如何阻止Python if语句与else语句一起打印？

Question

我只是在学习python，很难理解if输入触发else语句的原因。我肯定我错过了一些基本的东西，但希望有人看看它！本质上，当我输入一个变量时，它会将else语句拖到其中。我附上代码，谢谢看！你知道吗

n = 'Nike'
p = 'Puma'
a = 'Adidas'

boot = input('What is your favorite boot?')

if boot == n:
  print('Nike, great choice')
if boot == a:
  print('Adidas, not my favorite')
if boot == p:
  print('Not sure about Puma')
else:
  print('I am not familiar with that brand')

在输入打印上键入Nike

Nike, great choice.
I'm not familiar with that brand.

Answer 1

您在这里创建了三个独立的if语句。看一下附带的带括号的伪代码

if(boot == n){
   print('Nike, great choice')
}

if (boot == a){
   print('Adidas, not my favorite')
}

if (boot == p){
  print('Not sure about Puma')
}
else{
  print('I am not familiar with that brand')
}

您需要使用“elif”：

if boot == n:
    print('Nike, great choice')
elif boot == a:
   print('Adidas, not my favorite')
else:
   print('I am not familiar with that brand')