本文共 5393 字，大约阅读时间需要 17 分钟。

# 1.下面的log变量记录了云服务器上 当天上传的文件信息# 其中第一列是文件名，第二列是文件大小# # 请编写一个程序，统计出不同类型的 文件的大小总和# 比如：# jpeg  9988999# json   324324# png   2423233# ----------------------------------log = '''f20180111014341/i_51a7hC3W.jpeg	169472	FrITJxleSP7wUD-MWw-phL_KP6Eu	15156063244230469	image/jpeg	0	f20180111014341/j_R0Hpl4EG.json	1036	ForGzwzV3e-uR3_UzvppJs1VgfQG	15156064773253144	application/json	0	f20180111020739/i_0TDKs0rD.jpeg	169472	FrITJxleSP7wUD-MWw-phL_KP6Eu	15156076847077556	image/jpeg	0	f20180111020739/j_JFO6xiir.json	1040	FmUhTchdLOd7LBoE8OXzPLDKcW60	15156077904192983	application/json	0	f20180111090619/i_1BwNksbL.jpg	49634	FtXBGmipcDha-67WQgGQR5shEBu2	15156329458714950	image/jpeg	0	f20180111090619/i_3BKlsRaZ.jpg	30152	FoWfMSuqz4TEQl5FT-FY5wqu5NGf	15156330575626044	image/jpeg	0	f20180111090619/i_5XboXSKh.jpg	40238	Fl84WaBWThHovIBsQaNFoIaPZcWh	15156329453409855	image/jpeg	0	f20180111090619/i_6DiYSBKp.jpg	74017	FrYG3icChRmFGnWQK6rYxa88KuQI	15156329461803290	image/jpeg	0	f20180111090619/i_76zaF2IM.jpg	38437	Fui8g5OrJh0GQqZzT9wtepfq99lJ	15156334738356648	image/jpeg	0	f20180111090619/i_B6TFYjks.jpg	37953	FleWqlK2W1ZmEgAatAEcm1gpR0kC	15156329464034474	image/jpeg	0	f20180111090619/i_N9eITqj3.jpg	38437	Fui8g5OrJh0GQqZzT9wtepfq99lJ	15156330419595764	image/jpeg	0	f20180111090619/i_QTSNWmA6.jpg	37953	FleWqlK2W1ZmEgAatAEcm1gpR0kC	15156333104224056	image/jpeg	0	f20180111090619/i_XdHcAfh1.jpg	56479	FjLQIQ3GxSEHDfu6tRcMylK1MZ05	15156334227270309	image/jpeg	0	f20180111090619/i_Xyy723MU.jpg	50076	FsfZpQzqu084RUw5NPYW9-Yfam_R	15156334229987458	image/jpeg	0	f20180111090619/i_d8Go0EOv.jpg	30152	FoWfMSuqz4TEQl5FT-FY5wqu5NGf	15156334736228515	image/jpeg	0	f20180111090619/i_diuHmX53.jpg	40591	FuTx1pw4idbKnV5MSvNGxCA5L470	15156333878320713	image/jpeg	0	f20180111090619/i_qQKzheSH.jpg	55858	Fj0A3i8V7fzzOiPQFL79ao15hkN9	15156329456666591	image/jpeg	0	f20180111090619/i_rHL5SYk8.jpg	40238	Fl84WaBWThHovIBsQaNFoIaPZcWh	15156336509742181	image/jpeg	0	f20180111090619/i_xZmQxUbz.jpg	40238	Fl84WaBWThHovIBsQaNFoIaPZcWh	15156333240603466	image/jpeg	0	f20180111090619/i_zBDNgXDv.jpeg	73616	FlgNwq8lypgsxrWs_ksrS_x47SQV	15156334232887875	image/jpeg	0	f20180111090619/j_4mxbEiVh.json	2990	Fpq-3yl3Yr1CadNrJVSDnpeRhQtT	15156331445226898	application/json	0	f20180111090619/j_i1K74768.json	3042	Fl5PpDw1TsZXMuhoq1RUrOeGZ6br	15156335067090003	application/json	0	f20180111095839/i_Q7KMKeda.png	518522	Fl-yB1_ruL2uxZN9k7DjB62h9dYH	15156359599713253	image/png	0	f20180111095839/j_5DpqHolV.json	184	FoYvi7cmSrzuVjUgCRzW5kU95SVo	15156359719719064	application/json	0	f20180111100442/i_No8kToIV.jpg	48975	Fu1cw3f--5Vpz9kLGeJfvljhCtyZ	15156364349642377	image/jpeg	0	f20180111100442/i_P1bkvSeg.jpg	68200	FvYe8vi46TjUKhEy_UwDqLhO6ZsW	15156363800690634	image/jpeg	0	f20180111100442/i_T1AulKcD.jpg	52641	Fj2YzvdC1n_1sF93ZZgrhF3OzOeY	15156364021186365	image/jpeg	0	f20180111100442/i_X8d8BN07.jpg	50770	FivwidMiHbogw77lqgkIKrgmF3eA	15156363969737156	image/jpeg	0	f20180111100442/i_g0wtOsCX.jpg	76656	Fmtixx0mP9CAUTNosjLuYQHL6k0P	15156363448222155	image/jpeg	0	f20180111100442/i_h5OT9324.jpg	72672	FvbIqPLTh2cQHTIBv2akUfahZa_Z	15156364401354652	image/jpeg	0	f20180111100442/i_he8iLYI6.jpg	49399	FjeJvwjwhU-hKZsq66UoBg9_tEJs	15156363907932480	image/jpeg	0	f20180111100442/i_kg29t7Pp.jpg	76293	FuYj__sSeEN7AsXMbxO24Z8Suh8d	15156364156384686	image/jpeg	0	f20180111100442/i_oz1YoBI1.jpg	75620	FkY3xsUMwOI01zgoH1iXXgiQeq6I	15156364089112904	image/jpeg	0	f20180111100442/i_xrOT98on.jpg	50021	Fql7ookM1Rc6V7VairKAfnKe-o9w	15156363856357316	image/jpeg	0	f20180111135114/i_Zqt8Tmoe.png	161629	FlELw59_mV3VqDBLyu1BKN4fIWnx	15156500155209863	image/png	0	f20180111135114/j_uhHoMXKq.json	159	FrypljwAr2LgoLAePBNTUYTUAgDt	15156500200488238	application/json	0	f20180111142119/i_s83iZ2GR.png	92278	Fns8tdh3JCkRmfE_COYEu4o8w03E	15156517082371259	image/png	0	f20180111142119/j_0g45JRth.json	159	Fq1rFwdRguYRXrp61nGZ5TsUG1V-	15156517143375596	application/json	0	f20180111144306/i_yE5TC84E.png	139230	Fjf61ymabEnEvnr5ZMHFjXGCrYlP	15156530038824150	image/png	0	f20180111144306/j_OF4WVtSH.json	159	FqwkKcxfo8jd0jFUyuH4X2CrnE9q	15156530083419530	application/json	0	f20180111150230/i_KtnER4g3.png	120044	FuwOWdrqzcr2-UScem-LzEMgMezs	15156541734892258	image/png	0	f20180111150230/j_xMSUEejY.json	158	FjJr_4deMqFphGaptm-2Pa6wwRP2	15156541771989216	application/json	0	f20180111151741/i_JuSWztB3.jpg	92506	FrIjRevHSi6xv4-NQa2wrHu5a1zQ	15156550875370965	image/jpeg	0	f20180111153550/i_9wWzVenl.gif	769872	FvslKY9JUaCQm-lu02E34tvAP_oG	15156561674621628	image/gif	0	'''#方法一：用字典来计文件大小# dic = {}# str_lines = log.split('\n')# for one in str_lines:#     if one !='':#         file_name,file_size = one.split('\t')[:2]#         file_type = file_name.split('.')[-1]#         file_size = int(file_size)#         if file_type not in dic:#             dic[file_type] = file_size#         else:#             dic[file_type] += file_size# for k,v in dic.items():#     print(k,v)#方法二：用嵌套列表来计文件大小filetypelist=[]def getrecordsize(file_type,file_size):    for i in filetypelist:        if file_type == i[0]:            i[1] += file_size            return    filetypelist.append([file_type, file_size])    str_lines = log.split('\n')for one in str_lines:    if one !='':        file_name,file_size = one.split('\t')[:2]        file_type = file_name.split('.')[-1]        file_size = int(file_size)        getrecordsize(file_type,file_size)for i in filetypelist:    print(i[0],i[1])

转载地址：http://wjhof.baihongyu.com/