Home Backend Development Golang Analysis of the difference between structure type and array type of Golang function

Analysis of the difference between structure type and array type of Golang function

May 16, 2023 am 09:00 AM
array type Structure type golang function

In Golang, the data types of functions can be divided into structure types and array types. There are important differences between these two types. This article will analyze their differences.

1. Structure type

Structure is a data type composed of some fields. These fields can be of different types, basic types or other custom types. In Golang, use the keyword "struct" to define a structure type, and then use the type name to create an instance of the structure. A structure can access its fields through dot notation, and can also use pointers to obtain and modify its fields.

In Golang, the member variables of a structure cannot be of its own type, and the structure type can be nested, that is, a structure can contain another structure.

The following is an example of a simple structure type:

type Person struct {
    name string
    age  int
}
Copy after login

In the above example, we define a structure type named "Person", which contains two member variables : A string type "name" and an integer type "age".

2. Array type

An array is a data structure of limited length, consisting of elements of the same type. When declaring an array variable, you need to specify the type of elements in the array and the length of the array. In Golang, the length of arrays is fixed and array elements can be accessed through subscripts.

The following is an example of a simple array type:

var arr [3]int // 声明一个长度为3,元素类型为int的数组
Copy after login

In the above example, we declared an array named "arr" which has 3 elements, each element The type is int.

3. The difference between structure types and array types

  1. Types of member variables: Structure types can contain different types of member variables; while elements in array types must be the same type.
  2. Difference in size: The size of a structure type is determined based on the type and number of its member variables; while the size of an array type is determined only based on the type and number of its elements.
  3. Memory allocation method: Instances of structure types are usually allocated on the heap memory; instances of array types are usually allocated on the stack memory.
  4. How to access elements: Instances of structure types can access their fields through dots, while instances of array types need to access their elements through subscripts.

In short, structure types and array types each have their own unique characteristics and uses. For scenarios where different types of data need to be organized, we should use structure types; for scenarios where we need to store elements of the same type, we should use array types.

The above is the detailed content of Analysis of the difference between structure type and array type of Golang function. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Tips for applying default parameter values ​​of Golang functions Tips for applying default parameter values ​​of Golang functions May 15, 2023 pm 11:54 PM

Golang is a modern programming language with many unique and powerful features. One of them is the technique of using default values ​​for function parameters. This article will dive into how to use this technique and how to optimize your code. 1. What are the default values ​​of function parameters? Function parameter default value refers to setting a default value for its parameter when defining a function, so that when the function is called, if no value is passed to the parameter, the default value will be used as the parameter value. Here is a simple example: funcmyFunction(namestr

Tips for elegant exit and loop traversal jump out of Golang functions Tips for elegant exit and loop traversal jump out of Golang functions May 16, 2023 pm 09:40 PM

As a programming language with high development efficiency and excellent performance, Golang's powerful function capabilities are one of its key features. During the development process, we often encounter situations where we need to exit a function or loop through. This article will introduce the graceful exit and loop traversal exit tips of Golang functions. 1. Graceful exit of functions In Golang programming, sometimes we need to exit gracefully in functions. This situation is usually because we encounter some errors in the function or the execution results of the function are not as expected. There are the following two

Application and underlying implementation of reflection and type assertion in Golang functions Application and underlying implementation of reflection and type assertion in Golang functions May 16, 2023 pm 12:01 PM

Application and underlying implementation of Golang function reflection and type assertion In Golang programming, function reflection and type assertion are two very important concepts. Function reflection allows us to dynamically call functions at runtime, and type assertions can help us perform type conversion operations when dealing with interface types. This article will discuss in depth the application of these two concepts and their underlying implementation principles. 1. Function reflection Function reflection refers to obtaining the specific information of the function when the program is running, such as function name, number of parameters, parameter type, etc.

Application skills of system calls and file system operations of Golang functions Application skills of system calls and file system operations of Golang functions May 17, 2023 am 08:08 AM

With the continuous development of computer technology, various languages ​​​​have also emerged. Among them, Golang (also known as GO language) has become more and more popular among developers in recent years because of its efficiency, simplicity, and ease of learning. In Golang, function system calls and file system operations are common application techniques. This article will introduce the application methods of these techniques in detail to help everyone better master Golang development skills. 1. Function system call 1. What is system call? System calls are services provided by the operating system kernel

What are the php array types? What are the php array types? Jun 01, 2023 am 10:41 AM

There are two types of PHP arrays, namely: 1. Index array, the subscript consists of numbers, starting from 0 by default, each number corresponds to the position of an array element in the array; 2. Associative array, the subscript consists of numerical values ​​and characters It is composed of a mixture of strings. If a key name in an array is not a number, then the array is an associative array.

Detailed explanation of variable scope in Golang functions Detailed explanation of variable scope in Golang functions Jan 18, 2024 am 08:51 AM

Detailed explanation of variable scope in Golang functions In Golang, the scope of a variable refers to the accessible range of the variable. Understanding variable scope is important for code readability and maintainability. In this article, we will take a deep dive into variable scope in Golang functions and provide concrete code examples. In Golang, the scope of variables can be divided into global scope and local scope. The global scope refers to variables declared outside all functions, that is, variables defined outside the function. These variables can be

Assignment methods and differences when defining variables in Golang functions Assignment methods and differences when defining variables in Golang functions May 17, 2023 pm 07:01 PM

Golang is a fast, efficient, and modern programming language that automatically checks types at compile time and has features such as concurrency and memory safety, so it is favored by more and more developers. In Golang, we often need to use functions to encapsulate business logic, and the assignment method when defining variables in functions is a common problem. This article will explain this problem in detail and analyze the differences. Variable definition In Golang, variables can be defined in two ways: var and :=. Among them, var square

How many data types are there in php array How many data types are there in php array Jun 06, 2023 pm 03:41 PM

The data types in PHP arrays are divided into three categories: scalar type, composite type and special type. The eight subcategories are: 1. boolean, Boolean type; 2. integer, integer type; 3. float, floating point type, also known as As double; 4. string, string; 5. array, array; 6. object, object; 7. resource, resource type; 8. NULL, empty null.

See all articles