Go语言用map实现堆栈功能

Go语言用map实现堆栈功能

package stack
import (
	"strconv"
)
type Stack struct {
	quenu map[int]int
}
func New() *Stack{
	s := new(Stack)
	s.quenu = make(map[int]int)
	
	return s
}
func (s *Stack) Push(i int) {
	s.quenu[len(s.quenu)] = i
}
func (s *Stack) Pop() {
	delete(s.quenu, len(s.quenu)-1)
}
func (s *Stack) String() string {
	info := ""
	for i := 0; i < len(s.quenu); i++ {
		info = info + "[" + strconv.Itoa(i) + "," + strconv.Itoa(s.quenu[i]) + "]"
	}
	return info
}