python 命令行参数，以及文件操作

1 #demo.py
2 #!/usr/bin/python 
3 import sys
4 
5 print sys.argv

 1 root@ubuntu-ceph-06:~/cp# python demo.py  11
 2 [‘demo.py‘， 11]
 3 #!/usr/bin/python 
 4 #encoding=utf-8
 5 import sys
 6 
 7 print sys.argv
 8 
 9 fd = open(‘./demo.py‘, ‘r‘)
10 while True:
11     line = fd.readline()
12     if not line:
13         break
14     line = line[:-1]    #有换行符，注意去掉最后一个字符
15     print line