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Exercise Parallax Rolling Example Introduce parallax In the process of web page rolling, multi-level elements are moved to different degrees to form a three-dimensional visual effect of the web page display technology.Simple stereoscopic effect can be achieved by generating different parallax between foreground and background when moving a scen ...

When I was in college, I knew about the database, heard the teacher talk about the line-level lock, and I had this concept in my mind. I didn't see the source code, nor did I realize it. When I read the suricata source code last year, I happened to see the hash row lock by chance. I felt an inexplicable impulse and felt that this should be the ...

Recognize that you are still garbage After deleting all the previous articles and closing the blog, I feel that some articles I wrote before are too rubbish, so I will review them for my own amusement. It's a good thing to think of your own dishes. At least you know that you need to continue to learn, and at least you have the motivation to con ...

Encapsulation Definition: Encapsulation is the abstraction of data and data The operations are encapsulated so that the data is protected internally so that the rest of the program can be authorized (by defining functions internally, such as get, set for java) Method) to operate on the data Here's the most understandable encapsulati ...

Provide: ZStack Cloud Computing Series of Courses This tutorial is Guide to Sed Use The second of the two articles. Content introduction Sed Stream Editor is a powerful editing tool that can perform many operations with very little input. In the last tutorial, we discussed Basic knowledge of sed text editor. This article will continue ...

Front-end business development will encounter some lists that can not be loaded by paging, which we generally call long lists. In this article, we define long lists as lists with data lengths greater than 1000 and cannot be presented in paginated form. This article explores the following topics: Is it possible to optimize the long list of fu ...

Java concurrent packages provide a framework that greatly simplifies the development required to perform asynchronous tasks. In this section, we will explore this framework initially. In the previous introduction, thread Thread represents both the task to be performed and the execution mechanism. This framework introduces the concept of "e ...

The idea of the game of taking a ball is clear, that is, to traverse all possible situations of two people, and finally to see the number of odd balls in two hands.Depth-first search can be used when traversing But direct depth-first searches are definitely not possible, because if you have 1,000 balls, you have three choices at a time, tota ...

Last article Introduces the syntax of Flex layouts, and today introduces Flex writing for common layouts. You'll see that no matter what the layout is, Flex can usually be done in a few lines of commands. I only list the code, please refer to the detailed syntax explanation Flex Layout Tutorial: Grammar Text .My main reference is La ...

In JavaScrip, function is a built-in class object, that is to say, it is a type of object that can be used for the management of built-in objects like other objects of String, Array, Number and Object classes. Because function is actually an object, it can be "stored in variables, passed through parameters to (another) function, created i ...