golang多维数组的切片

通过for循环来取多维数组的切片

package main

import (
  "fmt"
)

func main() {
  a := [...]string{"USA", "china", "india"}
  b := a
  b[0] = "Singapore"

  fmt.Println("a is", a)
  fmt.Println("b is ", b)

  for i, v := range a {
    fmt.Println(i, v)
  }

  for i:=0; i< len(a); i++ {
    fmt.Println(i, a[i])
  }

  d := [7]int{1,2,3,4,5,6, 7}
  var e []int = d[1:4]
  fmt.Println(e)


  //f :=[3][3]int {
  //  {1,2,3},
  //  {4,5,6},
  //  {7,8,9},
  //}

  //var m [][]int   //多维数组的切片，通过循环一下
  //for i, v :=range f{
  //  fmt.Println(v[1:3])
  //  m = append(m, f[i][1:3])
  //  fmt.Println(m)
  //}

  //fmt.Println("
")
  //fmt.Println( m)

  u := [7]int{1,2,2,3,4,5,7}
  t := u[1:3]
  fmt.Println(t)
  fmt.Println("len", len(t))
  fmt.Println("cap", cap(t))
}