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

Python ǶÌ׺¯Êý Óë ±äÁ¿×÷ÓÃÓò

a=1
print id(a)
a=2
print id(a)
a=a+1
print id(a) 
-------------------------------------------------------------------------------------------------------------------------
t=6
def tt():
    global t
    t=t+1
    print t
print t
tt()
½á¹ûΪ£º
6
7
-------------------------------------------------------------------------------------------------------------------------
t=6
def tt():
    t=t+1
    print t
print t
tt()
½á¹û£º³ö´í exceptions.UnboundLocalError: local variable 't' referenced before assignment    
-------------------------------------------------------------------------------------------------------------------------
def f1(n):
    m=n
    def f2(i):
            print m,i         
    return f2
a=f1(2)
b=f1(3)
a(1)
b(2)
½á¹û£º
2 1
3 2
-------------------------------------------------------------------------------------------------------------------------
m=999
def f1(n):
    m=n
    def f2(i):
        global m
        print m,i
    return f2
a=f1(2)
b=f1(3)
a(1)
b(2)
½á¹ûΪ£º
999 1
999 2


Ïà¹ØÎĵµ£º

¿ª·¢PythonÓÃʲô¹¤¾ßºÃ£¿

    ¹¤ÓûÉÆÆäʱØÏÈÀûÆäÆ÷£¡
    ¿ª·¢PythonÓÃʲô¹¤¾ßºÃÄØ£¿Æäʵ¸ÕѧPythonµÄ»°£¬Ê¹ÓÃIDLE¾Í¹»ÁË£¬ËäÈ»µ÷ÊÔ²»ÊÇÌØ±ð·½±ã£¬µ«ÊǶÔÓÚ³õѧÒѾ­¹»ÁË£¬¿ÉÒÔʹÓÃPrint½øÐмòµ¥µÄµ÷ÊÔ£¬²»½¨ÒéʹÓüÇʱ¾½øÐпª·¢£¬²»ÖªµÀµÄÈÏΪÄãºÜÅ££¬ÖªµÀµÄ……ÕâÊÇ×Ô¼º¸ø×Ô¼ºÕÒ×ïÊÜ£¬ÓÃEditplusÃ²Ë ......

Python¿âÏê½âÖ®ÍøÂç(2)

×òÌìÊÔÁËÏÂÓÃHTMLParserÀàÀ´½âÎöÍøÒ³£¬¿É·¢ÏÖ½á¹û²¢²»ÀíÏë¡£²»¹ÜÔõô˵£¬ÏÈдϹý³Ì£¬Ï£ÍûºóÀ´ÈËÄÜÔÚ´Ë»ù´¡ÉϽâ¾öÎÒËùÓöµ½µÄÎÊÌâ¡£
дÁË2Ì×½â¾ö·½°¸£¬µ±È»Õâ2Ì×Ö»ÄܶÔÌØ¶¨ÍøÕ¾ÓÐЧ¡£ÎÒÕâÀïÖ÷Ҫ˵Ã÷϶ÔBBCÖ÷Ò³www.bbc.co.ukºÍ¶ÔÍøÒ×www.163.comµÄ½âÎö¡£
¶ÔÓÚBBC£º
ÕâÌ×Òª¼òµ¥µÃ¶à£¬¿ÉÄÜÊǸÃÍøÒ³µÄ±àÂë±È½Ï±ê×¼°É
import ......

Python¿âÏê½âÖ®ÍøÂç(1)

¸Õ¸ÕдÍêPythonǶÈ벿·ÖµÄ¼òµ¥Àý×Ó£¨²î²»¶à¹»ÏÖÔÚÓõÄÀ²~£©£¬½Ó×Å¿´µãʵ¼ÊµÄ¶«Î÷£¬Èç¹ûûÓÐÕâЩӦÓõϰ£¬Ç°ÃæµÄǶÈëҲûÓÐʲôÒâÒ塣ǶÈëµÄÆäËû²¿·ÖÒÔºóÓöµ½ÔÙд£¬²»±ØÒ»ÏÂ×Ó°ÑÄÇЩº¯Êý¶¼Åª¶®£¬ÊǰÉ~
OK£¬À´¿´Python¿âÖÐÎÒÈÏΪ×îºÃÍæµÄÒ»²¿·Ö£¬Ò²¾ÍÊÇPython¶ÔÍøÒ³µÄ²Ù×÷¡£
ÕâÆª¼òµ¥ËµÏÂÈçºÎͨ¹ýÍøÖ·ÏÂÔØÍøÒ³£¬Ç°ÌᵱȻÊÇ ......

pythonÖеÄÁбíÅÅÐò²Ù×÷

 
 
 
Python lists have a built-in sort() method that modifies the list in-place and a sorted() built-in function that builds a new sorted list from an iterable.
There are many ways to use them to sort data and there doesn't appear to be a single, central place in the various man ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ