python實現人性化顯示金額數字例項詳解
阿新 • • 發佈:2020-09-27
我們在開發過程中,有時候需要把float,int型等數字作為金額型別數字顯示會出現很多問題,比如float會顯示成 965868.4599999,int型沒有小數位等各種各樣的問題。我們需要進行轉換顯示,才能保證閱讀人性化。
方法一:
這裡只貼上主要程式碼:
#金額人性化 defhumanized_amount(self,*args,**kwargs): """ 金額人性化,保留二位小數,再進行人性化顯示 compel強制二位,預設True, """ ifnotCheckData(self.__mark).is_int_or_float: return{"code":"0001","msg":"必須傳入數字","data":None} else: figure=float(self.__mark) #保留二位小數 figure="{:.2f}".format(figure) #人性化顯示 figure="{:,}".format(float(figure)) ifkwargs.get("compel",True): #進行處理,保留二位小數,如果不足二位補領 figure_list=figure.split(".") iflen(figure_list[1])==1: figure+="0" returnfigure
方法二:利用xToolkit庫
安裝方法:
pipinstallxToolkit-ihttp://pypi.douban.com/simple--trusted-hostpypi.douban.com
xToolkit庫是我自己封裝的python內建庫的一個擴充套件庫.把python的datetime,string,list,dist,xthread等資料結構進行了功能的擴充套件。
使用方法比較簡單,一行程式碼即可搞定
#金額人性化,保留二位小數 xstring.dispose(3.0).humanized_amount(compel=False) xstring.dispose("3.0").humanized_amount(compel=True) xstring.dispose(37787841.902).humanized_amount(compel=False) xstring.dispose("37787841.902").humanized_amount(compel=True) xstring.dispose(378978989).humanized_amount(compel=False) xstring.dispose("378978989").humanized_amount(compel=True) >>3.0 >>3.00 >>37,787,841.9 >>37,841.90 >>378,978,989.0 >>378,989.00
例項擴充套件:
用python實現把數字人民幣金額轉換成大寫的指令碼程式
# -*- coding: utf-8 -*- def Num2MoneyFormat( change_number ): """ .轉換數字為大寫貨幣格式( format_word.__len__() - 3 + 2位小數 ) change_number 支援 float,int,long,string """ format_word = ["分","角","元","拾","百","千","萬","億","兆"] format_num = ["零","壹","貳","叄","肆","伍","陸","柒","捌","玖"] if type( change_number ) == str: # - 如果是字串,先嚐試轉換成float或int. if '.' in change_number: try: change_number = float( change_number ) except: raise ValueError,'%s can\'t change'%change_number else: try: change_number = int( change_number ) except: raise ValueError,'%s can\'t change'%change_number if type( change_number ) == float: real_numbers = [] for i in range( len( format_word ) - 3,-3,-1 ): if change_number >= 10 ** i or i < 1: real_numbers.append( int( round( change_number/( 10**i ),2)%10 ) ) elif isinstance( change_number,(int,long) ): real_numbers = [ int( i ) for i in str( change_number ) + '00' ] else: raise ValueError,'%s can\'t change'%change_number zflag = 0 #標記連續0次數,以刪除萬字,或適時插入零字 start = len(real_numbers) - 3 change_words = [] for i in range(start,-1): #使i對應實際位數,負數為角分 if 0 <> real_numbers[start-i] or len(change_words) == 0: if zflag: change_words.append(format_num[0]) zflag = 0 change_words.append( format_num[ real_numbers[ start - i ] ] ) change_words.append(format_word[i+2]) elif 0 == i or (0 == i%4 and zflag < 3): #控制 萬/元 change_words.append(format_word[i+2]) zflag = 0 else: zflag += 1 if change_words[-1] not in ( format_word[0],format_word[1]): # - 最後兩位非"角,分"則補"整" change_words.append("整") return ''.join(change_words) print Num2MoneyFormat( 343.45 )
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