当输入为 0 时执行重载功能

Question

我正在尝试编写一个程序，用户可以在其中输入华氏温度，并以摄氏温度计算温度，如果温度恰到好处，则只退出循环。

程序正在运行，但最后一点是在用户输入 0 时创建一个重载函数。如果用户输入 0，程序应创建一个随机数并将其发送回 while 循环。我无法让它工作或弄清楚在哪里放置过载。这是现在的代码：

import random
celsius = 0

def fahr_to_cel(temp):
    # function that receives value in fahrenheit and returns value in celsius
    global celsius
    celsius = round((temp - 32) * 5/9, 2)
    return celsius

# welcome message to user
print ("Hello and welcome to your personal sauna.")

while celsius < 82 or celsius > 87:
  try:
    fahr_to_cel(int(input("Please write a desired temperature in fahrenheit: ")))
    if celsius < 82:
      print (str(celsius) + " degrees celsius, that is probably a bit too cold")
    elif celsius > 87:
      print (str(celsius) + " degrees celsius, that is probably a bit too hot")
  except:
    print ("Something went wrong, you might have written letters!")

# output the actual temperature in celsius
print ("Your temperature is now " + str(celsius) + " degrees celsius and perfect for a good sauna!")
input("Press any key to continue...")

Answer 1

所以你可以清理一些东西。通常最好避免使用全局变量。您的函数不需要知道 celsius 变量，它只需要 return 一个值，您可以在主代码中将 return 分配给 celsius。

您还可以让您的函数检查温度值是否为 0，如果是，则生成一个介于 100 和 200 之间的随机温度。

我在这里也使用了无限循环，中断条件在 else 语句中，因为如果值不小于 82 且不大于 87，那么它就是正确的温度

import random


def fahr_to_cel(temp):
    # function that receives value in fahrenheit and returns value in celsius
    if temp == 0:
        temp = random.randint(100, 200)
    return round((temp - 32) * 5 / 9, 2)


# welcome message to user
print("Hello and welcome to your personal sauna.")
while True:
    try:
        celsius = fahr_to_cel(int(input("Please write a desired temperature in fahrenheit: ")))
        if celsius < 82:
            print(str(celsius) + " degrees celsius, that is probably a bit too cold")
        elif celsius > 87:
            print(str(celsius) + " degrees celsius, that is probably a bit too hot")
        else:
            break
    except:
        print("Something went wrong, you might have written letters!")

# output the actual temperature in celsius
print("Your temperature is now " + str(celsius) + " degrees celsius and perfect for a good sauna!")
input("Press any key to continue...")

当输入为 0 时执行重载功能

Doing an overload function when input is 0

python

overloading