人民币大小写转换python

在Python中，处理人民币金额的大小写转换通常涉及到数字和字符串的操作。以下是一个简单的示例，展示如何将数字形式的人民币金额转换为大写和小写汉字表示：

def digit_to_chinese(num):
    # 定义金额单位和对应的大写汉字
    units = {
        0: '零', 1: '壹', 2: '贰', 3: '叁', 4: '肆', 5: '伍', 
        6: '陆', 7: '柒', 8: '捌', 9: '玖'
    }
    tens = {
        0: '', 1: '拾', 2: '贰拾', 3: '叁拾', 4: '肆拾', 5: '伍拾', 
        6: '陆拾', 7: '柒拾', 8: '捌拾', 9: '玖拾'
    }
    hun = {
        0: '', 1: '佰', 2: '贰佰', 3: '叁佰', 4: '肆佰', 5: '伍佰', 
        6: '陆佰', 7: '柒佰', 8: '捌佰', 9: '玖佰'
    }

    def convert(num, unit_dict):
        result = ''
        while num > 0:
            result = unit_dict[num % 10] + result
            num = num // 10
        return result

    # 大写转换
    def big_to_chinese(num):
        return ''.join(units[i] for i in str(num)[::-1]) + hun[int(str(num)[-3])]

    # 小写转换
    def small_to_chinese(num):
        return ''.join(units[i] for i in str(int(num))) + tens[int(str(num)[-2:])]
    
    # 示例
    num = 123.45
    big_amount = f"人民币{big_to_chinese(int(num))}{('.' if num != int(num) else '')}{convert(int(num * 10), units)}分"
    small_amount = f"人民币{small_to_chinese(int(num))}{('.' if num != int(num) else '')}{convert(int(num * 10), units)}分"

    return big_amount, small_amount

# 使用方法
big, small = digit_to_chinese(123.45)
print(f"大写金额: {big}")
print(f"小写金额: {small}")