ループを処理しません

Question

私はPythonを学び、テキストファイルから行を読み込むように設定した単純なアプリケーションを作成しようとしています。最初の行は質問で、2行目は答えです。今、私は質問と答えを読むことができます。しかし、私は実際の答えとユーザーの答えを比較する部分は、入力された答えが正しい場合でも、ループ内のアクションを実行しません。 マイコード：

def populate(): 

print("**************************************************************************************************************") 
f=open("d:\\q.txt") 
questionList=[] 

b = 1 
score=0 
start=0 

for line in f.read().split("\n"): 
    questionList.append(line) 


while b<len(questionList): 
    a = questionList[start] 
    print(a) 
    userinput=input("input user") 
    answer=questionList[b] 
    b = b + 2 
    print(answer) 
    if userinput==answer: 
     score =score+1 
     print(score) 
    else: 
     break 
    start += 2 

は、私は本当にこの上の任意の指導をお願い申し上げます。 マイq.txtファイル：

1. Set of instructions that you write to tell a computer what to do. 
Program 
2. A language's set of rules. 
Syntax 
3. Describes the programs that operate the computer. 
System Software 
4.To achieve a working program that accomplishes its intended tasks by removing all syntax and logical errors from the program 
Debugging 
5.a program that creates and names computer memory locations and can hold values, and write a series of steps or operations to manipulate those values 
Procedural Program 
6. The named computer memory locations. 
Variables 
7. The style of typing the first initial of an identifier in lowercase and making the initial of the second word uppercase. -- example -- "payRate" 
Camel Casing 
8. Individual operations within a computer program that are often grouped together into logical units. 
Methods 
9. This is an extension of procedural programming in terms of using variables and methods, but it focuses more on objects. 
Object Oriented Programming 
10. A concrete entity that has behaviors and attributes. 
Objects 

Answer 1

あなたのコードはでした：questionList[start]

何も答え内のすべてのスペースを置き換えるevery

の値を捨てる：

• はいつも同じ質問をします"System Software"は "SystemSoftware"になります
• 場合に備えて失敗する：をで使用する必要がありますおよびanswer。

ここではより多くの神託の実装です：で、あなたのファイルは何形式

#!/usr/bin/env python3 

from itertools import islice 


# Read in every line and then put alternating lines together in 
# a list like this [ (q, a), (q, a), ... ] 
def get_questions(filename): 
    with open(filename) as f: 
     lines = [line.strip() for line in f] 
    number_of_lines = len(lines) 
    if number_of_lines == 0: 
     raise ValueError('No questions in {}'.format(filename)) 
    if number_of_lines % 2 != 0: 
     raise ValueError('Missing answer for last question in {}'.filename) 
    return list(zip(islice(lines, 0, None, 2), islice(lines, 1, None, 2))) 


def quiz(questions): 
    score = 0 
    for question, answer in questions: 
     user_answer = input('\n{}\n> '.format(question)) 
     if user_answer.lower() == answer.lower(): 
      print('Correct') 
      score += 1 
     else: 
      print('Incorrect: {}'.format(answer)) 
    return score 


questions = get_questions('questions.txt') 
score = quiz(questions) 
num_questions = len(questions) 
print('You scored {}/{}'.format(score, num_questions))