/* 使用while循环遍历文件*/[root@localhost test1]# vim 17.py//add#!/usr/bin/pythonll = open(‘/tmp/1.txt‘)while True:    line = ll.readline()    if not line:        break    print line,[root@localhost test1]# python 17.pyabcsjdh

/* 另外一种写法，（常用），省去了去把变量关闭 */[root@localhost test1]# vim 17.py//add#!/usr/bin/pythonwith open(‘/tmp/1.txt‘) as ll:    while True:      line = ll.readline()      if not line:          break      print line,[root@localhost test1]# python 17.pyabcsjdh