diff --git a/_server/editor_file.js b/_server/editor_file.js
index 711a1bb1..82247ee0 100644
--- a/_server/editor_file.js
+++ b/_server/editor_file.js
@@ -104,6 +104,7 @@ editor_file = function (editor, callback) {
             }
         datastr = datastr.concat(['\n}']);
         datastr = datastr.join('');
+        alertWhenCompress();
         fs.writeFile(filename, encode(datastr), 'base64', function (err, data) {
             callback(err);
         });
@@ -717,9 +718,17 @@ editor_file = function (editor, callback) {
         }))
     }
 
+    var alertWhenCompress = function(){
+        if(editor.useCompress===true){
+            editor.useCompress=null;
+            setTimeout("alert('当前游戏使用的是压缩文件,修改完成后请重新压缩')",1000)
+        }
+    }
+
     var saveSetting = function (file, actionList, callback) {
         //console.log(file);
         //console.log(actionList);
+        alertWhenCompress();
 
         if (file == 'icons') {
             actionList.forEach(function (value) {
diff --git a/_server/fs.js b/_server/fs.js
index 59bd1441..c95065d3 100644
--- a/_server/fs.js
+++ b/_server/fs.js
@@ -2,37 +2,44 @@
     fs = {};
 
 
+    var _isset = function (val) {
+        if (val == undefined || val == null || (typeof val=='number' && isNaN(val))) {
+            return false;
+        }
+        return true
+    }
+
     var _http = function (type, url, formData, success, error, mimeType, responseType) {
         var xhr = new XMLHttpRequest();
         xhr.open(type, url, true);
-        if (core.isset(mimeType))
+        if (_isset(mimeType))
             xhr.overrideMimeType(mimeType);
-        if (core.isset(responseType))
+        if (_isset(responseType))
             xhr.responseType = responseType;
         xhr.onload = function(e) {
             if (xhr.status==200) {
-                if (core.isset(success)) {
+                if (_isset(success)) {
                     success(xhr.response);
                 }
             }
             else {
-                if (core.isset(error))
+                if (_isset(error))
                     error("HTTP "+xhr.status);
             }
         };
         xhr.onabort = function () {
-            if (core.isset(error))
+            if (_isset(error))
                 error("Abort");
         }
         xhr.ontimeout = function() {
-            if (core.isset(error))
+            if (_isset(error))
                 error("Timeout");
         }
         xhr.onerror = function() {
-            if (core.isset(error))
+            if (_isset(error))
                 error("Error on Connection");
         }
-        if (core.isset(formData))
+        if (_isset(formData))
             xhr.send(formData);
         else xhr.send();
     }
diff --git a/editor.html b/editor.html
index f83105d0..c21f70bd 100644
--- a/editor.html
+++ b/editor.html
@@ -429,6 +429,8 @@ if (location.protocol.indexOf("http")!=0) {
 </script>
 <script src='_server/editor.js'></script>
 <script>
+    var useCompress = main.useCompress;
+    main.useCompress = false;
     main.init('editor', function () {
         editor.init(function () {
             editor.pos = {x: 0, y: 0};
@@ -442,6 +444,8 @@ if (location.protocol.indexOf("http")!=0) {
             editor.mode.listen();
             editor_multi = editor_multi();
             editor_blockly = editor_blockly();
+            editor.useCompress = useCompress;
+            delete(useCompress);
         });
     });