diff --git a/server/routers/back-new/shared/usersDb.js b/server/routers/back-new/shared/usersDb.js
index 0b888ef..fcc21db 100644
--- a/server/routers/back-new/shared/usersDb.js
+++ b/server/routers/back-new/shared/usersDb.js
@@ -1,5 +1,5 @@
 let users = [
-  { id: 1, username: 'test', password: '123456', email: 'test@example.com', firstName: 'Test', lastName: 'User' }
+  { id: 1, username: 'test', password: '123456', email: 'test@example.com', firstName: 'Test', lastName: 'User', bio: '', location: '', website: '' }
 ];
 let nextId = 2;
 
@@ -8,8 +8,8 @@ exports.findUser = (username, email, password) =>
 
 exports.findById = (id) => users.find(u => u.id === id);
 
-exports.addUser = ({ username, password, email, firstName, lastName }) => {
-  const newUser = { id: nextId++, username, password, email, firstName, lastName };
+exports.addUser = ({ username, password, email, firstName, lastName, bio = '', location = '', website = '' }) => {
+  const newUser = { id: nextId++, username, password, email, firstName, lastName, bio, location, website };
   users.push(newUser);
   return newUser;
 };
@@ -17,4 +17,12 @@ exports.addUser = ({ username, password, email, firstName, lastName }) => {
 exports.exists = (username, email) =>
   users.some(u => u.username === username || u.email === email);
 
-exports.getAll = () => users; 
\ No newline at end of file
+exports.getAll = () => users;
+
+// 新增：更新用户信息
+exports.updateUser = (id, update) => {
+  const user = users.find(u => u.id === id);
+  if (!user) return null;
+  Object.assign(user, update);
+  return user;
+}; 
\ No newline at end of file