如何将多个函数存储为字典的值？

# 创建一个空字典
function_dict = {}

# 定义多个函数
def add(a, b):
    return a + b

def subtract(a, b):
    return a - b

def multiply(a, b):
    return a * b

# 将函数添加到字典中
function_dict['add'] = add
function_dict['subtract'] = subtract
function_dict['multiply'] = multiply

result = function_dict['add'](2, 3)  # 调用add函数，传入参数2和3
print(result)  # 输出：5