字符串專(zhuān)題之中文大寫(xiě)金額數(shù)字轉(zhuǎn)換工具

def change(num):    max_num = 1000000000000  #最大轉(zhuǎn)換金額數(shù)    if num >= max_num:        return "數(shù)額太大，數(shù)字需低于一萬(wàn)億！"    units = "元拾佰仟萬(wàn)拾佰仟億拾佰仟萬(wàn)拾佰仟"    digits = "零壹貳叁肆伍陸柒捌玖"    num = f'{num:0.2f}'    integral, decimal =num.split(".")  #分成整數(shù)和小數(shù)兩個(gè)部分    ans = ""    flag =   ①              for i, d in enumerate(integral):   #處理整數(shù)部分        n = len(integral) - 1 - i #數(shù)字下標(biāo)從高位開(kāi)始數(shù)，單位下標(biāo)從低位開(kāi)始數(shù)        if d == "0":  #出現(xiàn)多個(gè)0時(shí)，并非輸出所有的"零",需特殊處理"億"和"萬(wàn)"位            if ((units[n]=="億" or units[n]=="萬(wàn)") and ((i>=1 and integral[i-1]!='0') or (i>=2 andintegral[i-2]!='0') or (i>=3 and integral[i-3]!='0'))):                ans += units[n]            flag = True        else:            if flag:                ans += "零"            ans +=   ②                   flag = False    if ans != "" and integral[-1] =="0":#個(gè)位為0的特殊情況        ans += "元"    if decimal == "00":               ans += "整"    elif decimal[1] == "0":        ans += digits[int(decimal[0])] + "角"    elif decimal[0] == "0":        ans += "零" + digits[int(decimal[1])] + "分"    else:        ans +=   ③      return "人民幣" + ans

def change2(num):    max_num = 1000000000000  #最大轉(zhuǎn)換金額數(shù)    if num >= max_num:        return "數(shù)額太大，數(shù)字需低于一萬(wàn)億！"    digits = ["零","壹","貳","叁","肆","伍","陸","柒","捌","玖"]    low_radices = ["","拾","佰","仟"]    high_radices = ["","萬(wàn)","億"]    num = f'{num:0.2f}'    integral, decimal = num.split(".")  #分成整數(shù)和小數(shù)兩個(gè)部分    ans = ""    zero_count = 0    for i, d in enumerate(integral):   #處理整數(shù)部分         ph, pl = divmod(len(integral) - 1 - i, 4) #萬(wàn)以下單位和萬(wàn)以上單位對(duì)應(yīng)下標(biāo)        if d == "0":            zero_count += 1        else:            if zero_count > 0:                ans += "零"            zero_count = 0            ans += digits[int(d)] + low_radices[pl]        if pl == 0 and zero_count < 4:            ans += high_radices[ph]    if ans != "":        ans += "元"    if decimal == "00":                ans += "整"    elif decimal[1] == "0":        ans += digits[int(decimal[0])] + "角"    elif decimal[0] == "0":        ans += "零" + digits[int(decimal[1])] + "分"    else:        ans += digits[int(decimal[0])] + "角" + digits[int(decimal[1])] + "分"    return "人民幣" + ans

def change3(num):    max_num = 1000000000000  #最大轉(zhuǎn)換金額數(shù)    if num >= max_num:        return "數(shù)額太大，數(shù)字需低于一萬(wàn)億！"    units = "分角元拾佰仟萬(wàn)拾佰仟億拾佰仟"    digit = "零壹貳叁肆伍陸柒捌玖"    zero = "整零元零零零萬(wàn)零零零億零零零" #零的讀法    num = f'{num:0.2f}'.replace('.', '') #去掉小數(shù)點(diǎn)    ans = ""    for i, c in enumerate(num[::-1]):        if c == '0':   #按照零的讀法拼接零            ans = zero[i] + ans        else:            ans = digit[int(c)] + units[i] + ans    #print(ans)    i = 1    while i < len(ans): #消除多余的零        if ans[i-1]=="零" and ans[i] in "億萬(wàn)零元整":            ans = ans[:i-1] + ans[i:]        else:            i += 1    ans = ans.replace('億萬(wàn)', '億') #消除'億萬(wàn)'的'萬(wàn)'    ans = ans.replace('角整', '角') #消除'角整'的'整'    if ans[0] == "元": ans = ans[1:]#消除多余的'元'    return "人民幣" + ans