diff --git a/web/index.html b/web/index.html
index e465335..70541ea 100644
--- a/web/index.html
+++ b/web/index.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html lang="zh">
   <head>
-    <meta charset="UTF-8" />
+    <meta charset="UTF-8" >
     <title>amis demo</title>
    <!-- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
     <meta
@@ -58,5 +58,40 @@
 		);
       })();
     </script>
+    
+    <script>
+//luwenjie hualun
+document.oncontextmenu = function(){
+    event.returnValue = false;
+}
+
+      window.addEventListener('mousewheel', function(event){
+        if (event.ctrlKey === true || event.metaKey) {
+              event.preventDefault();
+        }
+      },{ passive: false});
+
+      //firefox
+      window.addEventListener('DOMMouseScroll', function(event){
+          if (event.ctrlKey === true || event.metaKey) {
+                event.preventDefault();
+          }
+      },{ passive: false});
+//+_
+window.onload = function() {
+  document.addEventListener('keydown', function (event) {
+        if ((event.ctrlKey === true || event.metaKey === true)
+            && (event.which === 61 || event.which === 107
+            || event.which === 173 || event.which === 109
+            || event.which === 187  || event.which === 189))
+        {
+            event.preventDefault();
+        }
+    }, false);
+}
+
+
+</script>
+    
   </body>
 </html>
\ No newline at end of file
