编写一个函数，不用临时变量，直接交换numbers = [a, b]中a与b的值。
示例：
输入: numbers = [1,2]
输出: [2,1]提示：
numbers.length == 2- `-2147483647 <= numbers[i] <= 2147483647
//leetcode submit region begin(Prohibit modification and deletion)
class Solution {
public int[] swapNumbers(int[] numbers) {
return new int[] {numbers[1],numbers[0]};
}
}
//leetcode submit region end(Prohibit modification and deletion)
