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Author: Han Xinzi@ShowMeAITutorial address: http://www.showmeai.tech/tutorials/56Article address: http://www.showmeai.tech/article-detail/79Notice: All Rights Reserved. Please contact the platform and the author for reprint and indicate the source1.Python dictionaryA dictionary is another variable container model and can store objects of any ty ...

Multi column document Original: Multiple columns Translated by: Xovee Translation time: February 23, 2022 introduce In LaTeX, you can easily create a two column document using the \ twocolumn command. If you need more document layouts or create multi column documents, you can use the multicol package. This article describes how to do thi ...

The origin of the Kodori tree? The original name of Kodori tree is Old Driver Tree (ODT), which is a data structure proposed by a CF competition in 2017, because the title background protagonist is "what are you doing at the end of the day? Are you free? Can you save it?" The protagonist of the data structure is cordolly, so the data ...

1. PrefaceIn the past, when watching the live broadcast of wechat video, I often clicked the like button in the lower right corner. It's quite a sense of atmosphere to watch its number slowly change from one digit to five digits. Especially when you press it for a long time, there is a feedback of mobile phone vibration, which is very touching. ...

reference material https://www.bilibili.com/video/BV1Kr4y1i7ru?p=32&spm_id_from=pageDriver 1. Constraints 1.1 general Concept: constraints are rules that act on fields in a table and are used to limit the data stored in the table.Objective: to ensure the correctness, validity and integrity of the data in the database.classification ...

Before we created the index and looked up the data, we used the default word segmentation device. The word segmentation effect is not ideal. We will divide the text field into Chinese characters one by one, and then segment the searched sentences when searching. Therefore, we need a more intelligent ik word segmentation device. 1.1. Instal ...

this in the context of function executionAs we know from the above, the general calling method is to call the method on the window.How to get this of the current function?1 change this through call/bind/applythis.myName = 'jszhang'; let foo = function() { this.myName = 'zhangsan'; } foo(); console.log(window.myName); // Output what? console.l ...

brief introductionThere are four sets in dart: Set, List, Map and queues. What should we pay attention to when using these sets? What kind of use is the best way to use it? Let's have a look.Create a collection using literalsFor the commonly used sets, map and List, they have their own parameterless constructors: factory Set() = LinkedHashSet& ...

brief introductionThere are four sets in dart: Set, List, Map and queues. What should we pay attention to when using these sets? What kind of use is the best way to use it? Let's have a look.Create a collection using literalsFor the commonly used sets, map and List, they have their own parameterless constructors: factory Set() = LinkedHashSet& ...

1, Scene source In daily development practice, it is often necessary to use tools (such as Postman and curl commands) to build http requests for development and testing. When an interface requiring token authentication is encountered, it may be necessary to log in to additional pages or request other interfaces to obtain tokens. If it is necess ...