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Usage scenario: We want to build a complex product, such as a car and a mobile phone, which are made up of many parts. At this time, we need to use our builder mode to produce each part separately and then assemble it~~ Below, I will take the production process of a mobile phone as an example. Her ...

1.Interface Mock The server is turned on, as long as all static resource files such as pictures are placed in thepublicUnder the folder, you can directly access the Mock The server localhost:3000Find the corresponding path http://localhost:3000/images/0/a.jpg(api/public/images/0/a.jpg) http://localhost ...

1 Question After Android 8.0, we turned on hotspots in the following way, but when we jump to the page, the hotspots will be disconnected and the phones will not be able to transfer files to each other. Permission Instructions: Android 8.0 requires location and GPS permissions, while hot spots on mobile phones cannot be turned on. if (Build. ...

Due to business requirements, two physical cameras need to be opened at the same time. According to Camera2 api, SdkVersion 28 supports this function. But I have to say that api documents are not friendly, or that I am really a dish. Let's take a picture of the structure of Camera2, which I don't kn ...

Preface In this chapter, I mainly use this series of C# basic chapters to sort out the past learning notes, summarize and summarize them, and to understand them more thoroughly. In the previous article, we learned more about delegation, which is equivalent to using a method as another method parameter, and can also be used as a bridge between t ...

Catalog Preface 1. Brightness and Contrast 1. What is brightness and contrast 2. Brightness and Contrast Adjustment Principle 3. Brightness and Contrast Adjustment Code Implementation 4,API-convertScaleAbs 2. Gamma Correction 1. Introduction of Gamma Correction 2. Gamma Correction Principle ...

Just a week before the end of the last round of overtime work, the leader came to tell me: "Birds, weekends and overtime work are better match!"Poor children have new urgent tasks, and the good overtime life is starting again. NoThis is not the life that newbies want. Newbies want to resist. N ...

Life in the world is like living among thorns, the heart does not move, people do not move, do not hurt, if the heart is moving, people move, hurt their body, hurt their bones, so we can experience all kinds of pain in the world catalog My fighting dream Sad Xiao Ming What is the observer model? Re ...

Background An account can only be logged in at one place. Similar business requirements are very common in existing post management systems. However, in the original spring security oauth2 token method process (so-called login) can not meet similar needs. Let's first look at TokenEndpoint's method flow The client accesses the / oauth/token int ...

Thank you for your guidance. In view of the bad nature of setInterval, modify it, implement setInterval with setTimeout, and put it in the move attribute of Rain prototype. Operation result: the screen is in disorder and the browser is stuck.. as a result of: setTimeout and setInterval should not be written in the fu ...