用数组填充参数？

function sum(arr) {
  let sum = 0;
  for (let i = 0; i < arr.length; i++) {
    sum += arr[i];
  }
  return sum;
}

const numbers = [1, 2, 3, 4, 5];
const result = sum(numbers);
console.log(result); // 输出 15

public static int sum(int[] arr) {
  int sum = 0;
  for (int i = 0; i < arr.length; i++) {
    sum += arr[i];
  }
  return sum;
}

public static void main(String[] args) {
  int[] numbers = {1, 2, 3, 4, 5};
  int result = sum(numbers);
  System.out.println(result); // 输出 15
}