How to use for loop to implement flip operation in Go language

Title: How to use for loop to implement flip operation in Go language

In Go language, you can easily flip arrays, slices and other data by using for loop The structure is flipped. In this article, we will introduce how to use for loops to flip arrays and slices, and give specific code examples.

Operation of flipping array

First, let’s look at how to flip the array through a for loop. We define an array containing integer elements and flip it using a for loop.

package main

import "fmt"

func reverseArray(arr []int) []int {
    for i, j := 0, len(arr)-1; i < j; i, j = i+1, j-1 {
        arr[i], arr[j] = arr[j], arr[i]
    }
    return arr
}

func main() {
    array := []int{1, 2, 3, 4, 5}
    fmt.Println("原始数组：", array)
    
    reversedArray := reverseArray(array)
    fmt.Println("翻转后的数组：", reversedArray)
}

In the above code, we define a reverseArray function that uses a for loop to implement the flip operation of the array. By exchanging the front and back elements of the array in sequence, the array is finally flipped. In the main function, we demonstrate how to use this function to flip an array and output the result.

Operation of flipping slices

Next, let’s look at how to flip slices through a for loop. Similarly, we define a slice containing integer elements and flip it using a for loop.

package main

import "fmt"

func reverseSlice(s []int) []int {
    for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
        s[i], s[j] = s[j], s[i]
    }
    return s
}

func main() {
    slice := []int{1, 2, 3, 4, 5}
    fmt.Println("原始切片：", slice)
    
    reversedSlice := reverseSlice(slice)
    fmt.Println("翻转后的切片：", reversedSlice)
}

In the above code, we define a reverseSlice function, which also uses a for loop to implement the flipping operation of the slice. By exchanging the front and rear elements of the slice in sequence, the slice is finally flipped. In the main function, we demonstrate how to use this function to flip a slice and output the result.

Through the above code examples, we can see that it is a simple and effective way to use for loops to flip arrays and slices in the Go language. By flexible use of loop control and element exchange, we can easily flip the data structure. Hope this article is helpful to you!

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