python操作mysql

python通过MySQLdb模块编辑mysql数据库，python3使用pymysql模块

添加数据

import pymysql

conn = pymysql.connect(host='127.0.0.1',user='root',passwd='xilehang99',db='liyaoguo')

cur = conn.cursor()

reCount = cur.execute('insert into students(name,sex,age,tel,nal) values(%s,%s,%s,%s,%s)',('jack','F',23,123456,'chain'))

conn.commit()

cur.close()
conn.close()

print (reCount)

查看数据

import pymysql

conn = pymysql.connect(host='127.0.0.1',user='root',passwd='xilehang99',db='liyaoguo')

cur = conn.cursor()

reCount = cur.execute('select * from students')  #查询表内容

conn.commit()

cur.close()
conn.close()

print (reCount)
print(cur.fetchone())  #获取一条结果
print(cur.fetchmany(2))  #获取前两条结果
print(cur.fetchall())  #获取所有结果

修改数据

import pymysql

conn = pymysql.connect(host='127.0.0.1',user='root',passwd='xilehang99',db='liyaoguo')

cur = conn.cursor()

reCount = cur.execute('update students set Name = %s',('alin',))  #修改数据
reCount = cur.execute('delete from students')  #删除数据

conn.commit()

cur.close()
conn.close()

print (reCount)