python×ÖµäÅÅÐò
python×ÖµäÅÅÐò
1¡¢
×¼±¸ÖªÊ¶£º
ÔÚpythonÀ×ÖµädictionaryÊÇÄÚÖõÄÊý¾ÝÀàÐÍ£¬ÊǸöÎÞÐòµÄ´æ´¢½á¹¹£¬Ã¿Ò»ÔªËØÊÇkey-value¶Ô£º
È磺dict = {‘username’£º‘password’£¬‘database’£º‘master’}£¬ÆäÖБusername’ºÍ‘database’ÊÇkey£¬¶ø‘password’ºÍ‘master’ÊÇvalue£¬¿ÉÒÔͨ¹ýd[
key
]»ñµÃ¶ÔÓ¦ÖµvalueµÄÒýÓ㬵«ÊDz»ÄÜͨ¹ývalueµÃµ½key¡£
¶ÔÓÚdictionnary£¬ÐèÖªµÀÒÔϼ¸µã×¢ÒâÊÂÏ
a¡¢
dictionary µÄ key ÊÇ´óСдÃô¸ÐµÄ
£»
b¡¢
Ò»¸ödictionaryÖв»ÄÜÓÐÖØ¸´µÄ key
£»
c¡¢
d
ictionary
ÊÇÎÞÐòµÄ£¬Ã»ÓÐÔªËØË³ÐòµÄ¸ÅÄ
ËüÃÇÖ»ÊÇÐòżµÄ¼òµ¥ÅÅÁÐ
¡£
2¡¢
×ÖµäÅÅÐòʵÏÖ£º
²Î¼ûcookbook£¬
Recipe 5.1. Sorting a Dictionary
½²ÊöÁË×ÖµäÅÅÐòµÄ·½·¨£»
Ç°ÃæÒÑ˵Ã÷d
ictionary
±¾ÉíûÓÐ˳Ðò¸ÅÄµ«ÊÇ×ÜÊÇÔÚijЩʱºò£¬µ«ÊÇÎÒÃdz£³£ÐèÒª¶Ô×ֵ佸ÐÐÅÅÐò£¬Ôõô×öÄØ£¿ÏÂÃæ¸æËßÄ㣺
·½·¨1£º
×î¼òµ¥µÄ·½·¨£¬
ÅÅÁÐÔªËØ£¨key/value¶Ô£©
£¬
È»ºóÌô³öÖµ
¡£
×ÖµäµÄ
items
·½·¨£¬»á·µ»ØÒ»¸öÔª×éµÄÁÐ±í£¬ÆäÖÐÿ¸öÔª×é¶¼°üº¬Ò»¶ÔÏîÄ¿——¼üÓë¶ÔÓ¦µÄÖµ
¡£´ËʱÅÅÐò¿ÉÒÔ
sort()·½·¨
¡£
def
sortedDictValues1(adict):
items = adict.items()
items.sort()
return
[value for
key, value in
items]
·½·¨2£º
ʹÓÃÅÅÁмü
£¨key£©
µÄ·½Ê½£¬Ìô³öÖµ£¬Ëٶȱȷ½·¨1¿ì¡£
×Öµä¶ÔÏóµÄkeys()·½·¨·µ»Ø×ÖµäÖÐËùÓмüÖµ×é³ÉµÄÁÐ±í£¬´ÎÐòÊÇËæ»úµÄ¡£ÐèÒªÅÅÐòʱֻҪ¶Ô·µ»ØµÄ¼üÖµÁбíʹÓÃsort()·½·¨
¡£
def
sortedDictValues1(adict):
keys = adict.keys()
keys.sort()
return
[adict[key] for
key in
keys]
·½·¨3£º
ͨ¹ýÓ³ÉäµÄ·½·¨È¥¸üÓÐЧµÄÖ´ÐÐ×îºóÒ»²½
def
sortedDictValues1(adict):
keys = adict.keys()
keys.sort()
return
map£¨
adict.get,keys£©
·½·¨4£º
¶Ô×ֵ䰴¼üÅÅÐò£¬ÓÃÔª×éÁбíµÄÐÎʽ·µ»Ø£¬Í¬Ê±Ê¹ÓÃlambdaº¯ÊýÀ´½øÐУ»
sorted
(iterable
[
, cmp
[
Ïà¹ØÎĵµ£º
ÏеÄÎÞÁľͿ´ÁËÒ»µã¹ØÓÚpythonµÄ»ù´¡ÖªÊ¶£¬µ±Ê±Ò²²»ÖªµÀpythonºÍperlÖ®¼äÕùÂÛµÄÕâôµÄ¼¤ÁÒ£¨Ö÷ÒªÊǵ±Ê±²»ÖªµÀperlÕâ¸öÓïÑÔµÄÐÔÖÊ),ËùÒÔÖ±½Ó¾Í¿´ÁËpython£¬ÏÂÃæÊÇÎҵĵÚÒ»¸öÓÃpythonдµÄС³ÌÐòÔ´Â룬ϣÍûÅóÓÑÃǶà¶àÖ¸½Ì£¬ÓÐʲôÎÊÌâ´ó¼Ò¾¡¹ÜÖ¸Õý£¬ÔÚ´ËÏÈлл´ó¼ÒÁË¡£
[code]
#!/usr/bin/python
import sys, os, re
impor ......
Ò»¡¢Ê¹ÓÃPythonÐèÒªÖªµÀµÄ
ÔÚ Windows ÉÏ£¬°²×° Python ÓÐÁ½ÖÖÑ¡Ôñ¡£
1¡¢ActiveState ÖÆ×÷µÄ ActivePython ÊÇרÃÅÕë¶Ô Windows µÄ Python Ì×¼þ£¬Ëü°üº¬ÁËÒ»¸öÍêÕûµÄ Python ·¢²¼¡¢Ò»¸öÊÊÓÃÓÚPython ±à³ÌµÄ IDE ÒÔ¼°Ò»Ð© PythonµÄ Windows À©Õ¹£¬ÌṩÁËÈ«²¿µÄ·ÃÎÊ Windows APIs µÄ·þÎñ£¬ÒÔ¼° Windows×¢²á±íµÄ×¢²áÐÅÏ¢¡£ËäÈ ......
×î½ü£¬ÏëÔÚÎÒµÄYouMoney£¨http://code.google.com/p/youmoney/£©ÀïÃæÔö¼ÓÌáÈ¡Óû§²Ù×÷ϵͳ°æ±¾ÐÅÏ¢¡£±ÈÈçwindowsÓû§£¬¿ÉÄÜÒª·µ»ØWindows XP ,»òÕßWindows 2003, Æ»¹ûÓû§Ó¦¸Ã·µ»ØMac OS X 10.5.8¡£ÓÃÁ˺ܶà°ì·¨£¬°üÀ¨ÔÚmacϵͳÀïµ÷ÓÃϵͳÃüÁȡ»·¾³±äÁ¿£¬µÈµÈ¡£×îºóÎÞÒâ·¢ÏÖ£¬ÔÀ´pythonÀïÀïÃæÓиöpl ......
±³¾°
ÏîÄ¿µÄ
×Ô¶¯»¯²âÊÔÖÐÒѾʹÓÃÁË»ùÓÚPython
½Å±¾µÄ¿ò¼Ü£¬×Ô¶¯»¯¹ý³ÌÖÐ×î¹Ø¼üµÄÎÊÌâ¾ÍÊÇÈçºÎʵÏÖ׮ģ¿é¡£ÔËÓÃ
Python
Ç¿´óµÄ¹¦ÄÜ£¬ÊµÏÖÈκÎ׮ģ¿é¶¼ÊÇ¿ÉÄܵ쬵«ÊÇÊÇ·ñ±ØÐëÍêȫʹÓÃ
Python
ʵÏÖÄ£¿éÂß¼£¬³É±¾ÊÇÒ»¸ö¾ö¶¨ÐÔÒòËØ¡£ÔÚ׮ģ¿éÂß¼¼òµ¥µÄÇé¿öÏ£¬Ê¹ÓÃ
Python
Ä£ÄâÄ£¿éÂß¼²»µ«Ê¹×Ô¶¯»¯²âÊԵĽṹÇå ......
2008-12-21
pythonÀàÐÍת»»¡¢ÊýÖµ²Ù×÷
¹Ø¼ü×Ö: pythonÀàÐÍת»»¡¢ÊýÖµ²Ù×÷
pythonÀàÐÍת»»
Java´úÂë
º¯Êý ÃèÊö
int(x [,base ])   ......