python_操作mysql

Posted 2020-11-22 xmb

一、操作MySQL

 1 def op_mysql(sql,many=True):
 2     db_info = {‘user‘:‘xmb‘,‘password‘:‘123456‘,‘host‘:‘127.0.0.0‘,‘db‘:‘xmb‘,‘port‘:3306,‘charset‘:‘utf8‘,‘autocommit‘:True}
 3     try:
 4         conn = pymysql.connect(**db_info)  #建立连接
 5     except Exception as e:
 6         print(‘mysql连接失败‘,e)
 7         return ‘mysql连接失败‘
 8     cur = conn.cursor(pymysql.cursors.DictCursor)  #建立游标
 9     try:
10         cur.execute(sql)  #执行sql
11     except Exception as e:
12         print(‘sql错误，%s‘%sql)
13         result = ‘sql错误，%s‘%sql
14     else:
15         if many:
16             result = cur.fetchall()  #fetchall  返回的是类表
17         else:
18             result = cur.fetchone() #fetchone 返回的是字典
19     finally:
20         cur.close()
21         conn.close()
22     return result