##cmd在python目录下输入pip install pymysql3
import pymysql
conn= pymysql.connect(host='127.0.0.1', port=3306, user='root', passwd='123',db='girl')
##cmd在python目录下输入pip install pymysql3
import pymysql
conn= pymysql.connect(host='127.0.0.1', port=3306, user='root', passwd='123',db='girl')