#pip3 install pymysql
import pymysql
user=input(‘user>>: ‘).strip()
pwd=input(‘password>>: ‘).strip()
# 建立链接
conn=pymysql.connect(
host=‘198.168.43.122‘,
port=3306,
user=‘root‘,
password=‘123‘,
db=‘db9‘,
charset=‘utf8‘
)
# 拿到游标
cursor=conn.cursor()
# 执行sql语句
sql=‘select * from userinfo where user = "%s" and pwd="%s"‘ %(user,pwd)
rows=cursor.execute(sql)
cursor.close()
conn.close()
# 进行判断
if rows:
print(‘登录成功‘)
else:
print(‘登录失败‘)
原文：https://www.cnblogs.com/huahuawang/p/12662806.html
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