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  1. Before using the methods of arrays, you need to create arrays, which can be created in the following ways: Literal Quantity (json) var arr1 = []; //Create an empty array var arr2 = [5]; //Create an array with a single element var arr3 = [5,6,7]; //Create an array with multiple element ...

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Crawling the data information about python position in the pull net, and storing the crawling data into various csv files, then cleaning the data of the relevant fields in the csv file, and making further analysis on the data visualization, including histogram display, histogram display, word cloud display, etc. according to the visualization d ...

Table of contents 01. Summary of problems encountered 02. About layout settings 03. Basic grammar summary 04. About interaction 06. About returning data 07. About network requests 08. About page refresh 09. Notes 10. To be solved and considered 01. Summary of problems encountered In my page, there is a problem defining the class of view as l ...

catalog Exception handling of Flask development skills 1. Flash built in exception handling 2. HTTPException class analysis 3. Custom exception handling class 4. Easily define your own error class 5. Precautions I usually use in the development, or learn some of the flask development skills, need to have a more solid basis for flask. 1. F ...

In the early stage, due to the small business volume of the production environment. So logs are commit ted one by one. There was no problem with the operation. Later, with the expansion of business concurrency, the log writing frequently deals with the database, resulting in the database connection pool often occupied, until the program crashes ...

docker start stop sudo systemctl start docker.service sudo systemctl stop docker.service sudo systemctl restart docker.service sudo systemctl status docker.service sudo systemctl enable docker sudo docker ps -a ## <-- List existing images ## sudo docker stop 17dd4ab4cda2 ##<-- 17dd4ab4cda2 by container id ## sudo docker rm 17dd4ab4cda ...

1. Introduction This full introductionAsp.netHow the core web api is deployed in a docker container and accesses web api services externally.After you have finished writing the dockerfile, you can create a mirror with the docker [image] build command. The basic format is: docker build [options] path | url | - The command reads the dickerfile ...

Ancient poetry is the treasure of Chinese culture. I remember that when I was an Exchange Student in South Korea, I saw that they learned our ancient poetry, including Chinese and translation versions. I was proud of myself and even remembered some familiar poems at some time. In this paper, we will generate some ancient poetry for us through i ...

Details of XUtils 1, What are XUtils? brief introduction Configuration before use 2, XUtils loading pictures ImageOption Load network picture Load Android resource pictures Load sd card picture 3, XUtils request network RequestParams get request post request 4, Use summary ...