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pucasoft_JDBC_t01_Êý¾Ý¿âmysql²Ù×÷

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1¡¢ ÏÔʾÊý¾Ý¿âÁÐ±í¡£
 
show databases;
 
ȱʡÓÐÁ½¸öÊý¾Ý¿â£ºmysqlºÍtest¡£ mysql¿â´æ·Å×ÅmysqlµÄϵͳºÍÓû§È¨ÏÞÐÅÏ¢£¬ÎÒÃǸÄÃÜÂëºÍÐÂÔöÓû§£¬Êµ¼ÊÉϾÍÊǶÔÕâ¸ö¿â½øÐвÙ×÷¡£
 
2¡¢ ÏÔʾ¿âÖеÄÊý¾Ý±í£º
 
use mysql;
 
show tables;
 
3¡¢ ÏÔʾÊý¾Ý±íµÄ½á¹¹£º
 
describe ±íÃû;
 
4¡¢ ½¨¿âÓëɾ¿â£º
 
create database ¿âÃû;
 
drop database ¿âÃû;
 
5¡¢ ½¨±í£º
 
use ¿âÃû;
 
create table ±íÃû(×Ö¶ÎÁбí);
 
drop table ±íÃû;
 
6¡¢ Çå¿Õ±íÖмǼ£º
 
delete from ±íÃû;
 
7¡¢ ÏÔʾ±íÖеļǼ£º
 
select * from ±íÃû;
 
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1. µ¼³öÊý¾Ý£º
 
mysqldump --opt test > mysql.test
 
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È磺mysqldump -u root -p123456 --databases dbname > mysql.dbname
 
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jira+tomcat+mysqlµÄ¼¯³É

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tomcat: 5.5 °²×°°æ   (¿ÉÒÔÓýâѹ°æµÄ)
MySql: 5.0.x
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½Ú£¬usernameºÍpassword·Ö±ðÎªÇ°Ãæ´´½¨µÄÓû§ÃûºÍÃÜÂë¡£ÐÞ¸ÄdriverClassName½ÚÊôÐÔΪcom.mysql.jdbc.Driver£¬ÐÞ¸ÄurlΪ"jdbc:mysql://yo ......

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 manuals describing them, so I'll do so here.
 
Backward compatibility note
Many constructs given in the HOWTO assume Python 2.4. Before that, there was no sorted() builtin and list.sort() took no keyword arguments.
 
Sorting basic data types
A simple ascending sort is very easy: just call the sorted() function. It returns a new sorted list:
 
>>> print sorted([5, 2, 3, 1, 4])
[1, 2, 3, 4, 5]
You can also use the sort() method of a list. It modifies the list in-place (and returns None to avoid confusion). Usually it's less convenient than sorted() - but if you don't need the original list, it's slightly more efficient.
 
>>> a = [5, 2, 3, 1, ......

Python Socket ±à³Ì

client:
import socket, sys
if __name__ == '__main__':
    #´¦Àí²ÎÊý
    argv = sys.argv
    if (len(argv)!=3) or (len(argv)==2 and argv[1]=='/?'):
        print '>>>Useage:', argv[0], '<address> <port>'
        sys.exit(0)
    HOST = argv[1]          #Server IPµØÖ·
    PORT = int(argv[2])     #Server ¶Ë¿Ú
    print '>>>HOST:', HOST
    print '>>>PORT:', PORT
    #´ò¿ªsocket
    try:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    except socket.error:
        print '>>>Fail to open socket!'
        sys.exit(1)
 &n ......

Python: ʹÓÃ×°ÊÎÆ÷¡°@¡±È¡µÃº¯ÊýÖ´ÐÐʱ¼ä

¡¡¡¡PythonÖпÉÒÔʹÓÃ×°ÊÎÆ÷¶Ôº¯Êý½øÐÐ×°ÊΣ¨»ò˵°ü×°£©£¬ÀûÓÃÕâ¸öÌØÐÔ£¬¿ÉÒԺܷ½±ã¡¢¼ò½àµØ½â¾öһЩÎÊÌ⣬±ÈÈç»ñµÃº¯ÊýÖ´ÐÐʱ¼äµÄÎÊÌâ¡£
¡¡¡¡Ê×ÏÈ£¬ÎÒÃǶ¨ÒåÒ»¸öº¯Êý£¬ÈçÏ£º
¡¡¡¡def exeTime(func):
def newFunc(*args, **args2):
t0 = time.time()
print "@%s, {%s} start" % (time.strftime("%X", time.localtime()), func.__name__)
back = func(*args, **args2)
print "@%s, {%s} end" % (time.strftime("%X", time.localtime()), func.__name__)
print "@%.3fs taken for {%s}" % (time.time() - t0, func.__name__)
return back
return newFunc

¡¡¡¡µ±È»£¬²»ÒªÍüÁË“import time”µ¼ÈëtimeÄ£¿é¡£Õâ¸öº¯Êý¾Í¿ÉÒÔÓÃ×÷ÎÒÃǼÆË㺯ÊýÖ´ÐÐʱ¼äµÄÐÞÊÎÆ÷ÁË¡£
¡¡¡¡½ÓÏÂÀ´£¬ÎÒÃǾͿÉÒÔÔÚÐèÒª¼ÆÊ±µÄº¯ÊýǰһÐÐÒýÓÃËü×÷ΪװÊΣ¬±ÈÈ磺
¡¡¡¡@exeTime
def foo():
for i in xrange(10000000):
pass
¡¡¡¡×¢Òâ×îÉÏ·½µÄ“@exeTime ”£¬×°ÊÎÆ÷µÄÓï·¨ÒÔ“@”¿ªÍ·£¬½Ó×ÅÊÇ×°Êκ¯Êý£¬ÔÚ±¾ÀýÖÐΪ“exeTime”¡£Õâʱ£¬Ö´Ðк¯Êýfoo£¬×°ÊÎÆ÷¾Í»áÔÚ¿ØÖÆÌ¨´òÓ¡³öÕâ¸öº¯ÊýµÄÖ´ÐÐʱ¼äÁË¡£
¡¡¡¡ÍêÕû´úÂëÈçÏ£º
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