40 lines
797 B
Go
40 lines
797 B
Go
package slice
|
|
|
|
// Del 删除特定索引的元素
|
|
func Del[V any](slice *[]V, index int) {
|
|
s := *slice
|
|
if index < 0 {
|
|
index = 0
|
|
} else if index >= len(*slice) {
|
|
index = len(*slice) - 1
|
|
}
|
|
*slice = append(s[:index], s[index+1:]...)
|
|
}
|
|
|
|
// Insert 在特定索引插入元素
|
|
func Insert[V any](slice *[]V, index int, value V) {
|
|
s := *slice
|
|
if index <= 0 {
|
|
*slice = append([]V{value}, s...)
|
|
} else if index >= len(s) {
|
|
*slice = append(s, value)
|
|
} else {
|
|
*slice = append(s[:index], append([]V{value}, s[index:]...)...)
|
|
}
|
|
}
|
|
|
|
// Move 移动特定索引
|
|
func Move[V any](slice *[]V, index, to int) {
|
|
s := *slice
|
|
v := s[index]
|
|
if index == to {
|
|
return
|
|
} else if to < index {
|
|
Del[V](slice, index)
|
|
Insert(slice, to, v)
|
|
} else {
|
|
Insert(slice, to, v)
|
|
Del[V](slice, index)
|
|
}
|
|
}
|