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Why do I need a bloom filter Imagine how you would handle the following scenario: Whether the mobile phone number is registered repeatedly Has the user participated in a second kill activity Forge requests for a large number of id query records that do not exist. At this time, the cache misses. How to avoid cache penetration To solv ...

2021SC@SDUSC 1, Overview This paper will mainly describe the related methods in packing package in ebiten. Packing package provides a two-dimensional space packing algorithm. The file is located in the internal/packing/packing.go folder. 2, Code analysis const ( minSize = 1 ) type Page struct { root *Node size int maxSize int ...

Original link https://llfc.club/category?catid=20RbopkFO8nsJafpgCwwxXoCWAs#!aid/21lVoQbhTZo83drdNp10Iv2WOfc Objectives of this section In the previous section, we added the routing of the home page and the html template of the home page. In this section, we return a template with parameter rendering, add the load data from the database to the h ...

  Original text: https://mp.weixin.qq.com/s?__biz=MzAxNzY0NDE3NA==&mid=2247488032&idx=1&sn=5d0c370dd992e1dd82030e5ac5600244&chksm=9be33dc1ac94b4d7798bb7ed230c899088a5c972c1c099e48779505f89539f0a840520cd0d4d&scene=178&cur_album_id=1877309550266007553#rd --------------------   Hello, I'm polarisxu. Two days ago, Huoding wr ...

1, Integer First of all, use the simplest example provided inside to sort the shaping package main import ( "fmt" "sort" ) func main() { a := sort.IntSlice{2, 8, 3, 7, 9, 4, 1, 6} fmt.Println("Before sorting", a) sort.Sort(a) fmt.Println("After sorting", a) } You'd better wonder what sort.IntSlice is. Click to view the source ...

0 originIn September this year, the Department platform project I was responsible for released a new version, which also launched a new function. In short, it is a little similar to scheduled tasks. On the first day, everything was normal, but on the second day, very few tasks were not executed normally (the suspended tasks continued to be exec ...

explainIn the actual development process, we are bound to use MySQL, Redis and other services. In order to realize the configuration of the system, we will put some configuration information in some files separately, and read the configuration file directly where we use it.There are many common file configuration methods, such as json, tomal, y ...

Go—Redis 1, Basic introduction, installation and principle of Redis 1. Basic introduction: ① Redis is a NoSQL database (non relational database) 💨 Official website ② Redis (remote dictionary server), which means remote dictionary server, can reach 15w qps on a single machine. It is suitable for caching and persistence. ③ Redis is a high-p ...

summary A variable is defined in Go. Whether it is allocated on the heap or on the stack. The official Go document tells us that it doesn't need to be controlled. They will analyze it. In fact, this analysis is escape analysis Generally speaking, when the pointer of an object is referenced by multiple methods or threads, we call the pointer a ...

Warm tips: suitable for students with memory operation experience 1, The role of unsafe According to the definition of golang, unsafe is a type safe operation. As the name suggests, it should be used very carefully; Unsafe can be dangerous, but it can also be very useful. For example, when using system calls and Go structures that must have t ...