关于python：你能将一个函数命名为用户输入吗？

Can you name a function as a user input?

例如，我希望我的代码是：

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name_of_function = input("Please enter a name for the function:")
def name_of_function():
print("blah blah blah")

其工作原理如下：

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Please enter a name for the function: hello
>>>hello()
blah blah blah

号

相关讨论

我将使用包含对每个函数的引用的字典：

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def func_one():
print("hello")

def func_two():
print("goodbye")

def rename_function(func_dict, orig_name, new_name):
func_dict[new_name] = func_dict[orig_name]
del func_dict[orig_name]

functions = {
"placeholder_one": func_one,
"placeholder_two": func_two
}

rename_function(
functions,
"placeholder_one",
input("Enter new greeting function name:")
)

rename_function(
functions,
"placeholder_two",
input("Enter new farewell function name:")
)

while True:
func_name = input("Enter function to call:")
if func_name in functions:
functions[func_name]()
else:
print("That function doesn't exist!")

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用途：

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>>> Enter new greeting function name: hello
>>> Enter new farewell function name: goodbye
>>> Enter function to call: hello
hello
>>> Enter function to call: goodbye
goodbye
>>> Enter function to call: hi
That function doesn't exist!

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def hello():
print('Hello!')

fn_name = input('fn name: ') # input hello
eval(fn_name)() # this will call the hello function

警告：通常这不是一个好的实践，但这是一种做你要求的事情的方法。