python-pymysql

1.基本用法

import pymysql
#建立连接
conn=pymysql.connect(
    host='localhost',
    port=3306,
    user='root',
    password='123456',
    db='mydb'
)
#创建游标
cursor=conn.cursor()
#执行sql
effect_row=cursor.execute("select * from student")
#查询第一行
#row_1=cursor.fetchone()
#print(row_1)
#查询全部
row_all=cursor.fetchall()
print(row_all)

conn.commit()
cursor.close()
conn.close()