python面试题

# name, age, score
tom, 12, 86
lee, 15, 99
lucy, 11, 58
joseph, 19, 56

第一栏为姓名(name),第二栏为年纪(age),第三栏为得分(score)

现在,写一个python程序,

1)读取文件

2)打印如下结果:

得分低于60的人都有谁?

谁的名字以l开头?

所有人的总分是多少?

3)姓名的首字母需要大写,该record.txt是否符合此要求? 如何纠正错误的地方?

#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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