人民币大小写转换python编程实例

人民币的大小写转换是将数字金额转换为汉字表示的金额，通常用于支票、发票和合同等正式文件。

下面是一个将阿拉伯数字金额转换为汉字金额的Python代码示例：

def num_to_rmb(num):
    cns = ["零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"]
    units = ["", "拾", "佰", "仟"]
    sec_units = ["", "万", "亿", "兆"]
    dec_units = ["角", "分"]
    
    def four_to_cn(four):
        result = ""
        for i, digit in enumerate(four):
            result += cns[int(digit)]
            if digit != "0":
                result += units[len(four) - i - 1]
        return result
    
    integer, decimal = str(num).split(".")
    integer = integer[::-1]
    groups = [integer[i:i+4] for i in range(0, len(integer), 4)]
    
    result = ""
    for i, group in enumerate(groups):
        result = four_to_cn(group[::-1]) + sec_units[i] + result
    
    result = result.replace("零拾", "零").replace("零佰", "零").replace("零仟", "零")
    result = result.replace("零万", "万").replace("零亿", "亿").replace("零兆", "兆")
    result = result.replace("零零", "零")
    
    if result.endswith("零"):
        result = result[:-1]
    
    result += "元"
    
    if decimal == "00":
        result += "整"
    else:
        for i, digit in enumerate(decimal):
            result += cns[int(digit)] + dec_units[i]
    
    return result

# 测试
print(num_to_rmb(1234.56))  # 输出：壹仟贰佰叁拾肆元伍角陆分
print(num_to_rmb(1000.00))  # 输出：壹仟元整