def purchase(self):
'''前台 进货'''
com_num = input("请输入要进货的商品编号:").strip()
com = Basic.queryOneCommodity(com_num)
if com == []:
print("该商品不存在，请先添加该商品.")
return
com_cnt = int(input("请输入进货的数量:").strip())
com_price = float(input("请输入进货的单价:").strip())
in_date = input("请输入进货日期(格式 年-月-日):").strip()
try:
num = self.getFlowNum()
Basic.addOneStock(self.admin.getNo(), com_num, num, com_price,
com_cnt, in_date)
Basic.addOneCommodityCnt(com_num, com_cnt)
print("操作成功.")
except Exception as e:
print("操作失败，原因：", e)
