cannot be addressed, which means that its address cannot be obtained through &. (Recommended Learning: Go )
# 不 can be summarized as: non -changing, temporary results and unsafe. If any of these conditions are met, it is not addressable.
Specifically:
package main type Named interface { // Name 用于获取名字。 Name() string } type Dog struct { name string } func (dog *Dog) SetName(name string) { dog.name = name } func (dog Dog) Name() string { return dog.name } func main() { // 示例1。 const num = 123 //_ = &num // 常量不可寻址。 //_ = &(123) // 基本类型值的字面量不可寻址。 var str = "abc" _ = str //_ = &(str[0]) // 对字符串变量的索引结果值不可寻址。 //_ = &(str[0:2]) // 对字符串变量的切片结果值不可寻址。 str2 := str[0] _ = &str2 // 但这样的寻址就是合法的。 //_ = &(123 + 456) // 算术操作的结果值不可寻址。 num2 := 456 _ = num2 //_ = &(num + num2) // 算术操作的结果值不可寻址。 //_ = &([3]int{1, 2, 3}[0]) // 对数组字面量的索引结果值不可寻址。 //_ = &([3]int{1, 2, 3}[0:2]) // 对数组字面量的切片结果值不可寻址。 _ = &([]int{1, 2, 3}[0]) // 对切片字面量的索引结果值却是可寻址的。 //_ = &([]int{1, 2, 3}[0:2]) // 对切片字面量的切片结果值不可寻址。 //_ = &(map[int]string{1: "a"}[0]) // 对字典字面量的索引结果值不可寻址。 var map1 = map[int]string{1: "a", 2: "b", 3: "c"} _ = map1 //_ = &(map1[2]) // 对字典变量的索引结果值不可寻址。 //_ = &(func(x, y int) int { // return x + y //}) // 字面量代表的函数不可寻址。 //_ = &(fmt.Sprintf) // 标识符代表的函数不可寻址。 //_ = &(fmt.Sprintln("abc")) // 对函数的调用结果值不可寻址。 dog := Dog{"little pig"} _ = dog //_ = &(dog.Name) // 标识符代表的函数不可寻址。 //_ = &(dog.Name()) // 对方法的调用结果值不可寻址。 //_ = &(Dog{"little pig"}.name) // 结构体字面量的字段不可寻址。 //_ = &(interface{}(dog)) // 类型转换表达式的结果值不可寻址。 dogI := interface{}(dog) _ = dogI //_ = &(dogI.(Named)) // 类型断言表达式的结果值不可寻址。 named := dogI.(Named) _ = named //_ = &(named.(Dog)) // 类型断言表达式的结果值不可寻址。 var chan1 = make(chan int, 1) chan1 <- 1 //_ = &(<-chan1) // 接收表达式的结果值不可寻址。 }
The above is the detailed content of Which values are not addressable in Golang. For more information, please follow other related articles on the PHP Chinese website!

Golangisidealforbuildingscalablesystemsduetoitsefficiencyandconcurrency,whilePythonexcelsinquickscriptinganddataanalysisduetoitssimplicityandvastecosystem.Golang'sdesignencouragesclean,readablecodeanditsgoroutinesenableefficientconcurrentoperations,t

Golang is better than C in concurrency, while C is better than Golang in raw speed. 1) Golang achieves efficient concurrency through goroutine and channel, which is suitable for handling a large number of concurrent tasks. 2)C Through compiler optimization and standard library, it provides high performance close to hardware, suitable for applications that require extreme optimization.

Reasons for choosing Golang include: 1) high concurrency performance, 2) static type system, 3) garbage collection mechanism, 4) rich standard libraries and ecosystems, which make it an ideal choice for developing efficient and reliable software.

Golang is suitable for rapid development and concurrent scenarios, and C is suitable for scenarios where extreme performance and low-level control are required. 1) Golang improves performance through garbage collection and concurrency mechanisms, and is suitable for high-concurrency Web service development. 2) C achieves the ultimate performance through manual memory management and compiler optimization, and is suitable for embedded system development.

Golang performs better in compilation time and concurrent processing, while C has more advantages in running speed and memory management. 1.Golang has fast compilation speed and is suitable for rapid development. 2.C runs fast and is suitable for performance-critical applications. 3. Golang is simple and efficient in concurrent processing, suitable for concurrent programming. 4.C Manual memory management provides higher performance, but increases development complexity.

Golang's application in web services and system programming is mainly reflected in its simplicity, efficiency and concurrency. 1) In web services, Golang supports the creation of high-performance web applications and APIs through powerful HTTP libraries and concurrent processing capabilities. 2) In system programming, Golang uses features close to hardware and compatibility with C language to be suitable for operating system development and embedded systems.

Golang and C have their own advantages and disadvantages in performance comparison: 1. Golang is suitable for high concurrency and rapid development, but garbage collection may affect performance; 2.C provides higher performance and hardware control, but has high development complexity. When making a choice, you need to consider project requirements and team skills in a comprehensive way.

Golang is suitable for high-performance and concurrent programming scenarios, while Python is suitable for rapid development and data processing. 1.Golang emphasizes simplicity and efficiency, and is suitable for back-end services and microservices. 2. Python is known for its concise syntax and rich libraries, suitable for data science and machine learning.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

Dreamweaver Mac version
Visual web development tools

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software