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The process control of the program determines how the program is executed. There are three main process controls: Sequential control Branch control Cycle control 1, Sequential control Sequence control is the simplest process control, which emphasizes that the code is executed from top to bottom without any sequence and jump. Note that variabl ...

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TCP sticky packet based on Go language Sticky bag example Server: package main import ( "bufio" "fmt" "io" "net" ) func Process2(conn net.Conn) { defer conn.Close() reader := bufio.NewReader(conn) var buf [1024]byte for { n, err := reader.Read(buf[:]) if err == io.EOF { break } if err != nil { fmt.Println("read from clie ...

Reflection of 09Go language foundation Internal mechanism of variables Variables in Go language are divided into two parts: Type information: predefined meta information. Value information: it can change dynamically during program operation. Reflection introduction Reflection refers to the ability to access and modify the program itself durin ...

Empty object design pattern is a behavioral design pattern, which is mainly used to deal with the inspection of empty objects. Using this design pattern avoids checking empty objects. That is, in this mode, using empty objects does not cause exceptions. The components of the empty object pattern include: Entity: interface, which defines the me ...

Conversion between string and int types The conversion between string and integer is the most commonly used in our programming. Here are the specific operations Itoa(): integer to string The Itoa() function is used to convert int type data to the corresponding string type. The function signature is as follows func Itoa(i int) string Code ...

Hello, I'm brother Xiao Dao. Today's interview topic is: closure. definition Closure is defined in computer science as a function that references internal variables of a function. After reading the definition, I fell into a deep thought... Indeed, if I hadn't touched closures before or didn't understand closures, this definition is really a ...

preface Channels is a type safe message queue. It acts as a pipeline between two goroutines, through which any resources will be exchanged synchronously. chan's ability to control goroutines interaction creates a Go synchronization mechanism. When the created chan has no capacity, it is called an unbuffered channel. Conversely, a chan crea ...

Dependency between services is very common in microservices. For example, the comment service depends on the audit service, and the audit service depends on the anti spam service. When the comment service calls the audit service, the audit service calls the anti spam service, and the anti spam service times out. Because the audit service depend ...

Chapter 5 functions Function allows us to package a statement sequence into a unit, and then call it many times from other parts of the program. The mechanism of function allows us to decompose a large work into small tasks. We have touched on functions before, and we will discuss more features of functions in this chapter 5.8 defined functio ...