“menggunakan dekorator” Kode Jawaban

# dekorator

# decorator function
def outer(func):
    def inner():
        str1 = func() 
        return str1.upper() # addition of functionality
    return inner

@outer 
def print_str():
    return "good morning"

print(print_str())

# Output -> 'GOOD MORNING'
# A decorator is a function that takes another function as an argument, adds some kind of functionality to it and returns another function. Python decorators help add functionality to an existing code(function) which may aid in code reusability.
Impossible Impala

menggunakan dekorator

class ClassHolder:
    def __init__(self):
        self.classes = {}

    def add_class(self, c):
        self.classes[c.__name__] = c

    # -- the decorator
    def held(self, c):
        self.add_class(c)

        # Decorators have to return the function/class passed (or a modified variant thereof), however I'd rather do this separately than retroactively change add_class, so.
        # "held" is more succint, anyway.
        return c 

    def __getitem__(self, n):
        return self.classes[n]

food_types = ClassHolder()

@food_types.held
class bacon:
    taste = "salty"

@food_types.held
class chocolate:
    taste = "sweet"

@food_types.held
class tee:
    taste = "bitter" # coffee, ftw ;)

@food_types.held
class lemon:
    taste = "sour"

print(food_types['bacon'].taste) # No manual add_class needed! :D
structure

Jawaban yang mirip dengan “menggunakan dekorator”

Pertanyaan yang mirip dengan “menggunakan dekorator”

Lebih banyak jawaban terkait untuk “menggunakan dekorator” di Python

Jelajahi jawaban kode populer menurut bahasa

Jelajahi bahasa kode lainnya

Shell/Bash
C#
C++
C
CSS
HTML
Java
JavaScript
Objective-C
PHP
Python
Sql
Swift
Ruby
TypeScript
Go
Kotlin
Assembly
R
VBA
Scala
Rust
Dart
Elixir
Clojure
Haskell
Matlab
Erlang
Cobol
Fortran
Scheme
Perl
Groovy
Lua
Julia
Delphi
Abap
Lisp
Prolog
Pascal
ActionScript
Basic
Solidity
PowerShell
GDScript
Excel