Detailed explanation of Go language types: What are the basic types?

Detailed explanation of Go language types: What are the basic types?

As a statically typed programming language, Go language has a wealth of basic types, which provide programmers with flexibility and efficiency. This article will introduce in detail the common basic types in the Go language, and attach corresponding code examples for readers' reference.

1. Integer type (int)
   Integer types in Go language include int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, etc. The size of the int type depends on the platform when the program is running, usually 32-bit or 64-bit. The uint type is an unsigned integer type and does not support negative numbers.

Sample code:

package main

import "fmt"

func main() {
    var a int = 10
    var b uint = 5
    fmt.Println(a)
    fmt.Println(b)
}

2. Floating point type (float)
   The floating point types in Go language include float32 and float64, which represent single-precision and double-precision floating Points. float32 occupies 4 bytes, float64 occupies 8 bytes, float64 provides higher precision.

Sample code:

package main

import "fmt"

func main() {
    var a float32 = 3.14
    var b float64 = 3.1415926
    fmt.Println(a)
    fmt.Println(b)
}

3. Complex number type (complex)
   The complex number type in Go language is divided into complex64 and complex128, which represent two precision complex number types. Complex64 consists of two float32, and complex128 consists of two float64.

Sample code:

package main

import "fmt"

func main() {
    var a complex64 = complex(1, 2)
    var b complex128 = complex(2, 3)
    fmt.Println(a)
    fmt.Println(b)
}

4. Boolean type (bool)
   The Boolean type in Go language has only two values: true and false.

Sample code:

package main

import "fmt"

func main() {
    var a bool = true
    var b bool = false
    fmt.Println(a)
    fmt.Println(b)
}

5. String type (string)
   The string type in Go language uses UTF-8 encoding and is a sequence of bytes . Strings are enclosed in double quotes ("").

Sample code:

package main

import "fmt"

func main() {
    var a string = "Hello, World!"
    fmt.Println(a)
}

6. Byte type (byte)
   In Go language, byte is an alias of uint8 type, byte is used to save ASCII encoding single character.

Sample code:

package main

import "fmt"

func main() {
    var a byte = 'A'
    fmt.Println(a)
}

The above are the common basic types in Go language. Through the introduction and code examples of this article, readers can better understand the type system of Go language and provide Programming practices provide reference.

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