python and GO operation slice list way instance code

python and GO operation slice, list way instance code

The GO code goes through slice, looking for some slice, and counting.

type Element interface{}

func main() {
  a := []int{1, 2, 3, 4, 1}

  for _, i := range a {
   fmt.Println(i)
  }
  for i := 0; i < len(a); i++ {
   //fmt.Println(i)
  }
  fmt.Println(index0(a, 3))
  fmt.Println(index0([]string{"a", "b", "c", "d", "e"}, "e"))
  sort.Ints(a) // The sorting 
  fmt.Println(a)

}

//
func index0(a Element, i interface{}) int {

  if b, ok := a.([]int); ok {
   if c, ok1 := i.(int); ok1 {
     for indexC, v := range b {
      if v == c {
        return indexC
      }
     }
   }
  }
  if b, ok := a.([]string); ok {
   if c, ok1 := i.(string); ok1 {
     for indexC, v := range b {
      if v == c {
        return indexC
      }
     }
   }
  }
  return -1
}

You can see that in the GO language above, slice has no way to find an element. I'm going to custom 1 method

The code for python below is very clean

a=[1,2,3,4,1]
for b in a :
  print(b)
i=0
while i <len(a):
  print(a[i])
  i=i+1
#print( sorted(a))  way 1 The sorting 
a.sort()
print(a)
print( a.index(3))
a.count(1)

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