go实现for range迭代时修改值的操作

package main 
import "fmt" 
func main() {
	x := make([]int, 3) 
	x[0], x[1], x[2] = 1, 2, 3 
	for i, val := range x {
		fmt.Println(&x[i], "vs.", &val)
	}
} 
//输出
0x416020 vs. 0x41602c
0x416024 vs. 0x41602c
0x416028 vs. 0x41602c

for i:=0;i<len;i++{}

for _,num :=range arr{}

func (student Student) rename() {
	student.name = "xiang"
}
func main() {
	var a []int
	a = []int{1, 2, 3, 4, 5, 6, 7, 8}
	for i := 0; i < len(a); i++ {
		a[i] = 0
	}
	fmt.Println(a)
}

func main() {
	var a []int
	a = []int{1, 2, 3, 4, 5, 6, 7, 8}
	for _, num := range a {
		num = 0
		fmt.Print(num, " ")
	}
	fmt.Println(a)
}