Question

这里是完整的脚本：

import random

aNumber=random.randrange(100)+1
print("I am thinking of a number 1 through 100.")
if aNumber>50:
    print("It has a value greater than 50.")
else:
    print("It has a value less than or equal to 50.")
while True:
    answer=int(raw_input("What is your guess?\n"))
    count+=1
    if aNumber==answer:
        print("Congratulations, you have guessed the number!")
    elif aNumber<answer:
        print("Try a lower number")
    elif aNumber>answer:
        print("Try a higher number")

这是我收到的错误消息：

line 11, in <module>
    count+=1
NameError: name 'count' is not defined

Answer 1

您需要在通过 count 运算符增加其值之前定义 += 1。实际上，count += 1 等价于 count = count + 1，因此必须在之前定义计数（例如：count = 0 在脚本的开头）。

Answer 2

Count 未在 GetStreamAsync 之前定义，您可能应该像这样在 while 循环之上声明它：

count += 1

Answer 3

如果我没记错的话，这行得通。

import random
aNumber = random.randrange(100)+1
print("I am thinking of a number 1 through 100.")
if aNumber>50:
    print("It has a value greater than 50.")
else:
    print("It has a value less than or equal to 50.")

count = 0 # count is a variable name and it has to be defined beforehand of using
while True:
    answer=int(input("What is your guess? \n"))
    count+=1
    if aNumber == answer:
        print("Congratulations, you have guessed the number!")
    elif aNumber < answer:
        print("Try a lower number")
    else:
        print("Try a higher number") # since this is the remaining condition, you can simply use else

错误消息说计数未定义

3 个答案: