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]