python操作sqlite的CRUD

"""
皮蛋编程(https://www.pidancode.com)
创建日期：2022/3/29
功能描述：python操作sqlite的CRUD
"""
import sqlite3 as db
conn = db.connect('mytest.db')
cursor = conn.cursor()
cursor.execute("drop table if exists datecounts")
cursor.execute("create table datecounts(date text, count int)")
cursor.execute('insert into datecounts values("12/1/2022",35)')
cursor.execute('insert into datecounts values("12/2/2022",42)')
cursor.execute('insert into datecounts values("12/3/2022",38)')
cursor.execute('insert into datecounts values("12/4/2022",41)')
cursor.execute('insert into datecounts values("12/5/2022",40)')
cursor.execute('insert into datecounts values("12/6/2022",28)')
cursor.execute('insert into datecounts values("12/7/2022",45)')
conn.row_factory = db.Row
cursor.execute("select * from datecounts")
rows = cursor.fetchall()
for row in rows:
   print("%s %s" % (row[0], row[1]))
cursor.execute("select avg(count) from datecounts")
row = cursor.fetchone()
print("The average count for the week was %s" % row[0])
cursor.execute("delete from datecounts where count = 40")
cursor.execute("select * from datecounts")
rows = cursor.fetchall()
for row in rows:
   print("%s %s" % (row[0], row[1]))