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

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 27

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
e.g.1
# 030
aFile = file(r'C:\temp.txt', 'a')
aFile.write('ÓÖÌí¼ÓÁËÒ»ÐС£')
aFile.close()

output:
e.g.2
# 030
aFile = file(r'C:\temp.txt', 'a')
aFile.write('ÓÖÌí¼ÓÁËÒ»ÐС£')
aFile.close()

output:
e.g.3
ʵÏÖ¸ù¾ÝԭʼÎļþÓÐûÓÐ×îºóÒ»ÐпÕÐеÄÇé¿öÀ´½øÐГÍêÃÀÌí¼Ó”¡£
# 031
aFile = file(r'C:\temp.txt', 'r')
lastLine = ''
while True:
line = aFile.readline()
if len(line) == 0:
break
# end of if
lastLine = line
# end of while
aFile.close()
aFile = file(r'C:\temp.txt', 'a')
if not lastLine.endswith('\n'): # ˵Ã÷Ô´ÎļþûÓÐÒ»¸ö¿ÕÐУ¬ÐèÒªÖØÐÂÁíÆðÒ»ÐÐ
aFile.write('\n')
# end of if
aFile.write('ÕâÊÇÐÂÌí¼ÓµÄÒ»ÐУ¡')
aFile.close()

´ËʱÎÞÂÛԭʼÎļþÊÇe.g.1µÄÑù×Ó»¹ÊÇe.g.2µÄÑù×Ó£¬½á¹û¶¼ÊÇ£º


Ïà¹ØÎĵµ£º

£¨×ª£©Python×Ö·û´®µÄencodeÓëdecode isinstance

Ê×ÏÈÒª¸ãÇå³þ£¬×Ö·û´®ÔÚPythonÄÚ²¿µÄ±íʾÊÇunicode±àÂ룬Òò´Ë£¬ÔÚ×ö±àÂëת»»Ê±£¬Í¨³£ÐèÒªÒÔunicode×÷ΪÖмä±àÂ룬¼´ÏȽ«ÆäËû±àÂëµÄ×Ö·û´®½âÂ루decode£©³Éunicode£¬ÔÙ´Óunicode±àÂ루encode£©³ÉÁíÒ»ÖÖ±àÂë¡£
decodeµÄ×÷ÓÃÊǽ«ÆäËû±àÂëµÄ×Ö·û´®×ª»»³Éunicode±àÂ룬Èçstr1.decode('gb2312')£¬±íʾ½«gb2312±àÂëµÄ×Ö·û´®×ª»»³ ......

PythonÈëÃŵÄ36¸öÀý×Ó——15 ĬÈϲÎÊý

# 015
# ĬÈϲÎÊýµÄ±¾ÖÊÊÇ:
# ²»ÂÛÄãÊÇ·ñÌṩ¸øÎÒÕâ¸ö²ÎÊý,ÎÒ¶¼ÊÇÒªÓÃËü,
# ÄÇôÎÒ¾ÍÒªÏëºÃÔÚÄã²»ÏòÎÒÌṩ²ÎÊýµÄʱºòÎÒ¸ÃʹÓÃʲô¡£
# »òÕߣ¬ÕâÑùÀ´Àí½â£º
# ÓÐһЩ²ÎÊýÔÚÒ»°ãÇé¿öÏÂÊÇÔ¼¶¨Ë׳ɵģ¬
# µ«£¬ÔÚ¼«ÉÙÇé¿öÏ»áÓÐһЩºÜÓиöÐÔµÄÈË»á´òÆÆ´«Í³¶ø°´ÕÕ×Ô¼ºµÄϰ¹ßÀ´×öÊÂ
def theFirstDayInAWeek(theDay = 'Sunda ......

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® 21

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 024
dict1 = {
'5064001':'Mememe',
'5064002':'tutu',
'5064003':'thrthr',
'5064004':'fofo'
}
print dict1['5064003']
# Ò²¿ÉÒÔʹÓÃÕûÐÍ×÷ΪΨһµÄ±àºÅ
dict2 = {
5064001:'Mememe',
506400 ......

PythonÈëÃŵÄ36¸öÀý×Ó Ö® 25

Ô´´úÂëÏÂÔØ£ºÏÂÔØµØÖ·ÔÚÕâÀï
# 028
consoleInput = raw_input('ÇëÊäÈëµãʲô°É£º')
aFile = file(r'C:\out.txt', 'w')
aFile.write(consoleInput + '\n')
aFile.write('ÕâÀïÊǵڶþÐÐ')
aFile.close()

output£º
>>>
ÇëÊäÈëµãʲô°É£ºhaha
>>>
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ