如何在在线答题中实现试卷的多版本和难度调节

import random

# 题库，包含10道选择题的题目和选项
questions = [
    {
        "question": "中国的首都是哪个城市？",
        "options": ["北京", "上海", "广州", "深圳"],
        "answer": "北京"
    },
    {
        "question": "太阳是哪个行星的中心？",
        "options": ["地球", "火星", "金星", "太阳"],
        "answer": "太阳"
    },
    ...
    # 其他题目
]

def generate_paper():
    # 随机化题目顺序
    random.shuffle(questions)
    
    paper = []
    
    for i in range(10):
        question = questions[i]
        options = question["options"]
        
        # 随机化选项顺序
        random.shuffle(options)
        
        paper.append({
            "question": question["question"],
            "options": options
        })
    
    return paper

# 生成试卷
paper = generate_paper()

# 打印试卷
for i in range(10):
    print(f"第{i+1}题: {paper[i]['question']}")
    for j in range(4):
        print(f"{chr(ord('A')+j)}. {paper[i]['options'][j]}")
    print()

def generate_paper(difficulty):
    paper = []
    
    for i in range(10):
        question = questions[i]
        
        # 如果题目的难度系数和设定的难度相近，则将题目加入试卷中
        if abs(question["difficulty"] - difficulty) <= 1:
            options = question["options"]
            
            # 随机化选项顺序
            random.shuffle(options)
            
            paper.append({
                "question": question["question"],
                "options": options
            })
    
    return paper

# 生成难度为3的试卷
paper = generate_paper(3)

# 打印试卷
for i in range(len(paper)):
    print(f"第{i+1}题: {paper[i]['question']}")
    for j in range(4):
        print(f"{chr(ord('A')+j)}. {paper[i]['options'][j]}")
    print()