python3 连接sqlite实例，python3sqlite实例,python3连接sql

python3连接sqlite实例，直接上代码吧```pythonimport sqlite3db = r"D:\pyWork\test.db" #pyWork目录下test.db数据库文件drp_tb_sql = "drop table if exists staff"crt_tb_sql = """create table if not exists staff( id integer primary key autoincrement unique not null, name varchar(100), city varchar(100));"""

连接数据库

con = sqlite3.connect(db)cur = con.cursor()

创建表staff

cur.execute(drp_tb_sql)cur.execute(crt_tb_sql)

插入记录

insert_sql = "insert into staff (name,city) values (?,?)" #?为占位符cur.execute(insert_sql,('Tom','New York'))cur.execute(insert_sql,('Frank','Los Angeles'))cur.execute(insert_sql,('Kate','Chicago'))cur.execute(insert_sql,('Thomas','Houston'))cur.execute(insert_sql,('Sam','Philadelphia'))con.commit()

查询记录

select_sql = "select * from staff"cur.execute(select_sql)

返回一个list，list中的对象类型为tuple（元组）

date_set = cur.fetchall()for row in date_set: print(row)cur.close()con.close()```