Detailed explanation of Go language data types: overview of basic data types

Go language provides the following basic data types: bool: boolean int: signed integer uint: unsigned integer float: floating point number complex: complex byte: character string: string

Detailed explanation of Go language data types: Overview of basic data types

Go language is a statically strongly typed programming language, which provides a variety of basic data types to represent different data values. These data types limit the type and range of values ​​that can be stored in variables and constants.

Basic data types

Go language provides the following basic data types:

• Boolean (bool): Represents a true or false value, the size is 1 byte.
• Integer: Includes int, int8, int16, int32 and int64, representing signed integers of different sizes.
• Unsigned integer: Includes uint, uint8, uint16, uint32 and uint64, representing unsigned integers of different sizes.
• Floating point type: Includes float32 and float64, representing floating point numbers with different precisions and ranges.
• Complex type (complex): represents a complex number with real and imaginary parts, with a size of 16 bytes.
• Character type (byte): represents ASCII characters, the size is 1 byte.
• String (string): represents a string of characters, which is essentially an immutable byte array.

Type inference

Go language supports type inference, which means that the compiler can automatically infer the type of a variable or constant without explicit declaration. For example:

var age int = 25
var name string = "John Doe"
var isValid bool = true

Practical case

The following is a simple program example that demonstrates how to use basic data types:

package main

import "fmt"

func main() {
    age := 25
    name := "John Doe"
    isValid := true

    fmt.Println("Age:", age)
    fmt.Println("Name:", name)
    fmt.Println("Is Valid:", isValid)
}

Output:

Age: 25
Name: John Doe
Is Valid: true

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