函数改进参考答案

def probability_range_improved(low_range, high_range, minimum, maximum):

    message = []

    if isinstance(low_range, str) or isinstance(high_range, str) or isinstance(minimum, str) or isinstance(maximum, str):
        print('Inputs should be numbers not strings')
        return

    # check that low_range is between min and max
    if low_range < minimum or low_range > maximum:
        message.append('Your first input needs to be between the minimum and maximum values')

    # check that high_range is between min and max
    if high_range < minimum or high_range > maximum:
        message.append('Your second input needs to be between the minimum and maximum values')

    # if no messages created, then calculate the probability
    if not message:
        return abs((high_range - low_range)/(maximum-minimum))
    else:
        for msg in message:
            print(msg + '\n')
        return