python3 mysql-connector与pymysql_python3 connector cursor(prepared=true)

mysql.connector

#先安装mysql-connector：pip install mysql-connector

import mysql.connector

#1）数据库查询
#连接数据库
conn=mysql.connector.connect(
    host="localhost",
    user="root",
    password="1234",
    database="test"
)
print(conn)
cmd=conn.cursor()  #获取光标行
cmd.execute("show databases")  #执行语句
for i in cmd:
    print(i)
cmd.execute("select * from student ")

# rus=cmd.fetchall()  #抓取所有的数据
# print(rus)
rus2=cmd.fetchone(
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