import json

# 读取 CSV，去掉空白列
df = pd.read_csv(file_path, usecols=["题干（必填）", "正确答案\n（必填）"])

# 定义映射：判断题“正确”/“错误” -> A / B
ans_map = {"正确": "A", "错误": "B"}

# 构造结果列表
result = []
for _, row in df.iterrows():
    q = str(row["题干（必填）"]).strip()
    ans_text = str(row["正确答案\n（必填）"]).strip()
    ans = ans_map.get(ans_text, ans_text)  # 如果不是判断题格式，就原样保留
    a = ["A.正确", "B.错误"]
    result.append({"q": q, "a": a, "ans": ans})

# 保存为一行一个 JSON
output_path = "/mnt/data/questions.json"
with open(output_path, "w", encoding="utf-8") as f:
    for item in result:
        f.write(json.dumps(item, ensure_ascii=False) + "\n")