1、数组的初始化

示例:

package main //必须有个main包

import "fmt"

func main() {
//声明定义同时赋值,叫初始化
//1、全部初始化
var a [5]int = [5]int{1, 2, 3, 4, 5}
fmt.Println("a = ", a) b := [5]int{1, 2, 3, 4, 5}
fmt.Println("b = ", b) //部分初始化,没有初始化的元素,自动赋值为0
c := [5]int{1, 2, 3}
fmt.Println("c = ", c) //指定某个元素初始化
d := [5]int{2: 10, 4: 20} //下标为2的赋值为10,下标为4的赋值为20
fmt.Println("d = ", d) }

执行结果:

a =  [1 2 3 4 5]
b = [1 2 3 4 5]
c = [1 2 3 0 0]
d = [0 0 10 0 20]