python 练习
继承

#-*- coding:UTF-8-*-import timef = file('G:\\PyWk\\finally.py') #这个很受不了，很多书和资料照搬国外 有错误都不改变try:#f = file('G:\\PyWk\\finally.py') 原来在这个位置while True:line = f.readline()if len(line) == 0:breaktime.sleep(0.33)print line,#end of whilefinally:f.close()print 'Closed the file.'#end of try