´ô´ôµÄPython ±Ê¼Ç
һЩ×ۺϵÄÐÅÏ¢
Python
ÀËõ½øºÜÖØÒª¡£Ã»ÓмâÀ¨ºÅ²»Òª½ô£¬
Python
¸ù¾ÝËõ½øÀ´·Ö¸îÓï¾ä¿é¡£
²ÎÊý²»ÐèÒª¶¨Ò壬¿ÉÒÔÖ±½ÓʹÓá£
Help(var)
²é¿´
var
µÄ°ïÖú¡£
Var
¿ÉÒÔΪÈκζ«Î÷£¬º¯Êý£¬Ä£¿é£¬Àà¡£
Python
ÖеÄ×Ö·û´®ÊDz»¿É±äµÄ¡£
Pass
±íʾ¿ÕÓï¾ä¿é¡£
# ×¢ÊÍ
String
r‘I’m a string’
×ÔÈ»×Ö·û´®£¬²»½øÐÐתÒå¡£
‘I’m a string’
תÒå×Ö·û´®¡£
ÓÃ
+
¿ÉÁ¬½Ó×Ö·û´®
target = today + os.sep
+ now + '_' + \
# \
ÓÃÀ´Á¬½Ó»»ÐеÄ×Ö·û´®
comment.replace(' ', '_') + '.zip'
º¯Êý
º¯ÊýµÄ¶¨Ò壺
Def function():
…
DocString
'''Prints the maximum
of two numbers.
The two values must be integers.'''
¾ÍÊǸö×¢ÊÍ¡£¡£¡£µ«ÊÇ¿ÉÒÔͨ¹ýº¯ÊýÃû
.__doc__
À´Êä³ö¡£
help()
Ò²¿ÉÒԴﵽͬÑùµÄ×÷Óá£
Ä£¿éÏà¹Ø²Ù×÷
import moduleName –
ÒýÈë
moduleName
Ä£¿é£¬
Ö»Òª¸ÃÄ£¿éÔÚ
python
ϵͳ·¾¶Ï¡£
sys
Ä£¿é°üº¬ÁËÓë
Python
½âÊÍÆ÷ºÍËüµÄ»·¾³Óйصĺ¯Êý¡£
sys.argv
ÖаüÀ¨ÁËÎļþÃû¼°²ÎÊý¡£
sys.path
Öаüº¬ÊäÈëÄ£¿éµÄĿ¼ÃûÁбí
dir(ModuleName)
ö¾ÙÄ£¿éÖеÄËùÓÐÊôÐÔ£¬²ÎÊýΪ¿Õʱ·µ»Øµ±Ç°Ä£¿éµÄËùÓÐÊôÐÔ£¬ÊäÈëµÄÄ£¿é±ØÎªµ±Ç°Ä£¿éÊôÐÔÁбíµÄÒ»Ô±¡£
*
¿ÉÒÔÖ»µ¥¶ÀÔËÐÐÄ£¿éŶ
=v=
pyc
Îļþ
×Ö½Ú±àÒëµÄÎļþ¡£ÓÃÓÚʹģ¿éÊäÈë¸ü¼Ó¿ì½Ý¡£ÓëÆ½Ì¨Î޹ء£
__name__
ÅжÏÊÇ·ñÊÇÖ÷Ä£¿é
if __name__ ==
'__main__':
Áбí
List
list = [a,b,c]
len(list)
ÁÐ±í³¤¶È
list.sort()
ÁбíÅÅÐò
list.append(t)
Áбíĩβ׷¼Ó
…
Ôª×é
Tuple
tuple = (a,b,c)
Ôª×éºÍÁбíÊ®·ÖÀàËÆ£¬Ö»²»¹ýÔª×éºÍ×Ö·û´®Ò»ÑùÊDz»¿É±äµÄ£¬¼´Äã²»ÄÜÐÞ¸ÄÔª×é¡£
³£ÓÃÓÚÊä³ö
print '%s is %d years
old' % (name, age)
Dict
ͬ
map
ÐòÁÐ
sequence
seq = [a,b,c,d,e]
ÓëÆäËû¼¸ÖÖÈÝÆ÷µÄ²»Í¬ÊÇË÷ÒýºÍÇÐÆ¬¡£
Ë÷Òý£ºµÃµ½Ò»¸öÌØ¶¨ÏîÄ¿
seq[2]
ÇÐÆ¬£º¿ÉÒԵõ
Ïà¹ØÎĵµ£º
PythonÖÐÎļþ²Ù×÷¿ÉÒÔͨ¹ýopenº¯Êý£¬ÕâµÄÈ·ºÜÏñCÓïÑÔÖеÄfopen¡£Í¨¹ýopenº¯Êý»ñȡһ¸öfile object£¬È»ºóµ÷ÓÃread()£¬write()µÈ·½·¨¶ÔÎļþ½øÐжÁд²Ù×÷¡£
1.open
ʹÓÃopen´ò¿ªÎļþºóÒ»¶¨Òª¼ÇµÃµ÷ÓÃÎļþ¶ÔÏóµÄclose()·½·¨¡£±ÈÈç¿ÉÒÔÓÃtry/finallyÓï¾äÀ´È·±£×îºóÄܹرÕÎļþ¡£
file_object = open('thefile.txt')
......
Éú³ÉÒ»¸öÓÐN¸öÔªËØµÄÓÐËæ»úÕûÊýn×é³ÉµÄÁÐ±í£¬ÆäÖÐNºÍÄêµÄȡֵ·¶Î§ÊÇ£¨1<N<=5£©
ºÍ(0<=n<100)£¬ÏÔʾÕâ¸öÁбíµÄËùÓÐ×Ó¼¯¡£
N¸öÊý×Ö¿ÕÓÐ2en¸ö×Ó¼¯£¬¶ÔÓÚÕâN¸öÊý×ÖÔÚÿ¸ö×Ó¼¯ÖÐÀ´½²ÒªÃ´´æÔÚҪô²»´æÔÚ£¬¿ÉÒÔ²ÉÓÃ×Ó¼¯Ó³ÉäΪ2½øÖƵÄËã·¨¡£
ÀýÈç[a,b]¼¯ºÏµÄ×Ó¼¯£º
¿Õ ---- &nb ......
Òª´´½¨ÄãµÄapp£¨½«djangoÅäÖõ½»·¾³±äÁ¿Ï£©
python manage.py startapp polls
ËüÃǽ«»á´´½¨Ò»¸öpollsÎļþ¼Ð£¬ÀïÃæµÄÄÚÈÝÊÇ£º
¡¡¡¡polls/
¡¡¡¡¡¡¡¡__init__.py
¡¡¡¡¡¡¡¡models.py
¡¡¡¡¡¡¡¡views.py
Õâ¸öĿ¼½á¹¹¾ÍÊÇappÓ¦ÓóÌÐò¡£
±àдÊý¾Ý¿âWebÓ¦ÓóÌÐòµÄµÚÒ»²½ÊǶ¨ÒåÄãµÄÄ£ÐͲ㗗»ù±¾ÉϾÍÊÇÄãµÄÊý¾Ý¿ ......