Python Ôª×é(Tuple)²Ù×÷Ïê½â

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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
tup1 = ('physics', 'chemistry', 1997, 2000);
tup2 = (1, 2, 3, 4, 5 );
tup3 = "a", "b", "c", "d";

´´½¨¿ÕÔª×é
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
tup1 = ();

Ôª×éÖÐÖ»°üº¬Ò»¸öÔªËØÊ±£¬ÐèÒªÔÚÔªËØºóÃæÌí¼Ó¶ººÅÀ´Ïû³ýÆçÒå
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
tup1 = (50,);

Ôª×éÓë×Ö·û´®ÀàËÆ£¬Ï±êË÷Òý´Ó0¿ªÊ¼£¬¿ÉÒÔ½øÐнØÈ¡£¬×éºÏµÈ¡£
¶þ¡¢·ÃÎÊÔª×é
Ôª×é¿ÉÒÔʹÓÃϱêË÷ÒýÀ´·ÃÎÊÔª×éÖеÄÖµ£¬ÈçÏÂʵÀý:
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
#!/usr/bin/python

tup1 = ('physics', 'chemistry', 1997, 2000);
tup2 = (1, 2, 3, 4, 5, 6, 7 );

print "tup1[0]: ", tup1[0]
print "tup2[1:5]: ", tup2[1:5]
#ÒÔÉÏʵÀýÊä³ö½á¹û£º
#tup1[0]:  physics
#tup2[1:5]:  [2, 3, 4, 5]


Èý¡¢ÐÞ¸ÄÔª×é
Ôª×éÖеÄÔªËØÖµÊDz»ÔÊÐíÐ޸ĵ쬵«ÎÒÃÇ¿ÉÒÔ¶ÔÔª×é½øÐÐÁ¬½Ó×éºÏ£¬ÈçÏÂʵÀý:
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
#!/usr/bin/python

tup1 = (12, 34.56);
tup2 = ('abc', 'xyz');

# ÒÔÏÂÐÞ¸ÄÔª×éÔªËØ²Ù×÷ÊÇ·Ç·¨µÄ¡£
# tup1[0] = 100;

# ´´½¨Ò»¸öеÄÔª×é
tup3 = tup1 + tup2;
print tup3;
#ÒÔÉÏʵÀýÊä³ö½á¹û£º
#(12, 34.56, 'abc', 'xyz')


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Ôª×éÖеÄÔªËØÖµÊDz»ÔÊÐíɾ³ýµÄ£¬µ«ÎÒÃÇ¿ÉÒÔʹÓÃdelÓï¾äÀ´É¾³ýÕû¸öÔª×飬ÈçÏÂʵÀý:
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
#!/usr/bin/python

tup = ('physics', 'chemistry', 1997, 2000);

print tup;
del tup;
print "After deleting tup : "
print tup;


#ÒÔÉÏʵÀýÔª×鱻ɾ³ýºó£¬Êä³ö±äÁ¿»áÓÐÒì³£ÐÅÏ¢£¬Êä³öÈçÏÂËùʾ£º
#('physics', 'chemistry', 1997, 2000)
#After deleting tup :
#Traceback (most recent call last):
#  File "test.py", line 9, in <module>
#    print tup;
#NameError: name 'tup' is not defined[/code]
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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
L = ('spam', 'Spam', 'SPAM!')


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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
#!/usr/bin/python

print 'abc', -4.24e93, 18+6.6j, 'xyz';
x, y = 1, 2;
print "Value of x , y : ", x,y;


ÒÔÉÏʵÀýÔÊÐí½á¹û£º
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
abc -4.24e+93 (18+6.6j) xyz
Value of x , y : 1 2

°Ë¡¢Ôª×éÄÚÖú¯Êý
PythonÔª×é°üº¬ÁËÒÔÏÂÄÚÖú¯Êý
1¡¢cmp(tuple1, tuple2)£º±È½ÏÁ½¸öÔª×éÔªËØ¡£
2¡¢len(tuple)£º¼ÆËãÔª×éÔªËØ¸öÊý¡£
3¡¢max(tuple)£º·µ»ØÔª×éÖÐÔªËØ×î´óÖµ¡£
4¡¢min(tuple)£º·µ»ØÔª×éÖÐÔªËØ×îСֵ¡£
5¡¢tuple(seq)£º½«Áбíת»»ÎªÔª×é¡£

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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> classmates = ('Michael', 'Bob', 'Tracy')

ÏÖÔÚ£¬classmatesÕâ¸ötuple²»ÄܱäÁË£¬ËüҲûÓÐappend()£¬insert()ÕâÑùµÄ·½·¨¡£ÆäËû»ñÈ¡ÔªËØµÄ·½·¨ºÍlistÊÇÒ»ÑùµÄ£¬Äã¿ÉÒÔÕý³£µØÊ¹ÓÃclassmates[0]£¬classmates[-1]£¬µ«²»Äܸ³Öµ³ÉÁíÍâµÄÔªËØ¡£
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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> t = (1, 2)
>>> t
(1, 2)

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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> t = ()
>>> t
()

µ«ÊÇ£¬Òª¶¨ÒåÒ»¸öÖ»ÓÐ1¸öÔªËØµÄtuple£¬Èç¹ûÄãÕâô¶¨Ò壺
¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> t = (1)
>>> t
1

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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> t = (1,)
>>> t
(1,)

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¸´ÖÆ´úÂë ´úÂëÈçÏÂ:
>>> t = ('a', 'b', ['A', 'B'])
>>> t[2][0] = 'X'
>>> t[2][1] = 'Y'
>>> t
('a', 'b', ['X', 'Y'])

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