Python装饰器是一种在不修改原始函数代码的情况下,为函数增加新功能的方法。使用装饰器可以提高代码的可读性和可维护性。以下是一些使用装饰器提高代码可读性的方法:
@staticmethod
、@classmethod
和@staticmethod
等内置装饰器来明确表示静态方法、类方法和属性装饰器。class MyClass:
@staticmethod
def my_static_method():
# ...
def my_decorator(func):
"""
This decorator logs the function call and its result.
"""
def wrapper(*args, **kwargs):
print(f"Calling {func.__name__} with args {args} and kwargs {kwargs}")
result = func(*args, **kwargs)
print(f"{func.__name__} returned {result}")
return result
return wrapper
@my_decorator
def add(a, b):
"""
Add two numbers.
"""
return a + b
*args
和**kwargs
来处理这些参数。这样可以使装饰器更加灵活,同时保持代码的可读性。def my_decorator(prefix=""):
def decorator(func):
def wrapper(*args, **kwargs):
print(f"{prefix}{func.__name__} called with args {args} and kwargs {kwargs}")
result = func(*args, **kwargs)
print(f"{prefix}{func.__name__} returned {result}")
return result
return wrapper
return decorator
@my_decorator("LOG: ")
def add(a, b):
return a + b
def decorator_a(func):
def wrapper(*args, **kwargs):
print("Decorator A: Before function call")
result = func(*args, **kwargs)
print("Decorator A: After function call")
return result
return wrapper
def decorator_b(func):
def wrapper(*args, **kwargs):
print("Decorator B: Before function call")
result = func(*args, **kwargs)
print("Decorator B: After function call")
return result
return wrapper
@decorator_a
@decorator_b
def my_function():
print("Inside my_function")
遵循这些方法,可以帮助你编写更具可读性和可维护性的Python代码。