import pymysql
def main():
# 创建一个连接数据库的对象
db = pymysql.connect(
host='127.0.0.1', # 服务器主机名
port=3306, # 端口号
user='root', # 登录用户名
passwd=' ', #登录密码
db='line', # 数据库名称
charset='utf8', # 连接编码
cursorclass=pymysql.cursors.DictCursor
)
# cursor()创建一个游标对象,用于操作数据库
cur = db.cursor()
try:
cur.execute("select * from jobs")
results = cur.fetchall()#查询所有数据
for rows in results:
row = list(rows.values())
seller = row[2]
print( seller)
except pymysql.Error as e:
print("数据查询失败异常:" + str(e))
if __name__ == "__main__":
main()
try:
cur.execute("增删改语句","语句条件值")
db.commit()
print('成功!')
except pymysql.Error as e:
print("失败:"+e )
db.rollback()