package cap3

var _numberTexts = []string{
    "zero", "one", "two", "three", "four",
    "five", "six", "seven", "eight", "nine",
}

// Ex14NumInput 输入数字，输出英文
func Ex14NumInput(num uint64, callback func(str string)) {
    digits := make([]uint8, 0, 20)
    for i := num; i >= 1; i /= 10 {
        digits = append(digits, uint8(i%10))
    }

    for i := len(digits) - 1; i >= 0; i-- {
        callback(_numberTexts[digits[i]])
    }
}

// Ex14StrInput 输入数字字符串，输出英文
func Ex14StrInput(num string, callback func(str string)) {
    for _, char := range num {
        callback(_numberTexts[char-48])
    }
}