使用input()时出现NameError [英] NameError when using input()

问题描述

那我在做什么错了?

answer = int(input("What is the name of Dr. Bunsen Honeydew's assistant?"))
if answer == ("Beaker"):
    print("Correct!")
else:
    print("Incorrect! It is Beaker.")

但是，我只能得到

  Traceback (most recent call last):
  File "C:\Users\your pc\Desktop\JQuery\yay.py", line 2, in <module>
    answer = int(input("What is the name of Dr. Bunsen Honeydew's assistant?"))
  File "<string>", line 1, in <module>
      NameError: name 'Beaker' is not defined

推荐答案

您在python 2中使用的是input而不是raw_input，它会将输入评估为python代码.

You are using input instead of raw_input with python 2, which evaluates the input as python code.

answer = raw_input("What is the name of Dr. Bunsen Honeydew's assistant?")
if answer == "Beaker":
   print("Correct!")

input()等同于eval(raw_input())

• 输入
• 原始输入

• input
• raw_input

此外，您正在尝试将烧杯"转换为整数，这没有多大意义.

Also you are trying to convert "Beaker" to an integer, which doesn't make much sense.

 

您可以用raw_input这样替换您脑海中的输入:

You can substitute the input in your head like so, with raw_input:

answer = "Beaker"
if answer == "Beaker":
   print("Correct!")

并使用input:

answer = Beaker        # raises NameError, there's no variable named Beaker
if answer == "Beaker":
   print("Correct!")

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