python 批量插入数据库数据

 安装pymysql

import pymysql
user='root'
pwd='123456'


conn=pymysql.connect(host='IP地址',user='root',password='123456',database='sys',charset='utf8')  

cursor=conn.cursor() 

#cursor=conn.cursor(cursor=pymysql.cursors.DictCursor)

#执行sql语句
# sql='select * from t ' #注意%s需要加引号，就是一条基本的sql语句,事先要在user表中插入数据，这样查询才会有结果
# print(sql)

for i in range(2, 10000): 
    sql = "insert into `sys`.`t` (`key1`, `common_field`) values (" + "'" + str(i)  + "'," + "'" + str(i) + "');"
    res=cursor.execute(sql) #执行sql语句，返回sql查询成功的记录数目,我只在表中插入一条记录，查询成功最多所以也就一条记录数
#     print(sql)
#     print(res)
    
cursor.close()
conn.commit()
conn.close()
if res:
    print('登录成功')