golang版本的BaseSearchEx sortMap函数没有起到排序的作用

[youminxue]

func (s *BaseSearchEx) sortMap(mp map[int32]int) []int32 {
var newMp = make([]int, 0)
var newMpKey = make([]int32, 0)
for oldk, v := range mp {
newMp = append(newMp, v)
newMpKey = append(newMpKey, oldk)
}
sort.Ints(newMp) //排序

list := make([]int32, 0)
for k, _ := range newMp { //这里的k是下标是0到len(newMp)-1，也就是跟for k:=0;k<len(newMp);k++ {一样，上面排序没有用 
	list = append(list, newMpKey[k])
}
return list

}