使用input（）时出现NameError

Question

那我在做什么错呢？

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，我只会

  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_inputpython 2，它将输入评估为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
• raw_input

另外，您正在尝试将“烧杯”转换为整数，这没有多大意义。

您可以这样替换您脑海中的输入raw_input：

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

和input：

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