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        #define _CRT_SECURE_NO_WARNINGS
        #include 
    
     
        #include 
     
      
        #include 
      
       
        #include 
       
        
        #include 
        
         
        // 生成四则运算题目
        void giveQuestion() {
            FILE* fp = fopen("test.txt", "w");
            if (fp == NULL) {
                printf("文件打开失败");
                return;
            }
            srand((size_t)time(NULL));
            for (int i = 0; i < 10; i++) {
                int num1 = rand() % 100 + 1;
                int num2 = rand() % 100 + 1;
                char ch = symbol[rand() % 4];
                
                char buf[64] = {0};
                sprintf(buf, "%d %c %d=\n", num1, ch, num2);
                fputs(buf, fp);
            }
            fclose(fp);
            printf("生成成功！\n");
        }
        // 解答四则运算题目
        void answerQuestion() {
            FILE* fp = fopen("test.txt", "r");
            if (fp == NULL) {
                printf("文件打开失败");
            }
            FILE* fp1 = fopen("test1.txt", "w");
            if (fp1 == NULL) {
                printf("文件打开失败");
            }
            while (!feof(fp)) {
                char buf[32] = {0};
                char* result = fgets(buf, sizeof(buf), fp);
                if (result == NULL) {
                    break;
                }
                int num1, num2;
                char ch;
                sscanf(buf, "%d %c %d", &num1, &ch, &num2);
                int ret = 0;
                if (ch == '+') {
                    ret = num1 + num2;
                } else if (ch == '-') {
                    ret = num1 - num2;
                } else if (ch == '*') {
                    ret = num1 * num2;
                } else if (ch == '/') {
                    ret = num1 / num2;
                }
                char buf1[32] = {0};
                sprintf(buf1, "%d %c %d=%d\n", num1, ch, num2, ret);
                fputs(buf1, fp1);
            }
            fclose(fp1);
            fclose(fp);
            printf("解答成功！\n");
        }
        int main() {
            giveQuestion();
            answerQuestion();
            return 0;
        }
    
        
       
      
     
    
    
   

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