Use the Go language for loop to quickly implement the flip function

Using the Go language to implement the flip function can be implemented very quickly through a for loop. The flip function is to reverse the order of elements in a string or array, and can be applied in many scenarios, such as string flipping, array element flipping, etc.

Let’s take a look at how to use the for loop of Go language to realize the flip function of strings and arrays, and attach specific code examples.

String flip:

package main

import (
    "fmt"
)

func reverseString(str string) string {
    runes := []rune(str)
    for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
        runes[i], runes[j] = runes[j], runes[i]
    }
    return string(runes)
}

func main() {
    str := "Hello, World!"
    fmt.Println("Original string:", str)
    reversedStr := reverseString(str)
    fmt.Println("Reversed string:", reversedStr)
}

In the above code, we define a reverseString function that accepts a string as a parameter and returns the reversed String. Using a for loop, we continuously exchange characters at symmetric positions in the string to achieve flipping of the string.

Array element reversal:

package main

import (
    "fmt"
)

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

func main() {
    arr := []int{1, 2, 3, 4, 5}
    fmt.Println("Original array:", arr)
    reverseArray(arr)
    fmt.Println("Reversed array:", arr)
}

In the above code, we define a reverseArray function, which accepts an integer array as a parameter, directly on the original array Perform element flip operations. Also using the for loop, we continuously exchange elements at symmetric positions in the array to achieve the flip operation of array elements.

Through the above example code, you can see that the for loop of Go language can be used to realize the flipping function of strings and arrays very conveniently. This method is simple and efficient and suitable for many scenarios. I hope it will be helpful to you.

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