go-tour/slice-len-cap.go
2020-02-04 21:44:36 -06:00

25 lines
387 B
Go

package main
import "fmt"
func main() {
s := []int{2, 3, 5, 7, 11, 13}
printSlice(s)
// Slice the slive to give it zero length.
s = s[:0]
printSlice(s)
// Extend its length
s = s[:4]
printSlice(s)
// Drop its first two values
s = s[2:]
printSlice(s)
}
func printSlice(s []int) {
fmt.Printf("len=%d cap=%d %v\n", len(s), cap(s), s)
}