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Links to the original text: https://my.oschina.net/zipu888/blog/549796 Learn extjs5 with me (16 -- Custom rendering of various Grid columns) Grid columns can already be shown. Colu ...

Data interaction is an important part of front-end, static pages are the foundation, and interaction is the essence of web pages. Interaction is also divided into human-computer interaction and front-end and back-end data interaction. At this stage, most websites need front-end and back-end data interaction. How to interact? The process of inte ...

I. Annotation Development Requirements: 1. Enter the commodity query list page. 2. Click on the modification and enter the commodity modification page. The page shows the commodities to be modified (query from the database), the commodities to ...

Links to the original text: https://juejin.im/post/5d7893d56fb9a06af92bcdbe What are higher-order components? Before explaining what higher-order components are, you can first understand what higher-order functions are, because their co ...

Python Introductory Built-in Module - Serialization Module (json Module, pickle Module) 1. Serialization There are three kinds of serialization modules in Python: json module: A data transformation format followed by different languages is a special string used by different languages. (For example, a list of Python [1, 2, 3] converts json into ...

In life, sometimes we need to encrypt some important files. Python provides easy-to-use encryption libraries such as hashlib and base64. * * But for everyday learning, we can use XOR operation to implement a simple file encryption program, thus stren ...

Use of xpath selector 1. What is an xpath selector? XPath (XML Path Language) is a language for searching information in XML documents. It can be used to traverse elements and attributes in XML documents. It is more convenient, simple and acceptable ...

1. Problem Description input Table Name of an Arbitrary Data Table What page is it? Number of entries per page output JSON array string for this table (each row of data corresponds to a JSON object) application When the client (Web or mobil ...

RESTful architecture is one of the most popular Internet software architectures.It is clear, standard-compliant, easy to understand and easy to expand, so it is being used by more and more websites. 1. What is a RESTful architecture 1.1 REST Term Interpretation REST -- REpresentational State TransferFirst, the obscurity is due to the removal of ...

​ Secret 1.1 About Secret Some sensitive information such as database username and password is needed in the application startup process. If it is not safe to store directly in the container image, K8S provides the scheme of Secret. Secret stores data in ciphertext, avoiding storing sensitive information directly in configuration files. Secret ...