From d2616af0efe10976021b55ffb6467542eb261c0f Mon Sep 17 00:00:00 2001 From: hnu202326010321 <3602749708@qq.com> Date: Sun, 28 Sep 2025 18:14:37 +0800 Subject: [PATCH] Add Math_new --- src/Math_new | 408 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 408 insertions(+) create mode 100644 src/Math_new diff --git a/src/Math_new b/src/Math_new new file mode 100644 index 0000000..9ec7451 --- /dev/null +++ b/src/Math_new @@ -0,0 +1,408 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace std; + + +// 数学题目基类 +class MathProblem { +protected: + vector generatedProblems;//存储生成过的题目 + + int randInt(int min, int max) {//生成min-max范围的随机整数 + return min + rand() % (max - min + 1); + } + + bool isProblemExists(const string& problem) { + for (size_t i = 0; i < generatedProblems.size(); i++) {//循环，判断题目是否已经存在 + if (generatedProblems[i] == problem) {return true;} + } + return false; + } + +public: + MathProblem() {} + virtual ~MathProblem() {} + + virtual string generateProblem() = 0; + + vector generateProblems(int count) { //题目生成 + vector problems; + int attempts = 0; + const int MAX_ATTEMPTS = 1000; + + while (problems.size() < count && attempts < MAX_ATTEMPTS) { + string problem = generateProblem(); + if (!isProblemExists(problem)) { + problems.push_back(problem); + generatedProblems.push_back(problem); + } + attempts++; + } + return problems; + } + + void clear() { + generatedProblems.clear(); + } +}; + +// 小学题目生成器 +class PrimaryMath : public MathProblem { +private: + char getOperator() { + char operators[] = {'+', '-', '*', '/'}; + return operators[rand() % 4]; + } + + string Expression(int numCount) { + stringstream expr; + for (int i = 0; i < numCount; i++) { + expr << randInt(1, 100); + if (i < numCount - 1) { + expr << " " << getOperator() << " "; + } + } + return expr.str(); + } + + string addParentheses(const string& expr, int numCount) { + if (numCount > 2 && randInt(0, 1)) { + if (numCount == 3) { + if (randInt(0, 1)) { + return "(" + expr + ")"; + } + } else { + stringstream result; + int splitPoint = randInt(1, numCount-1); + result << "("; + for (int i = 0; i < splitPoint; i++) { + result << randInt(1, 100); + if (i < splitPoint - 1) { + result << " " << getOperator() << " "; + } + } + result << ") " << getOperator() << " "; + for (int i = splitPoint; i < numCount; i++) { + result << randInt(1, 100); + if (i < numCount - 1) { + result << " " << getOperator() << " "; + } + } + return result.str(); + } + } + return expr; + } + +public: + string generateProblem() { + int numCount = randInt(2, 5); + stringstream problem; + + string expression = Expression(numCount); + expression = addParentheses(expression, numCount); + problem << expression << " = "; + + return problem.str(); + } +}; + +// 初中题目生成器 +class JuniorMath : public MathProblem { +private: + char getOperator() { + char operators[] = {'+', '-', '*', '/'}; + return operators[rand() % 4]; + } + + string Expression(bool& hasAdvancedOp) { + stringstream part; + if (!hasAdvancedOp && randInt(0, 1)) { + if (randInt(0, 1)) { + part << randInt(1, 10) << "^2"; // 使用^2表示平方 + } else { + part << "√" << randInt(1, 100); + } + hasAdvancedOp = true; + } else { + part << randInt(1, 100); + } + return part.str(); + } + + string addOperator(const string& expr, bool hasAdvancedOp) { + if (!hasAdvancedOp) { + if (randInt(0, 1)) { + return "(" + expr + ")^2"; + } else { + return "√(" + expr + ")"; + } + } + return expr; + } + +public: + string generateProblem() { + int numCount = randInt(2, 5); + stringstream problem; + bool hasAdvancedOp = false; + + for (int i = 0; i < numCount; i++) { + problem << Expression(hasAdvancedOp); + if (i < numCount - 1) { + problem << " " << getOperator() << " "; + } + } + + string expression = problem.str(); + expression = addOperator(expression, hasAdvancedOp); + + stringstream finalProblem; + finalProblem << expression << " = "; + return finalProblem.str(); + } +}; + +// 高中题目生成器 +class SeniorMath : public MathProblem { +private: + char getOperator() { + char operators[] = {'+', '-', '*', '/'}; + return operators[rand() % 4]; + } + + string getTrigFunction() { + string functions[] = {"sin", "cos", "tan"}; + return functions[rand() % 3]; + } + + string Expression(bool& hasTrigOp) { + stringstream part; + if (!hasTrigOp && randInt(0, 1)) { + part << getTrigFunction() << "(" << randInt(1, 100) << ")"; + hasTrigOp = true; + } else { + part << randInt(1, 100); + } + return part.str(); + } + + string addTrigFunction(const string& expr, bool hasTrigOp) { + if (!hasTrigOp) { + return getTrigFunction() + "(" + expr + ")"; + } + return expr; + } + +public: + string generateProblem() { + int numCount = randInt(2, 5); + stringstream problem; + bool hasTrigOp = false; + + for (int i = 0; i < numCount; i++) { + problem << Expression(hasTrigOp); + if (i < numCount - 1) { + problem << " " << getOperator() << " "; + } + } + + string expression = problem.str(); + expression = addTrigFunction(expression, hasTrigOp); + + stringstream finalProblem; + finalProblem << expression << " = "; + return finalProblem.str(); + } +}; + +struct Account { + + string username; + string password; + string type; +}; + +vector accounts; +MathProblem* currentGenerator = NULL; +string nowUserType = ""; +string nowUsername = ""; + +bool Verify(const string& username, const string& password, string& userType); //账号验证函数 +void CreateFolder(const string& username);//创建用户文件夹 +string GetTimestamp();//获取时间戳 +void SaveToFile(const vector& problems, const string& username);//保存题目到文件夹中 +void Login();//用户登录 +void ProblemGeneration_Menu();//题目生成过程菜单 +void TypeSwitching();//类型转换 + + +bool Verify(const string& username, const string& password, string& userType) { + for (size_t i = 0; i < accounts.size(); i++) { + if (accounts[i].username == username && accounts[i].password == password) { //检验账号密码是否正确，正确的话就提取账号类型 + userType = accounts[i].type; + return true; + } + } + return false; +} + +// 创建用户文件夹 +void CreateFolder(const string& username) { + string folderName = username + "_papers"; + string command = "mkdir \"" + folderName + "\" 2>nul"; + system(command.c_str()); +} + +// 获取当前时间戳 +string GetTimestamp() { + time_t now = time(NULL); + struct tm* timeinfo = localtime(&now); + char filename[100]; + strftime(filename, sizeof(filename), "%Y-%m-%d-%H-%M-%S.txt", timeinfo); + return string(filename); +} + +// 保存题目到文件 +void SaveToFile(const vector& problems, const string& username) { + CreateFolder(username); + string filename = GetTimestamp(); + string fullPath = username + "_papers/" + filename; + + cout << "正在保存文件到: " << fullPath << endl; + + ofstream file(fullPath.c_str()); + if (file.is_open()) { + for (size_t i = 0; i < problems.size(); i++) { + file << (i + 1) << ". " << problems[i] << "\n\n"; + } + file.close(); + cout << "题目已成功保存到: " << fullPath << endl; + } else { + cout << "错误：无法创建文件 " << fullPath << endl; + } +} + +// 创建题目生成器 +MathProblem* createGeneratorByType(const string& type) { + if (type == "小学") return new PrimaryMath(); + else if (type == "初中") return new JuniorMath(); + else if (type == "高中") return new SeniorMath(); + return NULL; +} + +// 处理类型切换 +void TypeSwitching() { + while(true){ + cout << "如需切换类型，请输入\"切换为XX\"（XX为小学、初中、高中），直接按回车继续当前模式: "; + + string input; + getline(cin, input); + if (input.empty()) { + cout << "继续使用当前" << nowUserType << "出题模式" << endl; + return; + } + string newType = input.substr(6); + + if (newType == "小学" || newType == "初中" || newType == "高中") { + nowUserType = newType; + if (currentGenerator) { + delete currentGenerator; + currentGenerator = createGeneratorByType(newType); + } + + cout << "已切换为" << newType << "出题模式" << endl; + return; + } else { + cout << "请输入小学、初中和高中三个选项中的一个" << endl; + continue; + } + } +} + +// 处理用户登录 +void Login() { + string username, password; + + while (true) { + cout << "===== 中小学数学卷子自动生成程序 =====" << endl; + cout << "请输入用户名和密码（用空格隔开）: "; + cin >> username >> password; + + string userType; + if (Verify(username, password, userType)) { + nowUsername = username; + nowUserType = userType; + + if (currentGenerator) delete currentGenerator; + currentGenerator = createGeneratorByType(userType); + + cout << "当前选择为" << userType << "出题" << endl; + break; + } else { + cout << "请输入正确的用户名、密码" << endl; + } + } +} + +// 处理题目生成过程 +void ProblemGeneration_Menu() { + while (true) { + cout << "准备生成" << nowUserType << "数学题目，请输入生成题目数量（10-30，-1退出）: "; + int count; + cin >> count; + + if (count == -1) { + if (currentGenerator) currentGenerator->clear(); + cout<< "已退出程序，请重新登录" < 30) { + cout << "题目数量应在10-30之间" << endl; + continue; + } + + vector problems = currentGenerator->generateProblems(count); + SaveToFile(problems, nowUsername); + cin.ignore(numeric_limits::max(), '\n'); + // 类型切换功能调用 + TypeSwitching(); + } +} + +// 主函数 +int main() { + srand(time(NULL)); + accounts.push_back((Account){"张三1", "123", "小学"}); + accounts.push_back((Account){"张三2", "123", "小学"}); + accounts.push_back((Account){"张三3", "123", "小学"}); + + accounts.push_back((Account){"李四1", "123", "初中"}); + accounts.push_back((Account){"李四2", "123", "初中"}); + accounts.push_back((Account){"李四3", "123", "初中"}); + + accounts.push_back((Account){"王五1", "123", "高中"}); + accounts.push_back((Account){"王五2", "123", "高中"}); + accounts.push_back((Account){"王五3", "123", "高中"}); + + + Login(); + ProblemGeneration_Menu(); + + if (currentGenerator) delete currentGenerator; + + cout << "程序结束，感谢使用！" << endl; + return 0; +} \ No newline at end of file -- 2.34.1