diff --git a/daima b/daima
index e69de29..d437315 100644
--- a/daima
+++ b/daima
@@ -0,0 +1,90 @@
+}
+
+// 函数定义
+void init(void)
+{
+    puts("程序启动");
+}
+void quit(void)
+{
+    puts("程序退出");
+    exit(EXIT_SUCCESS);
+}
+void display_menu(void)
+{
+    printf("\n%d 读取 | %d 保存 | %d 打印 | %d 查询 | %d 添加\n%d 修改 | %d 删除 | %d 排序 | %d 图表 | %d 退出\n\n", CMD_READ, CMD_SAVE, CMD_PRINT, CMD_QUERY, CMD_INSERT, CMD_UPDATE, CMD_DELETE, CMD_SORT, CMD_CHART, CMD_QUIT);
+}
+int make_choice(void)
+{
+    int c;     // 用户输入
+    int n = 0; // 正确读入的数据项个数
+    while (n == 0)
+    {
+        printf("请选择：");
+        n = scanf("%d", &c); // 尝试读入整数 c
+        scanf("%*[^\n]");    // 跳过一行中剩余的字符
+    }
+    return c;
+}
+
+//查询
+void query_data(void)
+{
+    int num;
+    printf("输入学生学号： ");
+    scanf("%d", &num);
+    int f = -1;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = i;
+            break;
+        }
+    }
+    if (f == -1)
+    {
+        printf("学生不存在");
+    }
+    else
+    {
+        printf("学生学号：%d\n", stu[f].number);
+        printf("学生姓名：%s\n", stu[f].name);
+        printf("学生成绩：%d\n", stu[f].score);
+    }
+}
+
+//打印
+void print_data(void)
+{
+    printf("NUMBER  |  NAME                score\n");
+    for (int i = 0; i < num_parts; i++)
+    {
+        printf("%d  |  %s                    %d\n", stu[i].number, stu[i].name, stu[i].score);
+    }
+}
+
+//添加
+void add_data(void)
+{
+    int num;
+    printf("输入学生学号：");
+    scanf("%d", &num);
+    int f = 0;
+    for (int i = 0; i < num_parts; i++)
+    {
+        if (num == stu[i].number)
+        {
+            f = 1;
+            break;
+        }
+    }
+    if (f == 0)
+    {
+        stu[num_parts].number = num;
+        printf("输入学生姓名：");
+        scanf("%s", &stu[num_parts].name);
+        printf("输入学生成绩：");
+        scanf("%d", &stu[num_parts].score);
+        num_parts++;
+        printf("学生 %d 添加成功\n", num);
\ No newline at end of file