Delete Array Elements in Go: Step-by-Step Guide

In Go language, arrays are fixed-length data structures and cannot directly remove elements. However, this can be achieved by using slices to delete array elements.

The specific steps are as follows:

1. Declare a slice and add elements before the index of the elements to be deleted to the slice.
2. Add the elements after the index of the element to be deleted to the slice.
3. The final slice obtained is the result after removing the elements.

Here is an example code:

package main

import "fmt"

func main() {
    // 原始数组
    arr := []int{1, 2, 3, 4, 5}

    // 删除索引为2的元素（即值为3的元素）
    index := 2

    // 将待删除元素的索引之前的元素添加到切片中
    result := append(arr[:index], arr[index+1:]...)

    fmt.Println(result)  // 输出：[1 2 4 5]
}

In the above example, we declared an original array arr and then specified the index of the element to be removed as 2. Using the append function in slices, we combined the part before the element to be deleted arr[:index] with the part after the element arr[index+1:], resulting in the array without the deleted element. Lastly, we printed the result [1 2 4 5].