The essence of Slice deleting elements
The Go language does not provide a syntax or interface for deleting elements, but deletes elements by utilizing the characteristics of the slice itself—— Append elements. That is, the deleted element is used as the dividing point to reconnect the two parts of memory.
Use the append feature of the slice and implement it in code.
Implementation of deleting elements in Slice:
Since slice does not have syntax sugar to implement deletion, its feature of appending elements is used to complete the deletion of elements; the built-in function append() is used to implement the deletion of a single element. and deletion of element fragments.
The specific idea is
The specific code implementation is as follows:
// 從切片中刪除元素
func SliceDelete() {
// 初始化一個(gè)新的切片 seq
seq := []string{"a", "b", "c", "d", "e", "f", "g"}
// 指定刪除位置
index := 3
// 輸出刪除位置之前和之后的元素
fmt.Println(seq[:index], seq[index+1:])
// seq[index+1:]... 表示將后段的整個(gè)添加到前段中
// 將刪除前后的元素連接起來(lái)
seq = append(seq[:index], seq[index+1:]...)
// 輸出鏈接后的切片
fmt.Println(seq)
}
OutPut Result:
[a b c] [e f g]
[a b c e f g]The operation process of Slice deleting elements
a b c d e f g
-------------------------------------
| |
↓ seq[:index] ↓ seq[index+1:]
a b c e f g
------------- -------------
| |
| |
↓ ↓
a b c e f g
----------------------------------
append(seq[:index], seq[index+1:]...) For more golang knowledge, please pay attention to the golang tutorial column.
The above is the detailed content of How to delete elements in an array in golang. For more information, please follow other related articles on the PHP Chinese website!
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