go 切片的 插入、刪除

package main import ( "fmt" ) func InsertSpringSliceCopy(slice, insertion []string, index int) []string { result :=make([]string, len(slice)+len(insertion)) at := copy(result, slice[:index]) at += copy(result[at:], insertion) copy(result[at:], slice[index:]) return result } func InsertSpringSlice(slice, insertion []string, index int) []string { return append(slice[:index], append(insertion, slice[index:]...)...) } func RemoveSpringSliceCopy(slice []string, start,end int) []string { result := make([]string, len(slice)-(end-start)) at :=copy(result, slice[:start]) copy(result[at:], slice[end:]) return result } func RemoveSpringSlice(slice []string, start, end int) []string { return append(slice[:start], slice[end:]...) } func main() { s := []string{"C", "H", "A", "O"} x := InsertSpringSliceCopy(s, []string{"a", "b", "c"}, 0) fmt.Println(x) w := []string {"C", "H", "E", "N"} ww :=InsertSpringSlice(w, []string{"c", "h", "a", "o"}, len(w)) fmt.Println(ww) d := []string {"a", "b", "c", "d", "e", "f"} dd := RemoveSpringSliceCopy(d, 2, 4) fmt.Println(dd) d2 := []string {"A", "B", "C", "D", "E", "F", "G"} dd2 := RemoveSpringSlice(d2, 2, 4) fmt.Println(dd2) }