# name, age, scoretom, 12, 86Lee, 15, 99Lucy, 11, 58Joseph, 19, 56

  1 #-*-coding:utf-8 -*-  2   3 # (1) judge leap year  4 def judge_leap_year(n):  5     # if n%4 == 0 and n%100 != 0:  6     #     return True  7     # if n%100 == 0 and n%400 == 0:  8     if (n%4 == 0 and n%100 != 0) or (n%100 == 0 and n%400 == 0):  9         return True 10     else: 11         return False 12  13 # =================================================================== 14 # (2) computing the sum days of any day(**.**.**) 15 def compute_year_counts(datestr): 16     # deal with these case: 17     # 2012.12.2 18     # 2012/12/2 19     # 2012-12-2 20     if datestr.find(‘.‘) > 0: date = datestr.split(‘.‘) 21     if datestr.find(‘/‘) > 0: date = datestr.split(‘/‘) 22     if datestr.find(‘-‘) > 0: date = datestr.split(‘-‘) 23  24     year = int(date[0]) 25     month = int(date[1]) 26     day = int(date[2]) 27     if (month < 1 or month > 12): 28         print "the error month!" 29         return -1 30     if (day > 31): 31         print "the error day!" 32         return -1 33  34     days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] 35  36     # nDays = 0 37     # i = 1 38     # while i < month: 39     #     nDays += days[i-1] 40     #     i = i + 1 41     nDays = sum(days[i] for i in range(0, month - 1)) 42     if (judge_leap_year(year)): 43         nDays += 1 44     return nDays + day  45  46 datestring = raw_input("input the datetime info:-->") 47 print compute_year_counts(datestring) 48  49 # =================================================================== 50 # (3) read and write file: use class if perfect! 51 class UserProfier(object): 52     def __init__(self, name, age, score): 53         self.name = name 54         self.age = age  55         self.score = score 56  57 def read_file_and_anlysis(filetext): 58     line_read = [] 59     user_scores = [] 60     has_invalid_name = False #the invalid name 61  62     for line in filetext: 63         if not line.startswith(‘#‘) and len(line.strip()) != 0: 64             if line[0].islower(): 65                 line = line[0].upper() + line[1:] 66                 has_invalid_name = True 67             cur = line.strip().split(‘, ‘) 68             user_scores.append(UserProfier(cur[0], int(cur[1]), int(cur[2]))) 69             line_read.append(line) 70     # print the file 71     print "print the file" 72     for i in line_read: 73         print i 74     # statistic the score < 60 75     print "users whose score lower 60:" 76     for scores in filter(lambda s: s.score < 60 , user_scores): 77         print scores.name 78     # statistic the begin of name which is ‘L‘ 79     print "users whose name‘s begin is ‘L‘:" 80     for names in filter(lambda s: s.name.startswith(‘L‘), user_scores): 81         print names.name 82     # statistic the total scores of all one 83     print "the total scores of everyone:" 84     allscores = map(lambda s:s.score, user_scores) 85     print allscores 86     print reduce(lambda x, y: x+y, allscores, 0) 87  88 # open the file  89 with open("record.txt") as f: 90     read_file_and_anlysis(f) 91  92 # =================================================================== 93 # (4) the useful example of regular expression 94 import os, re, datetime 95  96 filename = "output_1981.10.21.txt" 97  98 date_time = re.search("(?P<year>\d{4})\.(?P<month>\d{2})\.(?P<day>\d{2})\.", filename) 99 100 year = date_time.group(‘year‘)101 month = date_time.group(‘month‘)102 day = date_time.group(‘day‘)103 104 print year, month, day105 date = datetime.date(int(year), int(month), int(day))106 w = date.weekday() + 1107 W = str(w)108 os.rename(filename, "output_"+year+‘-‘+month+‘-‘+day+‘-‘+str(w)+".txt")