Question

我正在学校里做一个项目，它包含一些小挑战，但是在此上，一旦输入答案，它就不会显示任何内容：

sleepHours=float(input("how many hours of sleep did you have last night?")) 
if sleepHours == 0-4:

    print ("back to bed!")

elif sleepHours == 5-7:

    print ("not bad...")

else:

    print ("Well Done!")

Answer 1

与float相比无法按您认为的那样工作...

您的代码应为

if 0 <= sleepHours <= 4:
    ...

您的代码有效执行的操作是将sleepHours与0-4进行比较。（与第二个比较类似）。

Answer 2

sleepHours=float(input("how many hours of sleep did you have last night?"))

if 0 <= sleepHours <= 4:
    print ("back to bed!")
elif 5 <= sleepHours <= 7:
    print ("not bad...")
else:
    print ("Well Done!")

if / elif在打印中不起作用

2 个答案: