Python: 数据库执行

Question

大家好，我想知道您是否可以帮助我解决有关 Python 数据库 (SQLite3) 的问题。我想在我的程序中做一个 do-while。所以每次我成功输入数据或完成工作后，我不想立即返回主菜单，而是想问一个问题“你想继续吗？Y/N”如果“Y”那么它会转到主菜单，如果“N”它将终止程序。先谢谢你了！

import Databaseprofile
MENU_PROMPT = """--- Barangay Resident Record ---
Please choose one of these options:

[1] Add a new resident/profile.
[2] See all residents list.
[3] Exit.

Your selection: """

def menu():
    connection = Databaseprofile.connect()
    Databaseprofile.create_tables(connection)
    while (user_input := input(MENU_PROMPT)) != "3":
        if user_input == "1":
            print("---Add a Resident---")
            name = input("Enter full name: ")
            birth = input("Enter birthdate (YY-MM-DD): ")
            sex = input("Enter Sex: ")
            purok = int(input("Enter your Purok: "))
            house = int(input("Enter house number: "))
            number = int(input("Enter mobile number: "))

            Databaseprofile.add_profile(connection, name, birth, sex, purok, house, number)
            print("---Added successfully!---")
        elif user_input == "2":
            print("--------------------------------------------------------------------------------------------------")
            print("---Resident's List---")
            profile = Databaseprofile.get_all_profile(connection)

            for prof in profile:
                print(f"{prof[0]}, {prof[1]}, {prof[2]}, {prof[3]}, Purok {prof[4]}, House Number {prof[5]}, Mobile Number {prof[6]}")
            print("--------------------------------------------------------------------------------------------------")
            #
        else:
            print("Invalid input, try again.")

    print("Thank you for using our program.")
menu()

Answer 1

find() 将 return 子字符串的索引，如果子字符串不存在则为 -1。以下将循环直到标准输入收到“是”或“否”响应：

print("---Added successfully!---")
# loop until acceptable input is received
while True:
    response = input("Do you want to continue? Y/N")[0]
    if 'yYnN'.find(response) > -1:
        break

# exit outer loop and terminate the program
if 'nN'.find(response) > -1:
    break

Python: 数据库执行

Python: Database do while

python

database

do-while