diff --git a/main.c b/main.c
new file mode 100644
index 0000000..faa38da
--- /dev/null
+++ b/main.c
@@ -0,0 +1,34 @@
+//
+// Created by zhang on 2024/12/8.
+//
+#include <stdio.h>
+#include <stdbool.h>
+#include <windows.h>
+#include "function.h"
+#include "myerror.h"
+#include "extern.h"
+
+int main() {
+    SetConsoleOutputCP(65001);
+    int isStudent;
+    while (true) {
+        fprintf(stdout, "欢迎进入口算系统！\n\n输入1以登录\n输入2以注册");
+        int x;
+        scanf("%d", &x);
+        if (x == 1) {
+            isStudent = Login();
+            if (isStudent == 1 || isStudent == 0)break;
+            if (isStudent == -1)continue;
+        } else if (x == 2) {
+            //UserSignin();
+            clear();
+        } else {
+            //Error_Invalid_input();
+        }
+    }
+    if (isStudent) {
+        //StudentsDesktop();
+    } else {
+        //TeachersDesktop();
+    }
+}