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Á½Õß¾ùÐè import os
(1) os.system
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system(command) -> exit_status
Execute the command (a string) in a subshell.
# Èç¹ûÔÙÃüÁîÐÐÏÂÖ´ÐУ¬½á¹ûÖ±½Ó´òÓ¡³öÀ´
>>> os.system('ls')
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11.wmv books downloads Pictures python
all-20061022 Desktop Examples project tools
(2) os.popen
# ¸Ã·½·¨²»µ«Ö´ÐÐÃüÁ·µ»ØÖ´ÐкóµÄÐÅÏ¢¶ÔÏó
popen(command [, mode='r' [, bufsize]]) -> pipe
Open a pipe to/from a command returning a file object.
ÀýÈ磺
>>>tmp = os.popen('ls *.py').readlines()
>>>tmp
Out[21]:
['dump_db_pickle.py\n',
'dump_db_pickle_recs.py\n',
'dump_db_shelve.py\n',
'initdata.py\n',
'__init__.py\n',
'make_db_pickle.py\n',
'make_db_pickle_recs.py\n',
'make_db_shelve.py\n',
'peopleinteract_query.py\n',
'reader.py\n',
'testargv.py\n',
'teststreams.py\n',
'update_db_pickle.py\n',
'writer.py\n']
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cur = con.cursor()
count = cur.execute("select * from test")
print count
data = cur.fetchall()
print data
for d in data:
print d
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