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PythonÈëÃŵÄ36¸öÀý×Ó Ö® 29

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# 033
class Person:
age = 22
def sayHello(self): # ·½·¨Ó뺯ÊýµÄÇø±ðÔÚÓÚÐèÒªÒ»¸öself²ÎÊý
print 'Hello!'
# end of def
# end of class # ÕâÊÇÎÒÁ¼ºÃµÄ±à³Ì·ç¸ñ
p = Person()
print p.age
p.sayHello()

output£º
22
Hello!


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——05 ´ÏÃ÷µÄ±äÁ¿

# 005
# ÔÚPythonÖиø±äÁ¿¸³ÖµÊ±²»ÐèÒªÉùÃ÷Êý¾ÝÀàÐÍ
i = 33
print i
# ¿ÉÒÔÕâÑù×öµÄÔ­ÒòÊÇPython°Ñ³ÌÐòÖÐÓöµ½µÄÈκζ«Î÷¶¼¿´³ÉÊǶÔÏó(Á¬intÒ²²»ÀýÍâ)
# ÕâÑù,ÔÚʹÓöÔÏóʱ,±àÒëÆ÷»á¸ù¾ÝÉÏÏÂÎĵĻ·¾³À´µ÷ÓöÔÏó×ÔÉíµÄ·½·¨Íê³ÉÒþʽµÄת»»
# ÄãÉõÖÁ¿ÉÒ԰ѳÌÐòд³ÉÕâÑù
print 3 * 'haha '
# µ«Èôд³ÉÕâÑù±àÒëÆ÷¾Í»á±¨´í ......

PythonÈëÃŵÄ36¸öÀý×Ó——17 Return

# 017
def lifeIsAMirror():
string = raw_input()
if string == 'I love you!':
return 'I love you, too!'
elif string == 'Fuck you!':
return ''
else:
return
# end of def
string = lifeIsAMirror()
if len(string) == 0:
print 'You have nothing.'
else: ......

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® 27

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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´½øÐÐ&ldqu ......
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