Programmer Group

Fastjson has been a popular issue recently, but as a widely used library of Json, it is still an important choice for many developers along with Gson and Jackson. Even from a security point of view, it is necessary to understand how fastjson is used in order to replace it. This article is a simple summ ...

1: Boston house price forecast task In the previous section, we have a preliminary understanding of the basic concepts of neural networks (such as neurons, multi-layer connections, forward computing, calculation charts) and three elements of model structure (model hypothesis, evaluation function and ...

if fast or switch fast? Do you want to specify the initialization size of HashMap? How much performance can be improved after it is specified? Which serialization method takes less time? No matter what the reason is, it is necessary to evaluate the performance. In most cases, it is not enough to simply answer who is fast and who is slow. How to ...

0. Preface This is a new series namedASP.NETCore gets started in real life.This series of presentationsASP.NETCore MVC, which assists with some front-end basics (can be used to achieve what we need, not the main topic).This series will also be introduced laterASP.NETCore platform for other types of projects, and lead you to develop a website or ...

Wechat authentication authorization detailed code example background The company has an H5 page that doesn't display pictures after sharing to wechat, and the style is different from the sharing cards of other applications. Later it was found that the reason is that the unified sharing interface of ...

vue-element-admin Is an excellent front-end framework, using the latest front-end technology, built-in (Vue-i18) Internationalized Solutions, Dynamic Routing (Vue Route) , State Management (Vuex) The scheme such as these makes the whole frame structure very clear.What's more, the framework also has Type ...

Before the flow chart was drawn, tomcat was used to start the flow modeler, but in this way, the data in your system cannot be queried when assigning task users / user groups. So now we need to integrate the flowable modeler into the project. I searched a lot of articles before, but I didn't feel very clear. Maybe it was because I just got ...

In the e-commerce small program, there are many places where waterfall flow is used. Write a waterfall flow every time and repeat the logic once. As a programmer, it must be very reluctant. The form of waterfall flow is the same and the same. The difference is that the content of each module in waterfal ...

1, What is Vue cli vue cli is an official scaffold for building single page applications At present, Vuecli feels like a new project tool integrated in Idea, through which I can quickly create a project file with some basic functions. The description of scaffold is very similar. But this thing is used on the command line.   2, Install Vu ...

Author: giant brother cnblogs.com/jurendage/p/11255197.html background In the process of software development, it is inevitable to deal with all kinds of exceptions. For myself, at least half of the time is spent dealing with all kinds of exceptions, so there will be a lot of try {...} catch {...} finally {...} code blocks in the code, which ...