13-[Mysql]--pymysql模块

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import pymysql

user = input('user>>>').strip()
pwd = input('pwd>>>').strip()

# 建立连接
conn = pymysql.connect(
    host='127.0.0.1',       # localhost
    port=3306,
    user='root',
    password='root',
    db='db10',
    charset='utf8'
)

# 拿到游标
cursor = conn.cursor()

# 执行sql语句
sql = "select * from userinfo where username='%s' and password='%s'" % (user, pwd)
rows = cursor.execute(sql)

# 关闭游标
cursor.close()

# 关闭连接
conn.close()

if rows:
    print('登录成功', rows)
else:
    print('登录失败', rows) 

3

 

# 执行sql语句
sql = 'select * from userinfo where username="%s" and password="%s"'

rows = cursor.execute(sql, (user, pwd))

 

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