diff --git a/_server/blockly/MotaAction.g4 b/_server/blockly/MotaAction.g4
index a010a7da..29c55899 100644
--- a/_server/blockly/MotaAction.g4
+++ b/_server/blockly/MotaAction.g4
@@ -1398,6 +1398,7 @@ ActionParser.prototype.parseAction = function() {
         data.text,this.next]);
       break;
     case "show": // 显示
+      data.loc=data.loc||[];
       if (!(data.loc[0] instanceof Array))
         data.loc = [data.loc];
       var x_str=[],y_str=[];
diff --git a/_server/data.comment.js b/_server/data.comment.js
index bc9535d0..83bcb8a9 100644
--- a/_server/data.comment.js
+++ b/_server/data.comment.js
@@ -151,12 +151,12 @@ data_comment_c456ea59_6018_45ef_8bcc_211a24c627dc =
                                 "constants": {
                                     "_leaf": true,
                                     "_type": "textarea",
-                                    "_data": "初始永久道具个数，例如初始送手册可以写 {'book': 1}"
+                                    "_data": "初始永久道具个数，例如初始送手册可以写 {\"book\": 1}"
                                 },
                                 "tools": {
                                     "_leaf": true,
                                     "_type": "textarea",
-                                    "_data": "初始消耗道具个数，例如初始有两破可以写 {'pickaxe': 2}"
+                                    "_data": "初始消耗道具个数，例如初始有两破可以写 {\"pickaxe\": 2}"
                                 }
                             }
                         },