Python编程——IO(输入输出)

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#-*- coding=utf-8 -*-#io: file#create, read, write, delete, etc.poem = '''\Programming is funWhen the work is doneif you wanna make your work also fun:use Python!'''f = file('poem.txt', 'w')  #open for 'w'ritingf.write(poem)  # write text to filef.close()  # close the filef = file('poem.txt')  # if no mode is specified, 'r'ead mode is assumed by defaultwhile True:line = f.readline()if len(line) == 0:  # 0 length indicates EOFbreakprint line,  # Notice comma to avoid automatic newline added by Pythonf.close()  # close the file'''summary:1）文件的打开模式：读模式（'r'）、写模式（'w'）、追加模式（'a'）2）文件方法：file()read()readline() : readline方法读文件的每一行，方法返回包括行末换行符的一个完整行write()close()技巧：1）在print语句上使用逗号来消除自动换行'''

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