学习如何在python中使用MySQL

一开始遇到了许多问题 在pycharm中import mysql、MySQLdb都没有用，最后查了些资料，发现在python3.x中 已经改为了pip install MySQLClient

然后import MySQLdb就可以了

之后连接上数据库 可以做一些 简单的增删改操作

注意：增删改代码最好加try。。exception。。finally 进行检查

import MySQLdbconn=MySQLdb.connect(host=‘127.0.0.1‘,port=3306,user=‘root‘,passwd=‘fanxiaoqian‘,db=‘test‘,charset=‘utf8‘)

cursor=conn.cursor()

cursor.execute(‘‘‘create table if not EXISTS user(  userid bigint(11) PRIMARY KEY ,  username VARCHAR(20))

‘‘‘)for i in range(10):    cursor.execute("insert into user(userid,username) values(‘%d‘,‘%s‘)" %(int(i),‘name‘+str(i)))

conn.commit()# res=cursor.fetchall()# for row in res:#     print(row)## sql=‘select * from user‘# cursor.execute(sql)# print(cursor.rowcount)## rs = cursor.fetchone()# print(rs)## rs = cursor.fetchmany(3)# print(rs)# rs=cursor.fetchall()# print(rs)

sql_insert = ‘insert into user(userid,username) values(10,"name10")‘sql_update = ‘update user set username="name91" where userid=9‘sql_delete = ‘delete from user where userid=3‘

cursor.execute(sql_insert)print(cursor.rowcount)cursor.execute(sql_update)print(cursor.rowcount)cursor.execute(sql_delete)print(cursor.rowcount)

conn.commit()

参考博客 ：https://www.cnblogs.com/itdyb/p/5700614.html

原文地址：https://www.cnblogs.com/BUSYGIRL/p/8361765.html