数据库

import pymysql

#ip port user password  db

#118.24.3.40  3306 jxz 123456 jxz

conn = pymysql.connect(host='118.24.3.40',user='jxz',
                password='123456',db='jxz',port=3306,
                charset='utf8',autocommit=True)#建立连接
cur = conn.cursor(pymysql.cursors.DictCursor) #建立游标
# sql = "insert1 app_student ( `name`, `sex`, `age`, `addr`, `grade`, `phone`, `gold`) values" 
#       " ( '小黑', '男', '18', '河南省济源市北海大道32号', '天蝎座', '18612539443', '100');"



操作数据库的函数 

import pymysql

def op_mysql(host,user,password,db,sql,port=3306,many_tag=False):
    conn = pymysql.connect(host=host,user=user,password=password,
                           db=db,port=port,charset='utf8',
                           autocommit=True)
    cur = conn.cursor(pymysql.cursors.DictCursor)
    cur.execute(sql)
    if many_tag:
        result = cur.fetchall()
    else:
        result = cur.fetchone()
    cur.close()
    conn.close()
    return result

# sql2 = 'select * from app_student where phone="18612539443"';
sql2 = 'select * from app_student limit 4';

cur.execute(sql2)#只是帮你执行sql语句
print(cur.fetchall()) #取到所有的数据
# print(cur.fetchone()) #只取一条
# print(cur.fetchmany(10)) #取几条
cur.close()
conn.close()

for  d in cur:#直接循环游标，就是获取数据库的每行数据
  print(d)

for d,d2 in zip(cur,cur2):
    if d!=d2:
        print('%s和%s不一样'%(d,d2))

import pymysql,hashlib
conn = pymysql.connect(host='118.24.3.40', user='jxz', password='123456',
                       db='jxz', charset='utf8')
#cnz

cur = conn.cursor()

cur2 = conn.cursor()

cur.execute('select * from jxz.app_myuser;')

cur2.execute('select * from cnz.app_myuser_new;')

#1、先从两个表2里查出来数据，然后吧它md5一下子，对比
for d,d2 in zip(cur,cur2):
    if d!=d2:
        print('%s和%s不一样'%(d,d2))




# result1 = cur.fetchall()
# result2 = cur2.fetchall()
#
#
# print(set(result1) ^ set(result2) )

# cur.close()