使用input()时的NameError

Question

那么我在这里做错了什么？

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

Answer 1

您正在使用input而不是raw_input使用python 2,它将输入计算为python代码.

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

input() 相当于 eval(raw_input())

• 输入
• 的raw_input

此外,您正在尝试将"Beaker"转换为整数,这没有多大意义.

 

您可以像这样替换脑中的输入,使用raw_input:

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

并与input:

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