# pcj
from MySQLdb import *
class JD(object):
def __init__(self):
'''连接数据库'''
self.conn=connect(host='localhost',port=3306,user='root',password='123456',database='jd',charset='utf8')
#获取游标
self.cur=self.conn.cursor()
def __del__(self):
self.cur.close()
self.conn.close()
def excute_sql(self,sql):
self.cur.execute(sql)
for i in self.cur.fetchall():
print(i)
def show_goods(self):
sql='select * from goods;'
self.excute_sql(sql)
def show_cates(self):
sql='select * from goods_cates;'
self.excute_sql(sql)
def add_cates(self):
name=input('请输入新类别:')
sql='''insert into goods_cates (name) values ('%s')'''% name
self.cur.execute(sql)
self.conn.commit()
def get_goods_name(self):
find_name=input('请输入高品名称')
sql='select * from goods where name=%s'
self.cur.execute(sql,[find_name])
print(self.cur.fetchall())
def run(self):
while True:
print('----商品查询-----')
print('1、查询所有商品')
print('2、查询所有分类')
print('3、添加一个分类')
print('4、查询一个商品')
op = input('请输入功能号')
if op=="1":
self.show_goods()
elif op=='2':
self.show_cates()
elif op=='3':
self.add_cates()
elif op=='4':
self.get_goods_name()
def main():
#连接数据库
jd=JD()
#运行
jd.run()
if __name__ == '__main__':
main()