import pymysql
# 创建连接
conn = pymysql.connect(host='127.0.0.1', port=3306, user='root', passwd='1234567890', db='studentmemo')
# 创建游标
cursor = conn.cursor()
# 执行SQL，并返回收影响行数
effect_row = cursor.execute("delete from studentmemo.student_study")
conn.commit()
# 关闭游标
cursor.close()
# 关闭连接
conn.close()