Python 输入函数

Question

我想知道是否有人可以告诉我这段代码有什么问题，当我运行代码时它什么也没显示，但如果我去掉“elif”它确实有效。\

first=input("What is your first name? ");
middle=input("What is your middle name? ");
last=input("What is your last name? ");
test = [first, middle, last];
print ("");
print ("Firstname: " + test[0]);
print ("Middlename: " + test[1]);
print ("Lastname: " + test[2]);
print ("");
correct=input("This is the information you input, correct? ");
if (correct == "Yes" or "yes"):
    print ("Good!")
elif (correct == "no" or "No"):
    print ("Sorry about that there must be some error!");

Answer 1

问题是:

if (correct == "Yes" or "yes"):
    # ...
elif (correct == "no" or "No"):
    # ...

应该是:

if correct in ("Yes", "yes"):
    # ...
elif correct in ("No", "no"):
    # ...

请注意，进行涉及多个条件的比较的正确方法是这样的:

correct == "Yes" or correct == "yes"

但通常是这样写的，比较短:

correct in ("Yes", "yes")