package demo import ( "fmt" "testing" ) func TestFunMap(t *testing.T) { var slice = []int{1, 23, 9, 6, 8, 453, 34} newSlice := sortArrAsc(slice) fmt.Println(newSlice) //[1 6 8 9 23 34 453] fmt.Println(slice) //[1 6 8 9 23 34 453] 切片是引用数据类型 newSlice = sortArrDesc(slice) fmt.Println(newSlice) //[453 34 23 9 8 6 1] fmt.Println(slice) //[453 34 23 9 8 6 1] 切片是引用数据类型 } //升序 func sortArrAsc(slice []int) []int { var sliceLen = len(slice) for i := 0; i < sliceLen; i++ { for j := i + 1; j < sliceLen; j++ { if slice[i] > slice[j] { temp := slice[i] slice[i] = slice[j] slice[j] = temp } } } return slice } //降序 func sortArrDesc(slice []int) []int { var sliceLen = len(slice) for i := 0; i < sliceLen; i++ { for j := i + 1; j < sliceLen; j++ { if slice[i] < slice[j] { temp := slice[i] slice[i] = slice[j] slice[j] = temp } } } return slice }