第一版提交，答题功能OK，题库管理待完善

src/contexts/QuizContext.tsx

@@ -0,0 +1,65 @@
+import { createContext, useContext, useState, ReactNode } from 'react';
+
+interface Question {
+  id: string;
+  content: string;
+  type: 'single' | 'multiple' | 'judgment' | 'text';
+  options?: string[];
+  answer: string | string[];
+  score: number;
+  createdAt: string;
+  category?: string;
+}
+
+interface QuizContextType {
+  questions: Question[];
+  setQuestions: (questions: Question[]) => void;
+  currentQuestionIndex: number;
+  setCurrentQuestionIndex: (index: number) => void;
+  answers: Record<string, string | string[]>;
+  setAnswer: (questionId: string, answer: string | string[]) => void;
+  clearQuiz: () => void;
+}
+
+const QuizContext = createContext<QuizContextType | undefined>(undefined);
+
+export const QuizProvider = ({ children }: { children: ReactNode }) => {
+  const [questions, setQuestions] = useState<Question[]>([]);
+  const [currentQuestionIndex, setCurrentQuestionIndex] = useState(0);
+  const [answers, setAnswers] = useState<Record<string, string | string[]>>({});
+
+  const setAnswer = (questionId: string, answer: string | string[]) => {
+    setAnswers(prev => ({
+      ...prev,
+      [questionId]: answer
+    }));
+  };
+
+  const clearQuiz = () => {
+    setQuestions([]);
+    setCurrentQuestionIndex(0);
+    setAnswers({});
+  };
+
+  return (
+    <QuizContext.Provider value={{
+      questions,
+      setQuestions,
+      currentQuestionIndex,
+      setCurrentQuestionIndex,
+      answers,
+      setAnswer,
+      clearQuiz
+    }}>
+      {children}
+    </QuizContext.Provider>
+  );
+};
+
+export const useQuiz = () => {
+  const context = useContext(QuizContext);
+  if (!context) {
+    throw new Error('useQuiz必须在QuizProvider内使用');
+  }
+  return context;
+};