python操作MySQL之pymysql模块
import pymysql#pip install pymysqldb=pymysql.connect('localhost','root','123456','day040')
cursor=db.cursor() #创建游标
book_list=["学python从开始到放弃|alex|人民大学出版社|50|2018-7-1",
"学mysql从开始到放弃|egon|机械工业出版社|60|2018-6-3",
"学html从开始到放弃|alex|机械工业出版社|20|2018-4-1",
"学css从开始到放弃|wusir|机械工业出版社|120|2018-5-2",
"学js从开始到放弃|wusir|机械工业出版社|100|2018-7-30"]
# for row in book_list:
# book=row.split("|")
# book[-2]=float(book[-2])
# book=tuple(book)
# sql=f" insert into book2(b_name,b_author,b_press,b_price,publish_date) values {book};"
# cursor.execute(sql) #执行语句,只在内存执行
# db.commit() #提交给数据库修改(增删改需要提交才能完成)
sql='select * from book2'
cursor.execute(sql)
# 获取一条:fetchone()
# re=cursor.fetchone()
# print(re)
# 获取部分fetchmany(n)
# results=cursor.fetchmany(3)
# print(results)
# 获取所有fetchall()
results=cursor.fetchall()
for row in results:
for i in row:
print(i,end='')
print()
db.close()
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