func main() {

  fmt.Println(reverse("Golang python"))

}
func reverse(src string) string {
  dst := []rune(src)
  len := len(dst)
  var result []rune
  result = make([]rune, 0)
  for i := len - 1; i >= 0; i-- {
   result = append(result, dst[i])
  }
  return string(result)
}

#方法1--------------------------------------
s = 'Golang python'
print (s[::-1])

#方法2--------------------------------------
s = 'Golang python'
l = list(s)
l.reverse()
print (''.join(l) )

#方法3--------------------------------------
s = 'Golang python'
str=[]
k=0
for i in s:
  str.append(s[len(s)-1-k])
  k=k+1
print (''.join(str) )

#方法4--------------------------------------
s = 'Golang python'
str=[]
for i in s:
  str.insert(0,i)
print (''.join(str) )