Go 数组(2)

把同样类型的一个数组赋值给另外一个数组
package main;
import "fmt";
func main() {
     var  array1[5]  string ;
     array2:=[5]string {"red","blue","write","yellow","fink"}
     array3:=[4]string {"red","blue","write","yellow"}
     array1=array2;
     fmt.Println(array1);
     fmt.Println(array2)
    fmt.Println(array3)
}

输出:

[red blue write yellow fink]
[red blue write yellow fink]
[red blue write yellow]
数组变量的类型包括数组长度和每个元素的类型。只有这两部分都相同的数组,才是类型相同的数组,才能互相赋值,
不然会报错
 
把一个指针数组赋值给另一个
package main;
import "fmt";
func main() {
    var  array1[3]*string ;
    fmt.Println(array1);
    array2 := [3]*string{new(string), new(string), new(string)}
    *array2[0]="red";
    *array2[1]="blue";
    *array2[2]="screen"
    array1 = array2
    fmt.Println(array1);
    fmt.Println(array2)

}

输出:

[<nil> <nil> <nil>]
[0xc0000501c0 0xc0000501d0 0xc0000501e0]
[0xc0000501c0 0xc0000501d0 0xc0000501e0]

 

 

 

posted @ 2019-05-14 17:10  1点  阅读(276)  评论(0编辑  收藏  举报