Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 28

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 032
# ÆäʵcPickleÕâ¸öÄ£¿éÆðµ½µÄ×÷ÓÿÉÒÔÓÓÍêÃÀµØÐ­µ÷ÁËÎļþÖеÄÄÚÈÝ£¨¶ÔÏ󣩺ʹúÂëÖеÄÒýÓÔÀ´ÐÎÈÝ
import cPickle as p # ÕâÌõÓï¾ä¸øcPickleÆðÁ˸öСÃûp
objectFileName = r'C:\Data.txt'
aList = [1, 2, 3]
f = file(objectFileName, 'w')
p.dump(aList, f)
f.close()
del aList # ÏÖÔÚÒѾ­Ã»ÓÐaListËùÖ¸µÄ¶ÔÏóÁË£¬ÉõÖÁûÓÐaListÕâ¸öÒýÓÃÁË
f = file(objectFileName, 'r')
storedObject = p.load(f)
print storedObject

output:
>>>
[1, 2, 3]
>>>
µ±È»£¬ÔÚÎļþÖУ¬Python²ÉÓÃÁËÒ»ÖÖ±ãÓÚ×Ô¼º·Ö±æ¶ÔÏóÀàÐ͵ĸñʽÀ´´æ´¢£º


Ïà¹ØÎĵµ£º

PythonÄ£¿éѧϰ

¡¡¡¡ÓÐʱºò£¬Òª°ÑÄÚ´æÖеÄÒ»¸ö¶ÔÏó³Ö¾Ã»¯±£´æµ½´ÅÅÌÉÏ£¬»òÕßÐòÁл¯³É¶þ½øÖÆÁ÷ͨ¹ýÍøÂç·¢Ë͵½Ô¶³ÌÖ÷»úÉÏ¡£PythonÖÐÓкܶàÄ£¿éÌṩÁËÐòÁл¯Óë·´ÐòÁл¯µÄ¹¦ÄÜ£¬È磺marshal, pickle, cPickleµÈµÈ¡£½ñÌì¾Í½²½²marshalÄ£¿é¡£
¡¡¡¡×¢Ò⣺
marshal²¢²»ÊÇÒ»¸öͨÓõÄÄ£¿é£¬ÔÚijЩʱºòËüÊÇÒ»¸ö²»±»ÍƼöʹÓõÄÄ£¿é£¬ÒòΪʹÓÃmarshalÐ ......

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 18

Àý1£º
# _018
# This is a module (if write Chinese in a module, there will be a error)
def func1():
print 'This is function 1.'
def func2():
print 'This is function 2.'
def func3():
print 'This is function 3.'
# 019
# ʹÓÓimport”Óï¾äµ÷ÓÃÄ£¿é£º
import _018_Module
_ ......

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 22

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 025
# ÐòÁеÄÉñÆæÖ®´¦ÔÚÓÚÄã¿ÉÒÔʹÓÃÏàͬµÄ·½Ê½tuple¡¢listºÍstring
se = ['a', 'b', 'c', 'd']
li = ['a', 'b', 'c', 'd']
tu = ('a', 'b', 'c', 'd')
string = 'abcd'
print se[1]
print li[1]
print tu[1]
print string[1]
# ÐòÁеÄÁíÍâÒ»¸öÉñÆæÖ®´¦ÔÚÓÚ£¬Äã¿ÉÒÔʹÓøºÊý½øÐÐË÷ ......

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 23

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 026
aList = ['1','2','3','4']
aListCopy = aList # Æäʵ£¬ÕâÀï½ö½ö¸´ÖÆÁËÒ»¸öÒýÓÃ
del aList[0]
print aList
print aListCopy # Á½¸öÒýÓÃÖ¸ÏòÁËÁËͬһ¸ö¶ÔÏó£¬ËùÒÔ´òÓ¡½á¹ûÒ»Ñù
aListCopy = aList[:] # ÕâÊǸ´ÖÆÕû¸ö¶ÔÏóµÄÓÐЧ·½·¨
del aList[0]
print aList
print aListCopy
......

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 26

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 029
aFile = file(r'C:\in.txt', 'r')
while True:
line = aFile.readline()
if len(line) == 0:
break
# end of if
print line,
# end of while
aFile.close()

output£º
>>>
This is the first line.
This is the second line.
This is ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ