diff --git a/www/cgi-bin/c_mysql_user_pwd.c b/www/cgi-bin/c_mysql_user_pwd.c
index 1a2e5a6..f99c3bd 100755
--- a/www/cgi-bin/c_mysql_user_pwd.c
+++ b/www/cgi-bin/c_mysql_user_pwd.c
@@ -8,23 +8,20 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-int main()
-{
+int main() {
     // 连接到 MySQL 数据库
     MYSQL *conn;
     MYSQL_RES *res;
     MYSQL_ROW row;
 
     conn = mysql_init(NULL);
-    if (conn == NULL)
-    {
+    if (conn == NULL) {
         fprintf(stderr, "mysql_init() failed\n");
         exit(1);
     }
 
     if (mysql_real_connect(conn, "localhost", "root", "root", "router", 3306,
-                           NULL, 0) == NULL)
-    {
+                           NULL, 0) == NULL) {
         fprintf(stderr, "mysql_real_connect() failed\n");
         mysql_close(conn);
         exit(1);
@@ -36,8 +33,7 @@ int main()
 
     // 解析 JSON 数据
     cJSON *p = cJSON_Parse(request_data);
-    if (p == NULL)
-    {
+    if (p == NULL) {
         fprintf(stderr, "Error parsing JSON data\n");
         mysql_close(conn);
         return 1;
@@ -48,8 +44,7 @@ int main()
     cJSON *pwd = cJSON_GetObjectItemCaseSensitive(p, "pwd");
 
     if (user == NULL || pwd == NULL || !cJSON_IsString(user) ||
-        !cJSON_IsString(pwd))
-    {
+        !cJSON_IsString(pwd)) {
         fprintf(stderr,
                 "Error getting username and/or password from JSON data\n");
         cJSON_Delete(p);
@@ -65,8 +60,7 @@ int main()
     sprintf(query, "SELECT * FROM users WHERE username='%s' AND password='%s'",
             username_from_frontend, password_from_frontend);
 
-    if (mysql_query(conn, query))
-    {
+    if (mysql_query(conn, query)) {
         fprintf(stderr, "SELECT query failed. Error: %s\n", mysql_error(conn));
         cJSON_Delete(p);
         mysql_close(conn);
@@ -74,8 +68,7 @@ int main()
     }
 
     res = mysql_store_result(conn);
-    if (res == NULL)
-    {
+    if (res == NULL) {
         fprintf(stderr, "mysql_store_result() failed\n");
         cJSON_Delete(p);
         mysql_close(conn);
@@ -84,13 +77,10 @@ int main()
 
     cJSON *result_json = cJSON_CreateObject();
 
-    if ((row = mysql_fetch_row(res)))
-    {
+    if ((row = mysql_fetch_row(res))) {
         cJSON_AddNumberToObject(result_json, "code", 0);
         cJSON_AddStringToObject(result_json, "nickname", "admin");
-    }
-    else
-    {
+    } else {
         cJSON_AddNumberToObject(result_json, "code", 1);
         cJSON_AddStringToObject(result_json, "msg", "用户名或口令错误");
     }
@@ -110,3 +100,5 @@ int main()
 
     return 0;
 }
+
+// 注释
\ No newline at end of file
diff --git a/www/cgi-bin/creat_table.sql b/www/cgi-bin/creat_table.sql
index e6b09c3..5f21c93 100755
--- a/www/cgi-bin/creat_table.sql
+++ b/www/cgi-bin/creat_table.sql
@@ -2,7 +2,7 @@
 CREATE database if NOT EXISTS router;
 USE router;
 -- 创建用户登录密码表
-CREATE TABLE users (
+CREATE TABLE if not exists users (
     id INT AUTO_INCREMENT PRIMARY KEY,
     username VARCHAR(50) NOT NULL,
     password VARCHAR(255) NOT NULL
@@ -10,10 +10,13 @@ CREATE TABLE users (
 INSERT INTO users (username, password)
 VALUES ('admin', 'admin');
 -- 创建ARP映射表
-CREATE TABLE ip_mac(
+CREATE TABLE if not exists ip_mac(
     id INT AUTO_INCREMENT PRIMARY KEY,
     ip VARCHAR(50) NOT NULL,
     mac VARCHAR(50) NOT NULL
 );
 -- 创建防火墙表
-CREATE TABLE ip_fw(ip VARCHAR(50) NOT NULL);
\ No newline at end of file
+CREATE TABLE if not exists ip_fw(
+    id INT AUTO_INCREMENT PRIMARY KEY,
+    ip VARCHAR(50) NOT NULL
+);
\ No newline at end of file