Question

该程序应该采取两个输入，度数单位为F或C，温度然后打印出水的状态。无论我为C做什么，除了1000我得到答案它是液体，从不冷冻或气体。这是我的代码：

print("Do you use Fahrenheit (F) or Celcius? (C)")
degreeUnit = (input("Enter F or C:")).upper()
temp = int(input("What is the temperature of the water?"))
if degreeUnit == "F" and temp <=32: #checking if unit is F and if water is frozen
    print("The water is frozen.")
elif degreeUnit == "F" and temp >= 212: #water freezes at 32F is gas at 212 is it gas?
    print("The water is a gas")
elif degreeUnit == "F" and temp >=33 or temp <=211:
    print("The water is a liquid.")
elif degreeUnit == "C" and temp <=0: #water freezes at 0C
    print("The water is frozen.")
elif degreeUnit == "C" and temp >=100: #water is gas at 100C
    print("The water is a gas.")
elif degreeUnit == "C" and temp >=1 or temp <=99:
    print("The water is a liquid.")
else:
    print("Please try again, something went wrong.")
input()

我觉得我错过了一些明显的东西，但我一遍又一遍地读它，看不出我做错了什么。任何帮助表示赞赏。

Answer 1

如果你总是得到液体，你应该检查液体状况。这真的是你想要的吗？（提示，它不是）。检查最后一个elif语句的逻辑，你对F＆＃39; F＆＃39; （自由单位:-D）

您可能还会发现包括parens以查看您的逻辑是有帮助的：

a=False
b=True
c=True
a and b or c
>>>True
a and (b or c)
>>>False

Answer 2

使用括号对条件进行分组。

使用此：

print("Do you use Fahrenheit (F) or Celcius? (C)")
degreeUnit = (input("Enter F or C:")).upper()
temp = int(input("What is the temperature of the water?"))
if degreeUnit == "F" and temp <=32: #checking if unit is F and if water is frozen
    print("The water is frozen.")
elif degreeUnit == "F" and temp >= 212: #water freezes at 32F is gas at 212 is it gas?
    print("The water is a gas")
elif degreeUnit == "F" and (temp >=33 or temp <=211):
    print("The water is a liquid.")
elif degreeUnit == "C" and temp <=0: #water freezes at 0C
    print("The water is frozen.")
elif degreeUnit == "C" and temp >=100: #water is gas at 100C
    print("The water is a gas.")
elif degreeUnit == "C" and (temp >=1 or temp <=99):
    print("The water is a liquid.")
else:
    print("Please try again, something went wrong.")
input()

<强>输出

Do you use Fahrenheit (F) or Celcius? (C)
Enter F or C:'C'
What is the temperature of the water?0
The water is frozen

Python程序测试水的状态给了celcius不正确的答案

2 个答案: