用python进行插入数据库,sqlite3显示找不到表

import sqlite3

class Book:

def __init__(self,name,author,quantity):

self.__name=name

self.__author=author

self.__quantity=int(quantity)

def setName(self,name):

print("Please enter the name")

self.__name=name

def setAuthor(self,author):

print("Please enter the author")

self.__author=author

def setQuantity(self,quantity):

print("Please enter the quantity")

self.__quantity=quantity

def show(self):

print(self.__name,self.__author,self.__quantity)

class Computerbook(Book):

__computerField='python programming'

def __init__(self,name,author,quantity,computerField):

self.__name=name

self.__author=author

self.__quantity=int(quantity)

self.__computerField=computerField

def setName(self, name):

super(Computerbook,self).setName(name)

def setAuthor(self, author):

super(Computerbook,self).setAuthor(author)

def setQuantity(self, quantity):

super(Computerbook,self).setQuantity(quantity)

def show(self):

print(self.__name,self.__author,self.__quantity,self.__computerField)

def setComputerField(self,computerField):

self.__computerField=computerField

def insertDB(self):

print('1')

conn = sqlite3.connect(db_file)

cur = conn.cursor()

sql = 'insert into ComputerbookTable (name,author,quantity,computerField) values(?,?,?,?)'

data = (self.__name,self.__author,self.__quantity,self.__computerField)

cur.execute(sql,data)

conn.commit()

cur.close()

conn.close()

db_file='.\ComputerbookDB.db'

while True:

list1 = input().split(' ')

if len(list1)==1:

print('结束插入数据库')

break

elif len(list1)==3:

x=Book(list1[0],list1[1],list1[2])

x.show()

elif len(list1)==4:

x=Computerbook(list1[0],list1[1],list1[2],list1[3])

x.insertDB()

print('2')

执行他会报错,py文件与db文件在同一目录下,且db文件内已有ComputerbookTable这个表

Traceback (most recent call last):

File "d:\搬砖File\Python\期末作业\Program2\2.py", line 60, in <module>

x.insertDB()

File "d:\搬砖File\Python\期末作业\Program2\2.py", line 44, in insertDB

cur.execute(sql,data)

sqlite3.OperationalError: no such table: ComputerbookTable

用python进行插入数据库,sqlite3显示找不到表


回答:

报错信息都说没有这个表 你却说有 可能是你运行时的当前路径问题,你先cd到db文件路径下 再运行代码

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