package cap3

// Ex7 低位到高位输出正整数的数字
func Ex7(num uint64, algoType AlgoType, callback func(digit uint8)) {
    switch algoType {
    case AlgoTypeRecursion:
        Ex7Recursion(num, callback)
    default:
        Ex7NoneRecursion(num, callback)
    }
}

func Ex7Recursion(num uint64, callback func(digit uint8)) {
    if num < 10 {
        callback(uint8(num))
    } else {
        callback(uint8(num % 10))
        Ex7Recursion(num/10, callback)
    }
}

func Ex7NoneRecursion(num uint64, callback func(digit uint8)) {
    for i := num; i >= 1; i /= 10 {
        callback(uint8(i % 10))
    }
}