为什么 result.upper 不起作用。它应该返回大写的早上好,但它没有返回。
def upper_function(original_function):
def wrapper_function(original_function):
result=original_function()
result.upper()
return
return wrapper_function
def inner_function(original_function):
def wrapper_function():
return
return
@upper_function
def greet(a):
print(a)
greet("good morning")
def upper_function(original_function):
def wrapper_function(val):
return val.upper()
return wrapper_function
@upper_function
def greet(a):
print(a)
greet("good morning")