Golang Declare slice

Unlike an array, the length of a slice can be modified at runtime, which is equivalent to an array with variable length.

The type []T is a slice of element type T.

A slice reference to a continuous segment of an array. the expression.

var slice1 []type = array1[start:end]

slice1 is a subset of the elements of array1 indexed from start to end-1.

切片也可以以类似于数组的方式初始化。

下面的示例创建一个长度为 5 的数组并创建一个相关的切片。

var slice2 = []int{2, 3, 5, 7, 11}

The following is a complete code example.

package main

import "fmt"

func main() {
	var slice1 []int
	fmt.Println(slice1)
}

Below is the program output:

[]