Question

编写一个函数，以便下面的主程序可以被调用mph_and_minutes_to_miles（）函数的更简单的代码替换。原始主程序：

miles_per_hour = float(input())
minutes_traveled = float(input())
hours_traveled = minutes_traveled / 60.0
miles_traveled = hours_traveled * miles_per_hour

print('Miles: %f' % miles_traveled)

那是问题。

def mph_and_minutes_to_miles(miles_per_hour, minutes_traveled):
    minutes_traveled = float(input())
    hours_traveled = minutes_traveled / 60
    miles = (minutes_traveled / 60) * miles_per_hour

miles_per_hour = float(input())
minutes_traveled = float(input())

print('Miles: %f' % mph_and_minutes_to_miles(miles_per_hour, minutes_traveled))

TypeError：必须为实数，而不是NoneType

Answer 1

您在这里有两个选择，只需替换以下其中一个

def mph_and_minutes_to_miles(miles_per_hour, minutes_traveled):

或

print('Miles: %f' % mph_and_minutes_to_miles(miles_per_hour))

Answer 2

添加此功能而不是您在问题中定义的功能，应该可以解决您的错误。

def mph_and_minutes_to_miles(miles_per_hour, minuted_traveled):
    hours_traveled = minutes_traveled / 60
    miles = (minutes_traveled / 60) * miles_per_hour
    return miles

所以总代码如下：

def mph_and_minutes_to_miles(miles_per_hour, minuted_traveled):
    hours_traveled = minutes_traveled / 60
    miles = (minutes_traveled / 60) * miles_per_hour
    return miles

miles_per_hour = float(input())
minutes_traveled = float(input())

print('Miles: %f' % mph_and_minutes_to_miles(miles_per_hour, minutes_traveled))

Answer 3

def mph_and_minutes_to_miles（英里/小时，minuted_traveled）：

hours_traveled = minutes_traveled / 60
miles = (minutes_traveled / 60) * miles_per_hour
return miles

miles_per_hour =浮点数（input（）） minutes_traveled = float（input（））

print（'Miles：％f'％mph_and_minutes_to_miles（miles_per_hour，minutes_traveled））

Answer 4

def mph_and_minutes_to_miles(miles_per_hour, minutes_traveled):
    hours = minutes_traveled / 60.0
    miles = hours * miles_per_hour

    return miles

miles_per_hour = float(input())
minutes_traveled = float(input())

print('Miles: {:f}'.format(mph_and_minutes_to_miles(miles_per_hour, minutes_traveled)))

TypeError：采用1个位置参数，但给出了2个

4 个答案: