直接上源码

def digital_to_chinese(digital):
    if not isinstance(digital, str):
        str_digital = str(digital)
    else:
        str_digital = digital
    chinese = {'1': '壹', '2': '贰', '3': '叁', '4': '肆', '5': '伍', '6': '陆', '7': '柒', '8': '捌', '9': '玖', '0': '零'}
    left_chinese = ['', '拾', '佰', '仟']  # 小数点左边
    left_chinese2 = ['', '万', '亿', '兆']  # 扩展位
    right_chinese = ["角", "分", "毫", "厘"]  # 小数点右边
    leftStr, rightStr = "", ""
    if '.' in str_digital:
        leftStr, rightStr = str_digital.split('.')
    else:
        leftStr = str_digital
    leftStrArr = []
    if leftStr:
        leftStrArr = [chinese[v] for v in leftStr]
        leftStrArr.reverse()
        for i in range(0, len(leftStrArr)):
            index = i // 4
            index2 = i % 4
            if index2 == 0:
                if leftStrArr[i] != "零":
                    leftStrArr[i] += left_chinese2[index]
            if index2 > 0:
                if leftStrArr[i] != "零":
                    leftStrArr[i] += left_chinese[index2]
        leftStrArr.reverse()
        leftStrArr.append("元")
    rightStrArr = []
    if rightStr:
        rightStrArr = [chinese[v] for v in rightStr]
        for i in range(0, len(rightStrArr)):
            index = i % 3
            if rightStrArr[i] != "零":
                rightStrArr[i] += right_chinese[index]
    else:
        rightStrArr.append("整")
    return ''.join(leftStrArr) + ''.join(rightStrArr)

执行代码
···
print(digital_to_chinese(“5203.103”))
···
结果
···
伍仟贰佰零叁元壹角零叁毫
···