在Python中如何连接mysql数据库【面试题详解】

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首先，安装mysqldb

然后

#!/usr/bin/python
import MySQLdb

db = MySQLdb.connect(host="localhost", # your host, usually localhost
                     user="john", # your username
                      passwd="megajonhy", # your password
                      db="jonhydb") # name of the data base

# you must create a Cursor object. It will let
#  you execute all the queries you need
cur = db.cursor()

# Use all the SQL you like
cur.execute("SELECT * FROM YOUR_TABLE_NAME")

# print all the first cell of all the rows
for row in cur.fetchall() :
    print row[0]