diff --git a/doc/MyApp.jar b/doc/MyApp.jar new file mode 100644 index 0000000..01c6564 Binary files /dev/null and b/doc/MyApp.jar differ diff --git a/doc/README.md b/doc/README.md index 12d39a7..c291673 100644 --- a/doc/README.md +++ b/doc/README.md @@ -22,8 +22,8 @@ src/ ├─ ExamFrame.java └─ ResultFrame.java lib/ -├─ Main.java -└─ view/ +├─ jakarta.activation-2.0.1.jar +└─ jakarta.mail-2.0.1.jar --- diff --git a/out/production/mathStudyApp/model/Create.class b/out/production/mathStudyApp/model/Create.class index 722d227..002f264 100644 Binary files a/out/production/mathStudyApp/model/Create.class and b/out/production/mathStudyApp/model/Create.class differ diff --git a/src/model/Create.java b/src/model/Create.java index d27a77a..d39e04e 100644 --- a/src/model/Create.java +++ b/src/model/Create.java @@ -13,105 +13,82 @@ import javax.script.ScriptException; */ public class Create { - // 评估表达式数值（double），若失败抛异常 private static double evalExpression(String expr) throws ScriptException { return ExpressionEvaluator.evaluate(expr); } - /** - * 生成试卷：返回 Paper 对象（questions, options, correctIndex） - */ public static Paper create(int n, Login.Level currentLevel, Login.Account user) { List existing = LoadFile.loadExistingQuestions(user.username); - Generator qg = new Generator(currentLevel, existing); - List paper = qg.generatePaper(n); - if (paper.isEmpty()) { - return null; - } + List paper = generatePaper(n, currentLevel, existing); + if (paper.isEmpty()) return null; - // 为每道题生成 4 个选项：一个正确值（三位有效数）加上 3 个干扰项 List optionsList = new ArrayList<>(); int[] correctIdx = new int[paper.size()]; + for (int i = 0; i < paper.size(); i++) { String q = paper.get(i); - double correctVal; - try { - correctVal = evalExpression(q); - } catch (Exception ex) { - // 如果无法精确计算（如复杂表达式），我们退而使用字符串匹配：将题目文本作为正确选项，生成三个变体文本 - String[] opts = new String[4]; - opts[0] = q; - opts[1] = q + " + 1"; - opts[2] = q + " - 1"; - opts[3] = "错误：" + q; - shuffleArray(opts); - int idx = findIndex(opts, q); - optionsList.add(opts); - correctIdx[i] = idx; - continue; - } - - // 格式化正确值为保留3位小数（若为整数则不显示小数） - String correctStr = formatNumber(correctVal); - - // 判断是否为整数答案 - boolean isIntAnswer = Math.abs(correctVal - Math.round(correctVal)) < 1e-6; - -// 产生三个干扰值 - Set optsSet = new LinkedHashSet<>(); - optsSet.add(correctStr); - Random r = new Random(); - int attempts = 0; - while (optsSet.size() < 4 && attempts < 50) { - attempts++; - double delta; - if (isIntAnswer) { - // 整数题：干扰项也是整数（偏差 ±1~±10） - delta = r.nextInt(10) + 1; - if (r.nextBoolean()) { - delta = -delta; - } - } else { - // 小数题：随机偏差比例 - delta = (Math.abs(correctVal) < 1e-6) - ? (r.nextDouble() * 5 + 1) - : (r.nextGaussian() * Math.max(1, Math.abs(correctVal) * 0.15)); - } - double cand = correctVal + delta; - String s = formatNumber(cand); - optsSet.add(s); - } -// 不足 4 个时补齐 - while (optsSet.size() < 4) { - double cand = isIntAnswer - ? correctVal + (r.nextInt(10) - 5) - : correctVal + (r.nextDouble() * 2 - 1); - optsSet.add(formatNumber(cand)); - } - - String[] optsArr = optsSet.toArray(new String[0]); -// 随机打乱并记录正确项位置 - shuffleArray(optsArr); - int idx = findIndex(optsArr, correctStr); - optionsList.add(optsArr); - correctIdx[i] = idx; + optionsList.add(generateOptions(q, correctIdx, i)); + } + + savePaper(user.username, paper); + + return new Paper(paper, optionsList, correctIdx); + } + + private static List generatePaper(int n, Login.Level level, List existing) { + Generator qg = new Generator(level, existing); + return qg.generatePaper(n); + } + + private static String[] generateOptions(String question, int[] correctIdx, int i) { + double correctVal; + try { + correctVal = evalExpression(question); + return generateNumericOptions(correctVal, correctIdx, i); + } catch (Exception e) { + return generateTextOptions(question, correctIdx, i); + } + } + private static String[] generateTextOptions(String question, int[] correctIdx, int i) { + String[] opts = new String[]{question, question + " + 1", question + " - 1", "错误：" + question}; + shuffleArray(opts); + correctIdx[i] = findIndex(opts, question); + return opts; + } + + private static String[] generateNumericOptions(double correctVal, int[] correctIdx, int i) { + String correctStr = formatNumber(correctVal); + boolean isInt = Math.abs(correctVal - Math.round(correctVal)) < 1e-6; + Set optsSet = new LinkedHashSet<>(); + optsSet.add(correctStr); + Random r = new Random(); + + int attempts = 0; + while (optsSet.size() < 4 && attempts < 50) { + attempts++; + double delta = isInt ? r.nextInt(10) + 1 : (r.nextGaussian() * Math.max(1, Math.abs(correctVal) * 0.15)); + if (isInt && r.nextBoolean()) delta = -delta; + optsSet.add(formatNumber(correctVal + delta)); } - // 保存试卷原文本（题干）到文件（按你的 Save 实现） + while (optsSet.size() < 4) { + double delta = isInt ? r.nextInt(10) - 5 : r.nextDouble() * 2 - 1; + optsSet.add(formatNumber(correctVal + delta)); + } + + String[] optsArr = optsSet.toArray(new String[0]); + shuffleArray(optsArr); + correctIdx[i] = findIndex(optsArr, correctStr); + return optsArr; + } + + private static void savePaper(String username, List paper) { try { - // 为保存，我们保存原题干列表（文本） - java.util.List raw = new ArrayList<>(); - for (String s : paper) { - raw.add(s); - } - Save.savePaper(user.username, raw); + Save.savePaper(username, new ArrayList<>(paper)); } catch (RuntimeException re) { - // 抛给 UI 处理（但仍返回 Paper） System.err.println("保存试卷时出错: " + re.getMessage()); } - - return new Paper(paper, optionsList, correctIdx); } private static void shuffleArray(String[] arr) { @@ -125,19 +102,13 @@ public class Create { } private static int findIndex(String[] arr, String target) { - for (int i = 0; i < arr.length; i++) { - if (arr[i].equals(target)) { - return i; - } - } + for (int i = 0; i < arr.length; i++) if (arr[i].equals(target)) return i; return 0; } private static String formatNumber(double v) { - if (Math.abs(v - Math.round(v)) < 1e-6) { - return String.valueOf((long) Math.round(v)); - } else { - return String.format("%.3f", v); - } + if (Math.abs(v - Math.round(v)) < 1e-6) return String.valueOf((long) Math.round(v)); + return String.format("%.3f", v); } } +