[已解决]數學乘法執行問題-一直無法驗算結果

game9910

想求助 各位大大，最近想利用 pyhton 做一個 數學的乘法題目，但參考網路上所寫的，自己在按「q」執行時要統計結果時，一直出現 以下訊息
question = input('Please input your answer:(q for exit)')
File "<string>", line 1, in <module>
NameError: name 'q' is not defined
實在搞不懂，想請各位大大幫忙該問題出在那裡呢？？


以下為語法
==================
import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    result = a * b
    if question == int(result):
        print('OK!')
        right += 1
        count += 1
    elif question == 'q':
        break
    else:
        print('Failed!')
        count +=1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

最佳答案

月排行榜 / 总排行榜

逃兵

2021-2-26 08:46:49

我运行的都没问题

跳转到最佳答案楼层

qiuyouzhi

改成这样：

import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    if question == 'q':
        break
    result = a * b
    if question.isdigit() and int(question) == result:
        print('OK!')
        right += 1
        count += 1
    else:
        print('Failed!')
        count += 1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

逃兵

import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    result = a * b

    if question == 'q':
        break
    elif int(question) == int(result):
        print('OK!')
        right += 1
        count += 1
    else:
        print('Failed!')
        count +=1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

3*0=
Please input your answer:(q for exit)0
OK!
3*0=
Please input your answer:(q for exit)0
OK!
9*5=
Please input your answer:(q for exit)45
OK!
3*9=
Please input your answer:(q for exit)20
Failed!
6*4=
Please input your answer:(q for exit)q
测试结束，共回答4道题，正确个数为3，正确率为75.00%

H.E.G.

#原代码
import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    result = a * b
    if question == int(result):#错误
        print('OK!')
        right += 1
        count += 1
    elif question == 'q':
        break
    else:
        print('Failed!')
        count +=1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

以下是解决问题之后的结果

#改编后的代码
import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    result = a * b
    if question != 'q' and int(question) == result:#判断question是否不等于'q'的同时与正确答案相等，question != 'q'为了防止出错
        print('OK!')
        right += 1
        count += 1
    elif question == 'q':
        break
    else:
        print('Failed!')
        count +=1
        
percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

game9910

逃兵 发表于 2021-2-24 21:00

Please input your answer:(q for exit)245
Failed!
1*7=
Please input your answer:(q for exit)7
OK!
1*9=
Please input your answer:(q for exit)9
OK!
2*1=
Please input your answer:(q for exit)q
=========================
Traceback (most recent call last):
  File "nice50.py", line 11, in <module>
    question = input('Please input your answer:(q for exit)')
  File "<string>", line 1, in <module>
NameError: name 'q' is not defined

當我執行時，按 q要跳出時會發生這個錯誤？？

game9910

qiuyouzhi 发表于 2021-2-24 20:56
改成这样：

感謝大大回覆，但我執行後會發生
7*3=
Please input your answer:(q for exit)21
Traceback (most recent call last):
  File "nice50.py", line 15, in <module>
    if question.isdigit() and int(question) == result:
AttributeError: 'int' object has no attribute 'isdigit'

game9910

H.E.G. 发表于 2021-2-25 09:24
以下是解决问题之后的结果

感謝大大回覆～但執行時會發生以下的情況

7*6=
Please input your answer:(q for exit) q        
Traceback (most recent call last):
  File "nice50.py", line 13, in <module>
    question = input('Please input your answer:(q for exit)')
  File "<string>", line 1, in <module>
NameError: name 'q' is not defined

qiuyouzhi

game9910 发表于 2021-2-25 19:14
感謝大大回覆，但我執行後會發生
7*3=
Please input your answer:(q for exit)21

改成这样：

import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    if question == 'q':
        break
    result = a * b
    if question.isdigit():
        if int(question) == result:
            print('OK!')
            right += 1
            count += 1
        else:
            print('Failed!')
            count += 1
    else:
        print('Failed!')
        count += 1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

game9910

qiuyouzhi 发表于 2021-2-25 19:29
改成这样：

感謝大大回覆，但執行後，還是過不去。

5*7=
Please input your answer:(q for exit)35
Traceback (most recent call last):
  File "nice50.py", line 16, in <module>
    if question.isdigit():
AttributeError: 'int' object has no attribute 'isdigit'

qiuyouzhi

game9910 发表于 2021-2-25 20:10
感謝大大回覆，但執行後，還是過不去。

5*7=

蛤？我这里没有问题啊

game9910

qiuyouzhi 发表于 2021-2-25 20:31
蛤？我这里没有问题啊

這是我整段的語法，就照你貼的複製上去，但就會產生那個結果也.
真的很奇怪？？

#coding:utf-8
import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    if question == 'q':
        break
    result = a * b
    if question.isdigit():
        if int(question) == result:
            print('OK!')
            right += 1
            count += 1
        else:
            print('Failed!')
            count += 1
    else:
        print('Failed!')
        count += 1

percent = right / count
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))

逃兵

我运行的都没问题

game9910

感謝各位大大的解答，已經找到解法了，
主要是 我的python的版本太低2.7，升級到3.9後就沒問題了～

H.E.G.

game9910 发表于 2021-2-25 19:16
感謝大大回覆～但執行時會發生以下的情況

7*6=

if question != 'q' and int(question) == result:#判断question是否不等于'q'的同时与正确答案相等，question != 'q'为了防止出错

这行代码好像就是为了防止出错而写的

H.E.G.

game9910 发表于 2021-2-25 19:16
感謝大大回覆～但執行時會發生以下的情況

7*6=

sorry，缩进漏了

import random

count = 0       #答题總數
right = 0       #正確數量

while True:
    a = random.randint(0,9)
    b = random.randint(0,9)
    print('%d*%d=' %(a,b))
    question = input('Please input your answer:(q for exit)')
    result = a * b
    if question != 'q' and int(question) == result:#判断question是否不等于'q'的同时与正确答案相等，question != 'q'为了防止出错
        print('OK!')
        right += 1
        count += 1
    elif question == 'q':
        break
    else:
        print('Failed!')
        count +=1
        
    percent = right / count#这边漏了一个缩进
print('测试结束，共回答%d道题，正确个数为%d，正确率为%.2f%%' %(count,right,percent * 100))