Programmer Think

. Net/C# sub database and sub table high performance O(1) waterfall flow paging Frame introduction According to the Convention, first introduce the protagonists of this issue: ShardingCore A high-performance, lightweight solution for reading and writing separation of tables and databases under ef core, with zero dependency, zero learning cost a ...

1. Two way binding does not take effect The drop-down box has three options: A, B and C, but after selecting B, it still displays A. in fact, the value selected in v-model has become B, but the display has not changed. Cause of problem: queryParams. Attribute of v-model binding xxx and queryParams are attributes declared in data. xxx is not w ...

Continue to share dry goods in Excel, MySQL and Python. Poke the official account link stamp. The beauty of data analysis and statistics Pay attention to this official account with a little bit of things. You can also obtain four original documents: Python automation office manual, Excel PivotTable complete manual, python basic query manual and ...

ELK introduction ELK is the abbreviation of Elasticsearch+Logstash+Kibana Elasticsearch is a distributed search and analysis engine, which can be used for full-text retrieval, structured retrieval and analysis, and can combine the three. Elasticsearch is based on Lucene and is now one of the most widely used open source search engines. Logst ...

  First of all, glide, as a powerful image loading framework, has been officially used by android. Therefore, understanding the loading process and principle of glide is very important to deepen our understanding of glide. Now let's analyze it Glide Execute the process, there is a right in the head first Glide For the understanding of the over ...

preface During the development of Vue project, sometimes we need the parent component to directly access the child component, the child component to directly access the parent component, or the child component to access the root component. Sort out the following request methods: Parent component accesses child component: $children or $refsChi ...

I Course introduction Last time, we used the XML configuration file and Spring container to manage Bean objects. Finally, we gave a question: "if we have dozens of classes to create beans and adopt XML configuration, will the Spring configuration file look very bloated? How to solve this problem?", In this talk, we are going to use c ...

Technical work should be rewarded follow+Click three times (like, comment, collect) and watch again to form a good habit hutool actual combat (take you to master various tools inside) directory Purpose: File tool class (common operation of files) Usage scenario Provide common operation methods for more than 100 files, including but not li ...

catalogue preface thread Thread creation and startup Inherit Java Lang.Thread class Implement Runnable interface Implement Callable interface Static proxy Lambda expression Functional interface last preface I don't know if you have ever thought about why so many people can play together at the same time when we play the glory of t ...

Vue summary Is a progressive JavaScript framework for building user interfaces. Vue is designed to be applied layer by layer from the bottom up. Vue's core library only focuses on view layers to facilitate integration with third-party libraries or existing projects. Soc separation of concerns principle UI framework Ant design, produced by ...