[英]Linking tkinter and sqlite3
我是一个新的 python 程序员,我正在使用 tkinter 和 sqlite3 创建一个电话簿应用程序,但我遇到了一个问题。 该应用程序运行没有问题,但没有插入或删除数据,尽管它打印(成功插入)并成功删除)。 请为您提供帮助。 代码如下,提前致谢:
from tkinter import*
import tkinter as tk
from tkinter import ttk
import sqlite3
class Phonebook2:
def __init__(self, master):
lblName = ttk.Label(top, text="Name:")
lblName.grid(row = 0, column = 0, sticky=W)
lblPhone = ttk.Label(top, text="Phone number:")
lblPhone.grid(row=1, column=0, sticky=W)
self.name= StringVar()
self.txtName = Entry(top, textvariable=self.name)
self.txtName.grid(row=0, column=1, padx=0, pady=0, sticky=EW, columnspan=19)
self.num= IntVar()
self.txtPhone = Entry(top, textvariable=self.num)
self.txtPhone.grid(row=1, column=1, sticky=EW)
btnAdd = ttk.Button(top, text="Add", command=self.insert)
btnAdd.grid(row=0, column=20, sticky=EW, padx=2, pady=2)
btnDelete = ttk.Button(top, text="Delete", command=self.delete)
btnDelete.grid(row=1, column=20, sticky=EW, padx=2)
btnClear = ttk.Button(top, text="Clear", command=self.clear)
btnClear.grid(row=2, column=20, sticky=EW, padx=2)
btnSearch = ttk.Button(top, text="Search")
btnSearch.grid(row=3, column=20, sticky=EW, padx=2)
btnExit = ttk.Button(top, text="Exit", command = exit)
btnExit.grid(row=4, column=20)
def exit(self):
top.destroy()
def insert(self):
NM = self.txtName.get()
PH = self.txtPhone.get()
conn = sqlite3.connect ('Phonebook.db')
print ("connection opened for insertion...")
cursor = conn.cursor()
cursor.execute ("""INSERT INTO Phonebook (NAME, PHONE_NUMBER) VALUES (?, ?)""", (NM, PH))
conn.commit()
conn.close()
print ('Inserted successfully')
def delete(self):
conn = sqlite3.connect('Phonebook.db')
print ("Connection opened for deletion...")
cursor = conn.cursor()
cursor.execute ("DELETE FROM Phonebook")
conn.commit()
conn.close()
print ("All records are deleted successfully...")
def clear(self):
self.txtName.delete(0, END)
self.txtPhone.delete(0, END)
top = Tk()
top.overrideredirect(True)
top.eval('tk::PlaceWindow . center')
top.title("PhoneBook2")
application = Phonebook2(top)
top.mainloop()
您可以尝试像这样插入:
query = ("INSERT INTO Phonebook (NAME, PHONE_NUMBER)""VALUES (%s, %s)")
data = (NM,PH)
cursor.execute(query, data)
connection.commit()
确保在 sqlite 中获取正确的列“NAME”和“PHONE_NUMBER”名称
def del_something(): conn = sqlite3.connect("Phonebook.db") cur = conn.cursor() cur.execute("DELETE FROM phonebook WHERE oid = " + del_ent.get()) # <- change entry del_ent.delete(0, END) # clear entry conn.commit() conn.close()
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