final.文件练习题

给定一个文件，将其复制到/tmp目录下

sourceFile = '/var/log/messages'
targetFile = '/tmp/copy_messages'

with open(sourceFile, 'r') as oldFile:
    result = oldFile.readlines()
    with open(targetFile, 'w') as newFile:
        for lines in result:
            newFile.write(lines)

给定一个文件，统计其中关键字出现的次数并且排序

fileName = "/opt/Workspace/redis.conf"
wordDict = {}
removeList = ['', 'a', 'I',
              'be', 'is', 'of', 'in', 'on', 'or', 'to', 'if', 'it', 'at', 'me', 'by','as',
              'the', 'The', 'and', 'are', 'for', 'not', 'but', 'can', 'may', 'you',
              'this', 'that', 'will', 'with', 'when'
              ]

with open(fileName, 'r', encoding='utf-8') as myFile:
    for lines in myFile:
        words = lines.split()
        for word in words:
            word = word.strip(' .#')
            wordDict[word] =  wordDict.get(word, 0) + 1
for item in removeList:
    wordDict.pop(item, None)
result = sorted(wordDict.items(), key=lambda i: i[1], reverse=True)[0:10]
print(result)