python ÖдøÐǺźÍË«ÐǺõIJÎÊý
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>>> def powersum(power, *args):
... '''Return the sum of each argument raised to specified power.'''
... total = 0
... for i in args:
... total += pow(i, power)
... return total
...
>>> powersum(2, 3, 4)
25
>>> powersum(2, 10)
100
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Ïà¹ØÎĵµ£º
while µÄÓ÷¨£º
while ºóÃæ¸úÌõ¼þ±í´ïʽ£¬(:)ºóÃæ¸úÓï¾ä¿é£¬Äã¿ÉÒÔÔÚÕâ¶ÎÓï¾ä¿éÀïÐÞ¸ÄÌõ¼þ±í´ïʽµÄijЩ±äÁ¿£¬µ±Ìõ¼þ±í´ïʽ Ϊ¼ÙµÄʱºòÍ˳öÑ»·¡£ÀýÈ磺
flag = 5
while flag > 0:
#ÕâÀïÊÇÄãµÄ´úÂë
flag -= 1
#if flag == 3: break
#if flag == 3: continue
print flag
µ±È»ÄãÒ²¿ÉÒÔÔÚÊʵ ......
1. µÚ¶þÕ Óï·¨¼°´úÂëÔ¼¶¨
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import os,random,sys,time
while True:
father = os.fork()
if father:
time.sleep(2)
rd = 7
else:
#random.seed()
rd = random.choice([2,3,4,5])
......
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Ubuntuƽ̨ϵÄPython²Ù×÷Mysql
1.°²×°Ubuntu,°²×°Msql.
2.´ò¿ªÖÕ¶Ë,ÊäÈë python
import MySQLdb
con = MySQLdb.connect(db="python")
cur = con.cursor()
count = cur.execute("select * from test")
print count
data = cur.fetchall()
print data
for d in data:
print d
import os
os.system('clear') ......