数字转汉字

def num2chinese(n):
chinese = ""
num_list = list("零一二三四五六七八九十")
pos1 = list("十百千")
pos2 = list("万亿兆")
n_str = str(n)
if len(n_str)>16:
print("数字超出范围")
return -1
str_list = []
while len(n_str)>0:
str_list.insert(0, n_str[-4:])
n_str = n_str[:-4]
zero_flag = False
flag = False
for cut_num in str_list:
pos2 = pos2[:(len(str_list)-1)]
if cut_num=="0000":
zero_flag = True
if pos2:
pos2.pop()
continue
if zero_flag:
chinese += "零"
if 0<int(cut_num)<=10:
if cut_num[0]=="0":
chinese += "零"
chinese += num_list[int(cut_num)]
if pos2:
chinese += pos2.pop()
continue
pos_1 = pos1[:(len(cut_num)-1)]
for num in cut_num:
if num=="0":
flag = True
if pos_1:
pos_1.pop()
continue
if flag:
chinese += "零"
chinese += num_list[int(num)]
if pos_1:
chinese += pos_1.pop()
if pos2:
chinese += pos2.pop()
if chinese[0:2]=="一十":
chinese = chinese[1:]
return chinese

第二种实现

def num2chinese(n):
danwei = list(" 十百千万十百千亿十百千兆十百千")
num_chinese = list("零一二三四五六七八九")
chinese=""
n2str = str(n)
length = len(n2str)
for i, v in enumerate(n2str):
chinese += num_chinese[int(v)] + danwei[length-i-1]
chinese = chinese[1:] if chinese[:2]=="一十" else chinese
zero_flag = False
new_chinese = ""
for x in chinese:
if x=="零" and not zero_flag:
zero_flag = True
new_chinese += "零"
continue
if x =="零" and zero_flag:
continue
if zero_flag and x in num_chinese:
zero_flag = False
if zero_flag and x in ("十", "百", "千"):
continue
if zero_flag and x in ("兆","亿","万"):
new_chinese = new_chinese[:-1]
zero_flag = False
new_chinese += x
new_chinese = new_chinese.replace("亿万","亿")
new_chinese = new_chinese.replace("兆亿","兆")
new_chinese = new_chinese.strip().strip("零")
return new_chinese