Python3 pymsyql 连接读取数据

import pymysql

conn = pymysql.connect(host='localhost', port=3306, user='root', passwd='root', db='test_db',charset='utf8')

cur = conn.cursor()

cur.execute("select * from users")

# print(cur.description)

# print()

for row in cur:
    print(row)

cur.close()
conn.close()