How to use Go language array function to sum and return the result?

How to use the array function of Go language to sum and return the result?

Go language provides a wealth of array operation functions, including functions for finding the sum of array elements. Use these functions to conveniently perform sum operations on arrays and return the results. This article will introduce how to use the array function of Go language to sum and return the result, with code examples.

First, let’s take a look at arrays in Go language. An array is a data structure that stores a fixed-size sequence of elements. In the Go language, the length of the array is fixed, and the type and element type of the array are also fixed. For example, the following code defines an integer array with a length of 5:

var arr [5]int

Next, we use the array function to sum the sample code as follows:

package main

import "fmt"

func sumArr(arr []int) int {
    sum := 0
    for _, val := range arr {
        sum += val
    }
    return sum
}

func main() {
    arr := []int{1, 2, 3, 4, 5}
    result := sumArr(arr)
    fmt.Println("数组元素的和为：", result)
}

In the above code, we define A function named sumArr, which accepts a parameter arr, which is an integer slice. The function uses a loop to traverse each element in the slice, accumulate it into the sum variable, and finally return the sum value.

In the main function, we create an integer slice arr and initialize some values. Then, we use the sumArr function to sum arr, save the result in the result variable, and finally print the result.

By running the above code, we can get the output result:

数组元素的和为： 15

This shows that we successfully used the array function of the Go language to sum and return the result.

In addition to the above example code, we can also use other array functions to sum. For example, we can use a more concise method to achieve the same function, the code is as follows:

package main

import "fmt"

func main() {
    arr := []int{1, 2, 3, 4, 5}
    sum := 0
    for _, val := range arr {
        sum += val
    }
    fmt.Println("数组元素的和为：", sum)
}

In this example, we use a loop directly in the main function to calculate the sum of the array elements, omitting Steps to define a function.

Through the above code examples, we can see that it is very simple to use the array function of Go language to sum and return the result. Just use the corresponding array function and pass in the array parameters to be summed to get the result. Such features make the Go language very efficient and convenient when processing array operations.

In summary, this article introduces how to use the array function of Go language to sum and return the result. We demonstrated how to use array functions to complete the sum operation through sample code and gave a more concise method. I hope this article can help readers who are interested in this issue, and I also hope that readers can master how to use the array functions of the Go language to process array sums.

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