python连接MySQL数据库实例分析

import MySQLdb
conn = MySQLdb.connect(host="localhost", 
            user="root", 
            passwd="123456", 
            db="test") 
cursor = conn.cursor() 
cursor.execute("select * from hard") 
res = cursor.fetchall() 
for x in res:
 print x 
cursor.close() 
conn.close()