---恢复内容开始---
Slices can be re-sliced, creating a new slice value that points to the same array.
The expression
s[lo:hi]
evaluates to a slice of the elements from lo through hi-1, inclusive. Thus
s[lo:lo]
is empty and
s[lo:lo+1]
has one element.
package main
import "fmt"
func main() {
p := []int{, , , , , }
fmt.Println("p ==", p)
fmt.Println("p[1:4] ==", p[:])
//missing low index implies 0
fmt.Println("p[:3] ==", p[:])
// missing high index implies len(s)
fmt.Println("p[4:] ==", p[:])
}
package main
import "fmt"
func main() {
p := []int{, , , , , }
fmt.Println("p ==", p)
fmt.Println("p[1:4] ==", p[:])
//missing low index implies 0
fmt.Println("p[:3] ==", p[:])
// missing high index implies len(s)
fmt.Println("p[4:] ==", p[:])
var a []string
a[] = "Hello"
a[] = "World"
fmt.Println(a[:])
}