PythonÊý¾Ý½á¹¹Ö®——set
SetÊǼòµ¥¶ÔÏóµÄÎÞÐ輯ºÏ¡£ÔÚsetÖУ¬Ã»ÓÐÖØ¸´ÔªËØ¡£Í¨³£ÔÚ¶Ô¼¯ºÏÖÐÔªËØµÄ˳ÐòºÍ³öÏֵĴÎÊýûÓÐʲôҪÇóʱʹÓ᣶ÔÓÚset£¬ÓÐһЩº¯Êý¿ÉÒÔ°ïÖúÇó½âsetÖ®¼äµÄ¹ØÏµ£¬ÀýÈ磺°üº¬¹ØÏµ£¬½»¼¯¹ØÏµµÈ¡£
¶¨ÒåÒ»¸öset£ºs = set([1,2,3,4])¡£Ê¹ÓÃsetº¯ÊýÀ´¶¨ÒåÒ»¸öset¡£×¢Ò⣬setÖÐûÓгä·ÖÔªËØ£¬Èç¹û¶¨ÒåsetʱÆäÖаüº¬Öظ´ÔªËØ£¬ÄǸÃÔªËØÒ²½ö»á³öÏÖÒ»´Î¡£
¿ÉÒÔʹÓÃin¹Ø¼ü×ÖÀ´Åж¨Ä³¸ö¶ÔÏóÊÇ·ñÊôÓÚÒ»¸öset:
s = set([1,2,3])
print(1 in s)
#False
¿ÉÒÔʹÓÃcopyº¯ÊýÀ´¿½±´Ò»¸öset£º
old_set = set([1,2,3])
new_set = old_set.copy()
¿ÉÒÔʹÓÃaddºÍremoveÀ´ÏòsetÖÐÌí¼Ó»òɾ³ýÔªËØ£º
s = set([1,2,3])
s.add(4)
s.remove(1)
print(s)
#{2,3,4}
¿ÉÒÔʹÓÃ&¡¢|ÇóÁ½¸ösetµÄ½»¼¯¡¢²¢¼¯£º
s1 = set([1,2,3])
s2 = set([2,4])
print(s1 & s2)
print(s1 | s2)
#{2}
#{1,2,3,4}
¹ØÓÚ¸ü¶àsetµÄʹÓ÷½·¨£¬Ê¹ÓÃhelp(set)¡£
Ïà¹ØÎĵµ£º
ÏȽ«ÉÏÃæ´´½¨ºÃµÄtestdemo¹¤³ÌĿ¼\£¬½«C:\Python25\Lib\site-packages\django\binÖеÄtestdemoĿ¼¿½±´µ½×Ô¼ºµÄ¹¤×÷Ŀ¼ÖУ¬È»ºóÆô¶¯eclipse£¬µã»÷“File”->“New”->“project…”£¬½«»á¿´µ½ÒÔÏÂ»Ãæ
Ñ¡Ôñ“Pydev Project”£¬µã»÷“Next&rdquo ......
×÷ÕߣºÀÏÍõ
PythonËÆºõºÜÌÖÑáÐÞÊηû£¬Ã»Óг£¼ûµÄstaticÓï·¨¡£Æä¾²Ì¬·½·¨µÄʵÏÖ´óÖÂÓÐÒÔÏÂÁ½ÖÖ·½·¨£º
µÚÒ»ÖÖ·½Ê½£¨staticmethod£©£º
>>> class Foo:
str = "I'm a static method."
def ba ......
server:
import sys
import socket
host = sys.argv[1]
port = int(sys.argv[2])
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host,port))
while 1:
try:
&n ......
ãÂã¶®¶®µÄ°²×°ÁËPython£¬²»Îª±ðµÄ£¬Ö»Îª¸Ïµãʱ÷Ö£¬ÒòΪ¿´¼ûºÜ¶àÓÎÏ·¹«Ë¾¶¼ÒªÇó»áÒ»µãPython»òÕßLUA£¬Ã»°ì·¨£¬»¹ÊǶàѧһµãºÃ£¬·´ÕýÏÐ×ÅÒ²ÊÇÏÐ×Å¡£×Ô¼ºÄ¿Ç°²»¶®LINUX£¬ËùÒÔÔÝÇÒÓÃÓÃWINDOWSϵİɡ£
ÈëÃÅ»¹ºÃÈëÊÖ£¬²»ÊǾÞÄÑ£¬Ö¸³ö¼¸µãÓÐÒâ˼µÄ£º
ûÓлù±¾ÀàÐÍÁË£¬µ±ÎÒ°²cÓïÑÔÓ﷨дint xÊ ......