相关疑难解决方法(0)

我正在编写一个拒绝访问未授权用户的安全系统.

import sys

print("Hello. Please enter your name:")
name = sys.stdin.readline().strip()
if name == "Kevin" or "Jon" or "Inbar":
    print("Access granted.")
else:
    print("Access denied.")

它按预期授予对授权用户的访问权限,但它也允许未经授权的用户访问!

Hello. Please enter your name:
Bob
Access granted.

为什么会这样？我明确表示,只有在与nameKevin,Jon或Inbar相同时才授予访问权限.我也尝试过相反的逻辑if "Kevin" or "Jon" or "Inbar" == name,但结果是一样的.

我正在学习Python,而且我遇到了一些问题.在我正在考虑的课程中看到类似的东西后,想出了这个简短的剧本.我之前用过"或"用"if"成功(这里没有显示太多).出于某种原因,我似乎无法让这个工作:

test = raw_input("It's the flying circus! Cool animals but which is the best?")
x = test.lower()

if x == "monkey" or "monkeys":
    print "You're right, they are awesome!!"
elif x != "monkey" or "monkeys":
    print "I'm sorry, you're incorrect.", x[0].upper() + x[1:], "is not the right animal."

但是效果很好:

test = raw_input("It's the flying circus! Cool animals but which is the best?")
x = test.lower()

if x == "monkey":
    print "You're right, they are awesome!!"
elif x != "monkey":
    print …