, you can go Here Have a look; Summary: Operation mode: copy the last code and run it directly in python sort.py; The robustness of the code is not handled too much, ...

Posted on Sun, 05 Apr 2020 22:02:46 -0700 by hwmetzger

Kotlin generic strength analysis

1, What is generics 1. Generalized type or abstract type 2. An approximate implementation of duck type in static language 2, Implementation mechanism of generics 1. What is true generics? (C#) 2. What is pseudo generic? (Java,Kotlin) 3, Let's first look at the pseudo ubiquity in JAVA and Kotlin But in C ා langua ...

Posted on Sun, 05 Apr 2020 22:00:13 -0700 by danlindley

How to test Linux command run time?

Liang Xu has written a Shell script in his work. This script can obtain time from four NTP servers in turn, and then set the most reliable time to system time. Because we have a high demand for time, we need to get the right time in a short time. So we need to test the running time of this script to see how long it will take from the start to t ...

Posted on Sun, 05 Apr 2020 21:35:52 -0700 by maGGot_H

R and money game: American stocks and ARIMA model prediction

It seems that suddenly, it seems reasonable. We met with Mr. Buffett once in person, again, twice, and again, the U.S. stock has blown. In the torrent of history, we can't help asking: what about later? Will there be another company? So there is this record: using ARIMA model to predict the trend of US stocks. 1. Get Train Dataset and Test Data ...

Posted on Sun, 05 Apr 2020 18:05:45 -0700 by jib0

Handwritten quick sort QuickSort excerpt

Recently, I am writing a function that needs to calculate the median, and then I need to call the sorting function of the array. So the author's own sorting function is very curious. After checking, it is found that the self-contained sorting is actually the application's quick sorting. In order to better understand the quick sorting and unders ...

Posted on Sun, 05 Apr 2020 17:27:38 -0700 by flipis

Some small demo s in Vue Shop (background add-ons, foreground shopping carts, use of local storage)

demo. Background store, add a commodity <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <!-- Introduce vue.js --> <script src="js/vue.js"></script> </head> <body> <div id="app"></div> ...

Posted on Sun, 05 Apr 2020 15:16:10 -0700 by calavera