diff --git a/XNSimHtml/components/todo-component.js b/XNSimHtml/components/todo-component.js
index ab27e99..0dbe14c 100644
--- a/XNSimHtml/components/todo-component.js
+++ b/XNSimHtml/components/todo-component.js
@@ -29,9 +29,8 @@ class TodoComponent extends HTMLElement {
             return;
         }
 
-        if (this.isInitialized) {
-            return;
-        }
+        // 先清除所有数据
+        this.clearData();
         
         TodoComponent.isInitializing = true;
         
@@ -1047,6 +1046,19 @@ class TodoComponent extends HTMLElement {
     connectedCallback() {
         this.initialize();
     }
+
+    // 清除所有数据
+    clearData() {
+        this.todos = [];
+        this.selectedProject = null;
+        this.selectedSubproject = null;
+        this.expandedProjects = new Set();
+        this.users = [];
+        this.currentUser = null;
+        this.editingTodo = null;
+        this.isInitialized = false;
+        this.showCompleted = true;
+    }
 }
 
 customElements.define('todo-component', TodoComponent);
\ No newline at end of file
diff --git a/XNSimHtml/main.html b/XNSimHtml/main.html
index 3a43cd0..6f7c088 100644
--- a/XNSimHtml/main.html
+++ b/XNSimHtml/main.html
@@ -413,6 +413,7 @@
                             localStorage.removeItem('userInfo');
                             // 清除所有标签页
                             tabsContainer.clearAllTabs();
+                            
                             // 显示退出成功提示
                             showToast('已安全退出登录');
                             
@@ -689,6 +690,12 @@
                             detail: { user: result.user }
                         });
                         document.dispatchEvent(loginSuccessEvent);
+
+                        // 重新初始化todo-component
+                        const todoComponent = document.querySelector('todo-component');
+                        if (todoComponent) {
+                            todoComponent.initialize();
+                        }
                     } else {
                         showToast(result.message || '登录失败，请检查用户名和密码');
                     }