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from typing import Union
#from proces import preprocess
from .conf import NUMBER_LOW_AN2CN, NUMBER_UP_AN2CN, UNIT_LOW_ORDER_AN2CN, UNIT_UP_ORDER_AN2CN
class An2Cn(object):
def __init__(self) -> None:
self.all_num = "0123456789"
self.number_low = NUMBER_LOW_AN2CN
self.number_up = NUMBER_UP_AN2CN
self.mode_list = ["low", "up", "rmb", "direct"]
def an2cn(self, inputs: Union[str, int, float] = None, mode: str = "low") -> str:
"""阿拉伯数字转中文数字
:param inputs: 阿拉伯数字
:param mode: low 小写数字，up 大写数字，rmb 人民币大写，direct 直接转化
:return: 中文数字
"""
if inputs is not None and inputs != "":
if mode not in self.mode_list:
raise ValueError(f"mode 仅支持 {str(self.mode_list)} ！")
# 将数字转化为字符串，这里会有Python会自动做转化
# 1. -> 1.0 1.00 -> 1.0 -0 -> 0
if not isinstance(inputs, str):
inputs = self.__number_to_string(inputs)
# 数据预处理：
# 1. 繁体转简体
# 2. 全角转半角
# inputs = preprocess(inputs, pipelines=[
# "traditional_to_simplified",
# "full_angle_to_half_angle"
# ])
# 检查数据是否有效
self.__check_inputs_is_valid(inputs)
# 判断正负
if inputs[0] == "-":
sign = "负"
inputs = inputs[1:]
else:
sign = ""
if mode == "direct":
output = self.__direct_convert(inputs)
else:
# 切割整数部分和小数部分
split_result = inputs.split(".")
len_split_result = len(split_result)
if len_split_result == 1:
# 不包含小数的输入
integer_data = split_result[0]
if mode == "rmb":
output = self.__integer_convert(integer_data, "up") + "元整"
else:
output = self.__integer_convert(integer_data, mode)
elif len_split_result == 2:
# 包含小数的输入
integer_data, decimal_data = split_result
if mode == "rmb":
int_data = self.__integer_convert(integer_data, "up")
dec_data = self.__decimal_convert(decimal_data, "up")
len_dec_data = len(dec_data)
if len_dec_data == 0:
output = int_data + "元整"
elif len_dec_data == 1:
raise ValueError(f"异常输出：{dec_data}")
elif len_dec_data == 2:
if dec_data[1] != "零":
if int_data == "零":
output = dec_data[1] + "角"
else:
output = int_data + "元" + dec_data[1] + "角"
else:
output = int_data + "元整"
else:
if dec_data[1] != "零":
if dec_data[2] != "零":
if int_data == "零":
output = dec_data[1] + "角" + dec_data[2] + "分"
else:
output = int_data + "元" + dec_data[1] + "角" + dec_data[2] + "分"
else:
if int_data == "零":
output = dec_data[1] + "角"
else:
output = int_data + "元" + dec_data[1] + "角"
else:
if dec_data[2] != "零":
if int_data == "零":
output = dec_data[2] + "分"
else:
output = int_data + "元" + "零" + dec_data[2] + "分"
else:
output = int_data + "元整"
else:
output = self.__integer_convert(integer_data, mode) + self.__decimal_convert(decimal_data, mode)
else:
raise ValueError(f"输入格式错误：{inputs}！")
else:
raise ValueError("输入数据为空！")
return sign + output
def __direct_convert(self, inputs: str) -> str:
_output = ""
for d in inputs:
if d == ".":
_output += "点"
else:
_output += self.number_low[int(d)]
return _output
@staticmethod
def __number_to_string(number_data: Union[int, float]) -> str:
# 小数处理：python 会自动把 0.00005 转化成 5e-05，因此 str(0.00005) != "0.00005"
string_data = str(number_data)
if "e" in string_data:
string_data_list = string_data.split("e")
string_key = string_data_list[0]
string_value = string_data_list[1]
if string_value[0] == "-":
string_data = "0." + "0" * (int(string_value[1:]) - 1) + string_key
else:
string_data = string_key + "0" * int(string_value)
return string_data
def __check_inputs_is_valid(self, check_data: str) -> None:
# 检查输入数据是否在规定的字典中
all_check_keys = self.all_num + ".-"
for data in check_data:
if data not in all_check_keys:
raise ValueError(f"输入的数据不在转化范围内：{data}！")
def __integer_convert(self, integer_data: str, mode: str) -> str:
if mode == "low":
numeral_list = NUMBER_LOW_AN2CN
unit_list = UNIT_LOW_ORDER_AN2CN
elif mode == "up":
numeral_list = NUMBER_UP_AN2CN
unit_list = UNIT_UP_ORDER_AN2CN
else:
raise ValueError(f"error mode: {mode}")
# 去除前面的 0，比如 007 => 7
integer_data = str(int(integer_data))
len_integer_data = len(integer_data)
if len_integer_data > len(unit_list):
raise ValueError(f"超出数据范围，最长支持 {len(unit_list)} 位")
output_an = ""
for i, d in enumerate(integer_data):
if int(d):
output_an += numeral_list[int(d)] + unit_list[len_integer_data - i - 1]
else:
if not (len_integer_data - i - 1) % 4:
output_an += numeral_list[int(d)] + unit_list[len_integer_data - i - 1]
if i > 0 and not output_an[-1] == "零":
output_an += numeral_list[int(d)]
output_an = output_an.replace("零零", "零").replace("零万", "万").replace("零亿", "亿").replace("亿万", "亿") \
.strip("零")
# 解决「一十几」问题
if output_an[:2] in ["一十"]:
output_an = output_an[1:]
# 0 - 1 之间的小数
if not output_an:
output_an = "零"
return output_an
def __decimal_convert(self, decimal_data: str, o_mode: str) -> str:
len_decimal_data = len(decimal_data)
if len_decimal_data > 16:
print(f"注意：小数部分长度为 {len_decimal_data} ，将自动截取前 16 位有效精度！")
decimal_data = decimal_data[:16]
if len_decimal_data:
output_an = "点"
else:
output_an = ""
if o_mode == "low":
numeral_list = NUMBER_LOW_AN2CN
elif o_mode == "up":
numeral_list = NUMBER_UP_AN2CN
else:
raise ValueError(f"error mode: {o_mode}")
for data in decimal_data:
output_an += numeral_list[int(data)]
return output_an
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