diff --git a/header.html b/header.html
index 86cd8ef3..a3335c2e 100644
--- a/header.html
+++ b/header.html
@@ -1,8 +1,11 @@
 <div class="nav_menu">
     <a class="menu_item_href" href="#"><img class="mainicon" src="./img/icon.svg" />568Tools&nbsp;在线工具箱</a>
     <p class="menu_item_href">|</p>
-    <div class="menu_item"><span>分类</span>
-        <div id="nav" class="menu_child"><!-- nav_html的插入位置（包含初始化、插入和后补） --></div>
+    <div class="menu_item"><span>操作</span>
+        <div id="nav" class="menu_child">
+            <a href="https://Tools.pj568.eu.org/">回到主页</a>
+            <a href="#" onclick="javascript:history.back(-1);">尝试返回</a>
+        </div>
     </div>
     <p class="menu_item_href">|</p>
     <a class="menu_item_href" href="https://Tools.pj568.eu.org/license">许可证</a>
@@ -20,4 +23,4 @@
             <path d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"></path>
         </svg>
     </a>
-</div>
\ No newline at end of file
+</div>