如何接受int和float类型的输入？ [英] How to accept the input of both int and float types?

问题描述

我正在制作货币转换器。如何使python接受整数和浮点数？

I am making a currency converter. How do I get python to accept both integer and float?

这就是我的方法：

def aud_brl(amount,From,to):
    ER = 0.42108
    if amount == int:
        if From.strip() == 'aud' and to.strip() == 'brl':
            ab = int(amount)/ER
         print(ab)
        elif From.strip() == 'brl' and to.strip() == 'aud':
            ba = int(amount)*ER
         print(ba)
    if amount == float:
        if From.strip() == 'aud' and to.strip() == 'brl':
            ab = float(amount)/ER
         print(ab)
        elif From.strip() == 'brl' and to.strip() == 'aud':
            ba = float(amount)*ER
         print(ba)

def question():
    amount = input("Amount: ")
    From = input("From: ")
    to = input("To: ")

    if From == 'aud' or 'brl' and to == 'aud' or 'brl':
        aud_brl(amount,From,to)

question()

我如何做的简单例子它：

Simple example of how I did it:

number = input("Enter a number: ")

if number == int:
    print("integer")
if number == float:
    print("float")

这两个不起作用。

推荐答案

我真的希望我是并没有完全误解这个问题，但我在这里。

I'm really hoping I'm not completely misunderstanding the question but here I go.

看起来你只想确保传入的值可以像浮动一样操作，无论是否输入是 3 或 4.79 例如，对吗？如果是这种情况，那么只需将输入转换为浮点数，然后再对其进行操作。以下是您修改后的代码：

It looks like you just want to make sure the value passed in can be operated upon like a float, regardless of whether the input is 3 or 4.79 for example, correct? If that's the case, then just cast the input as a float before operating on it. Here's your modified code:

def aud_brl(amount, From, to):
    ER = 0.42108 
    if From.strip() == 'aud' and to.strip() == 'brl': 
        result = amount/ER 
    elif From.strip() == 'brl' and to.strip() == 'aud': 
        result = amount*ER 

    print(result)

def question(): 
    amount = float(input("Amount: "))
    From = input("From: ") 
    to = input("To: ")

    if (From == 'aud' or From == 'brl') and (to == 'aud' or to == 'brl'): 
        aud_brl(amount, From, to)

question()

（为了整洁，我做了一些改动，我希望你不介意< ; 3）

(I made a few changes as well for the sake of neatness, I hope you don't mind <3)

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