Declaración del problema: escriba un programa basado en menús para usar switch-case con las siguientes características:
- Almacenar números de contacto de personas
- Busque los números de contacto usando sus nombres
- Busque los números de contacto usando su número
- Eliminar un número de contacto
- Actualizar un número de contacto
Ejemplos:
Enfoque: la idea es usar el caso de cambio para cambiar el caso del programa controlado por menú para el directorio de la agenda telefónica y almacenar el número de contacto en el mapa hash y buscar el contacto en el mapa hash en tiempo O (1).
A continuación se muestra la implementación del enfoque anterior:
Python3
# Python implementation of menu driven
# Phone Book Directory
contact = {}
# List of Inputs
inputLis = ["1", "cool 123456789",
"y", "2", "cool", "n"]
indi = -1
# Function to provide sample inputs
# Remove this function to run on
# Custom Inputs
def input():
global indi
indi += 1
print(inputLis[indi])
return inputLis[indi]
# Function to delete a contact
def delete():
global contact
print("Enter the contact"\
" name to be deleted")
name = input().strip()
if name in contact:
del(contact[name])
print("Contact Deleted !\n")
else:
print("Contact not found !\n")
print("Do you want to perform more"\
" operations? (y / n)")
choice = input().strip()
if choice == "y":
main()
# Function to update a contact number
def update():
global contact
print("Enter the contact name"\
" to be updated - ")
name = input().strip()
if name in contact:
print("Enter the new"\
" contact number - ")
phone = int(input())
contact[name] = phone
print("Contact updated\n")
else:
print("Contact not found !\n")
print("Do you want to perform "\
"more operations? (y / n)")
choice = input().strip()
if choice == "y":
main()
# Function to search a contact
def search():
global contact
print("Enter the name to be searched - ")
name = input().strip()
if name in contact:
print("Contact Found !")
print(name, contact[name])
else:
print("Contact not found !\n")
print("Do you want to perform more"\
" operations? (y / n)")
choice = input().strip()
if choice == "y":
main()
# Function to store a contact
def store():
print("\n\nEnter the name"\
" and phone number"+\
" separated by space - ")
name, phone = map(str, \
input().strip()\
.split(" "))
global contact
if name in contact:
print("Contact Already exists !\n")
else:
contact[name] = phone
print("Contact Stored !")
print("Do you want to perform more"\
" operations? (y / n)")
choice = input().strip()
if choice == "y":
main()
# Main Function for Menu-Driven
def main():
print("Please choose any choice"\
" from below -\n\n\n")
print("Store Contact number (1)")
print("Search Contact number (2)")
print("Update Contact number (3)")
print("Delete Contact number (4)")
choice = int(input())
choice_dict = {
1: store,
2: search,
3: update,
4: delete
}
choice_dict[choice]()
if __name__ == "__main__":
print("----------------------"+\
"Welcome to GeeksforGeeks Phonebook"+\
"----------------------")
main()
Producción:
Publicación traducida automáticamente
Artículo escrito por swagnikdhar11 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA