题库管理。管理员对试题信息的增、删、改、查、导入、导出管理。试题包括单选题、多选题和判断题3种题型。选择题包括题干、选项A、选项B、选项C、选项D、答案、题目解析等。判断题包括题干、选项A、选项B、答案、题目解析等。Java代码

以下是一份简单的Java代码，实现了题库管理系统的增删改查功能：

import java.util.ArrayList;
import java.util.Scanner;

public class Question {
    private String questionType; // 题目类型，单选、多选、判断
    private String question; // 题目内容
    private ArrayList<String> options; // 选项
    private String answer; // 答案
    private String analysis; // 解析

    public Question(String questionType, String question, ArrayList<String> options, String answer, String analysis) {
        this.questionType = questionType;
        this.question = question;
        this.options = options;
        this.answer = answer;
        this.analysis = analysis;
    }

    public String getQuestionType() {
        return questionType;
    }

    public String getQuestion() {
        return question;
    }

    public ArrayList<String> getOptions() {
        return options;
    }

    public String getAnswer() {
        return answer;
    }

    public String getAnalysis() {
        return analysis;
    }

    public void setQuestion(String question) {
        this.question = question;
    }

    public void setOptions(ArrayList<String> options) {
        this.options = options;
    }

    public void setAnswer(String answer) {
        this.answer = answer;
    }

    public void setAnalysis(String analysis) {
        this.analysis = analysis;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        ArrayList<Question> questionList = new ArrayList<>();
        while (true) {
            System.out.println("请选择操作：1.新增 2.删除 3.修改 4.查看 5.导入 6.导出 7.退出");
            int option = scanner.nextInt();
            if (option == 1) {
                System.out.println("请输入题目类型（单选/多选/判断）：");
                String questionType = scanner.next();
                System.out.println("请输入题目内容：");
                String question = scanner.next();
                ArrayList<String> options = new ArrayList<>();
                System.out.println("请输入选项，每个选项占一行，输入#结束：");
                while (true) {
                    String optionContent = scanner.next();
                    if (optionContent.equals("#")) {
                        break;
                    }
                    options.add(optionContent);
                }
                System.out.println("请输入答案：");
                String answer = scanner.next();
                System.out.println("请输入解析：");
                String analysis = scanner.next();
                Question newQuestion = new Question(questionType, question, options, answer, analysis);
                questionList.add(newQuestion);
                System.out.println("添加成功！");
            } else if (option == 2) {
                System.out.println("请输入要删除的题目内容：");
                String question = scanner.next();
                boolean isDeleted = false;
                for (Question q : questionList) {
                    if (q.getQuestion().equals(question)) {
                        questionList.remove(q);
                        isDeleted = true;
                        break;
                    }
                }
                if (isDeleted) {
                    System.out.println("删除成功！");
                } else {
                    System.out.println("未找到该题目！");
                }
            } else if (option == 3) {
                System.out.println("请输入要修改的题目内容：");
                String question = scanner.next();
                boolean isModified = false;
                for (Question q : questionList) {
                    if (q.getQuestion().equals(question)) {
                        System.out.println("请输入新的题目类型（单选/多选/判断）：");
                        String questionType = scanner.next();
                        q.setQuestionType(questionType);
                        System.out.println("请输入新的题目内容：");
                        String newQuestion = scanner.next();
                        q.setQuestion(newQuestion);
                        ArrayList<String> options = new ArrayList<>();
                        System.out.println("请输入新的选项，每个选项占一行，输入#结束：");
                        while (true) {
                            String optionContent = scanner.next();
                            if (optionContent.equals("#")) {
                                break;
                            }
                            options.add(optionContent);
                        }
                        q.setOptions(options);
                        System.out.println("请输入新的答案：");
                        String answer = scanner.next();
                        q.setAnswer(answer);
                        System.out.println("请输入新的解析：");
                        String analysis = scanner.next();
                        q.setAnalysis(analysis);
                        isModified = true;
                        break;
                    }
                }
                if (isModified) {
                    System.out.println("修改成功！");
                } else {
                    System.out.println("未找到该题目！");
                }
            } else if (option == 4) {
                for (Question q : questionList) {
                    System.out.println("类型：" + q.getQuestionType());
                    System.out.println("内容：" + q.getQuestion());
                    System.out.println("选项：");
                    for (String option : q.getOptions()) {
                        System.out.println(option);
                    }
                    System.out.println("答案：" + q.getAnswer());
                    System.out.println("解析：" + q.getAnalysis());
                    System.out.println("-------------------");
                }
            } else if (option == 5) {
                // TODO：导入题目
            } else if (option == 6) {
                // TODO：导出题目
            } else if (option == 7) {
                System.out.println("谢谢使用！");
                break;
            } else {
                System.out.println("请输入正确的操作编号！");
            }
        }
    }
}

以上代码只是一个简单的示例，实际上还需要考虑更多的功能和异常情况。例如，在输入选项时，需要对输入的选项进行合法性检查；在删除题目时，需要考虑题目不存在的情况；在导入和导出时，需要对文件进行读写操作等。