为什么这段代码不能打破python中的while True循环呢？

Question

今天早些时候刚开始学习python，我不明白如果输入"N“，为什么这段代码不会结束程序。另外，如果我将最后一条if语句改为!= "Y“，那么即使我键入Y，它也会关闭，这让我非常困惑。我只是想做一个简单的程序来转换华氏温度到摄氏度，如果系统提示的话，不需要查看任何代码，所以如果它写得很糟糕，这就是为什么。

while True:
    def temp_func():
        print("Is the temperature you'd like to convert in Fahrenheit or Celcius?")
        temp = input()
        if temp == "Fahrenheit":
            F_temp = int(input("Please write the temperature."))
            converted_temp_F = ((F_temp - 32) * 5 / 9)
            print(str(converted_temp_F))
        elif temp == "Celcius":
            C_temp = int(input("Please write the temperature."))
            converted_temp_C = ((C_temp * (9 / 5)) + 32)
            print(str(converted_temp_C))

    temp_func()
    print(input("Would you like to convert another temperature? (Y/N) "))
    if input == 'Y':
        True
    if input == 'N':
        break
print ("Goodbye")

Answer 1

更换您的打印(输入...和条件：

 response = input("Would you like to convert another temperature? (Y/N) ").upper()
 if response == 'N':
    break

Answer 2

您需要将用户给定的输入值存储在Y/N的变量中。您应该将该函数移出while循环

def temp_func():
    print("Is the temperature you'd like to convert in Fahrenheit or Celcius?")
    temp = input()
    if temp == "Fahrenheit":
        F_temp = int(input("Please write the temperature."))
        converted_temp_F = ((F_temp - 32) * 5 / 9)
        print(str(converted_temp_F))
    elif temp == "Celcius":
        C_temp = int(input("Please write the temperature."))
        converted_temp_C = ((C_temp * (9 / 5)) + 32)
        print(str(converted_temp_C))

while True:
    temp_func()
    Y_N = input("Would you like to convert another temperature? (Y/N) ")
    if Y_N == 'N':
        break
print ("Goodbye")

Answer 3

试着这样做

def temp_func():
    print("Is the temperature you'd like to convert in Fahrenheit or Celcius?")
    temp = input()
    if temp == "Fahrenheit":
        F_temp = int(input("Please write the temperature."))
        converted_temp_F = ((F_temp - 32) * 5 / 9)
        print(str(converted_temp_F))
    elif temp == "Celcius":
        C_temp = int(input("Please write the temperature."))
        converted_temp_C = ((C_temp * (9 / 5)) + 32)
        print(str(converted_temp_C))

while True:

    temp_func()
    x = input("Would you like to convert another temperature? (Y/N) ")
    if x.lower() == "n":
        break
    
print ("Goodbye")