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)

}

a =  [1 2 3 4 5]

b =  [1 2 3 4 5]

c =  [1 2 3 0 0]

d =  [0 0 10 0 20]