下面這段代碼:
# name, age, score tom, 12, 86 Lee, 15, 99 Lucy, 11, 58 Joseph, 19, 56
第一欄為姓名(name),第二欄為年紀(age),第三欄為得分(score)
現在,寫一個Python程序,
1 )讀取文件
2)列印以下結果:
得分低於60的人都有誰?
誰的名字以L開頭?
所有人的總分是多少?
3)姓名的首字母需要大寫,該record.txt是否符合此要求? 如何糾正錯誤的地方?
#read lines from file fobj = open('record.txt', 'r+') print 'opened file: ', fobj.name all_lines = fobj.readlines() fobj.close() lines = [l[:-1].split(', ') for l in all_lines if not l.startswith('#') and l.strip()] #list person who's score less than 60 print [s[0] for s in lines if int(s[2]) < 60] #list person who's name starts with 'L' print [s[0] for s in lines if s[0].startswith('L')] #compute the score of all person print sum([int(s[2]) for s in lines]) #write new lines contains capitalize name into file fobj = open('record2.txt', 'w+') print 'opend file: ', fobj.name newlines = [] for line in all_lines: if line[0].islower(): line = line.capitalize() newlines.append(line) print newlines if newlines: fobj.writelines(newlines) fobj.close()
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