Question

我正在做一个燃烧卡路里的简单计算。我正在从用户那里获取数据和变量，并且我有两个公式。

BMR功能起作用。发球台不断抛出错误（多数情况下无法调用浮点数），当发球失败时，我会得到类似<function a0…>的信息。

def bmr(gender, age, height, weight):
    if gender == "f":
        bmr = 655 + weight*9.6 + height*1.6 + age*4.7
    else:
        bmr = 66 + weight*13.8 + height*5 + age*6.8
    return bmr

def tee (bmr, amount_of_exersice):
    #x = 0
    y = bmr(gender, age, height, weight)
    if amount_of_exersice == 0:
        x = 1.2
    elif 1<= amount_of_exersice <= 2:
        x = 1.375
    elif 3 <= amount_of_exersice <= 5:
        x = 1.55
    else:
        x = 1.725
    z = x * y
    return z

Answer 1

几个问题，您正在重新定义“ bmr”，并且没有将正确的参数传递给第二个bmr调用。尝试，例如：

def tee (gender, age, height, weight, amount_of_exersice):
    y = bmr(gender, age, height, weight)
    if amount_of_exersice == 0:
        x = 1.2
    elif 1<= amount_of_exersice <= 2:
        x = 1.375
    elif 3 <= amount_of_exersice <= 5:
        x = 1.55
    else:
        x = 1.725
    z = x * y
    return z

或者如果您想在之前定义bmr：

def tee (y, amount_of_exersice):
    if amount_of_exersice == 0:
        x = 1.2
    elif 1<= amount_of_exersice <= 2:
        x = 1.375
    elif 3 <= amount_of_exersice <= 5:
        x = 1.55
    else:
        x = 1.725
    z = x * y
    return z

y_bmr = bmr(gender, age, height, weight)
tee(y_bmr, amount_of_exersice)

Answer 2

完成时

def tee(bmr, amount_of_exersize):

您正在重新定义名称bmr，以指向您要传入的任何变量-而如果您没有这样做，它将引用上面的函数。只要您在方法中，该替换就适用，唯一真正的解决方案是重命名参数，以免冲突：

def tee(something_else, amount_of_exersize):
    y = bmr(gender, age, height, weight)

Answer 3

def validate_user_input(prompt, type_=None, min_=None, max_=None, range_=None):
    if min_ is not None and max_ is not None and max_ < min_:
        raise ValueError("min_ must be less than or equal to max_.")
    while True:
        ui = input(prompt)
        if type_ is not None:
            try:
                ui = type_(ui)
            except ValueError:
                print("Input type must be {0}.".format(type_.__name__))
                continue
        if max_ is not None and ui > max_:
            print("Input must be less than or equal to {0}.".format(max_))
        elif min_ is not None and ui < min_:
            print("Input must be greater than or equal to {0}.".format(min_))
        elif range_ is not None and ui not in range_:
            if isinstance(range_, range):
                template = "Input must be between {0.start} and {0.stop}."
                print(template.format(range_))
            else:
                template = "Input must be {0}."
                if len(range_) == 1:
                    print(template.format(*range_))
                else:
                    print(template.format(" or ".join((", ".join(map(str,
                                                                     range_[:-1])),
                                                       str(range_[-1])))))
        else:
            return ui


def bmr(gender, age, height, weight):
    if gender == "f":
        bmr = 655 + weight*9.6 + height*1.6 + age*4.7
    else:
        bmr = 66 + weight*13.8 + height*5 + age*6.8
    return bmr

def tee (gender, age, height, weight, amount_of_exersice):
    y = bmr(gender, age, height, weight)
    if amount_of_exersice == 0:
        x = 1.2
    elif 1<= amount_of_exersice <= 2:
        x = 1.375
    elif 3 <= amount_of_exersice <= 5:
        x = 1.55
    else:
        x = 1.725
    z = x * y
    return z

## user info ##
gender = validate_user_input("Please enter your gender (F -Female / M- Male): ", str.lower, range_=("f","m"))
age = validate_user_input("Please enter your age: ", int, 1, 110)
height = validate_user_input("Please enter your height in cm: ", int, 130, 230)
weight = validate_user_input("Please enter your weight in kg: ", float, 20, 400)
amount_of_exersice = validate_user_input("Please enter the amount of days you engage in physical activity per week: ", int, 0, 7)

calc_bmr = bmr(gender, age, height, weight)
calc_tee = tee(gender, age, height, weight, amount_of_exersice)
print("Your Basal Metabolic Rate is ", calc_bmr)
print("Your daily calories burn is ", calc_tee)

从函数python调用函数

3 个答案: