题解 | #不用加减乘除做加法#

```function Add(num1, num2)
{
    // write code here
    //先通过异或运算得到不进位数据，再通过与运算+左移位1得到进位数据，再递归以上操作直至进位值为0
    while(num2){
        let bujinwei = num1 ^ num2
        let jinwei = (num1&num2)<<1
        num1 = bujinwei
        num2 = jinwei 
    }
    return num1
}
module.exports = {
    Add : Add
};