diff --git a/app/templates/shixun_work/shixun_work.html.erb b/app/templates/shixun_work/shixun_work.html.erb
index 76a269f3f..fa2ad8101 100644
--- a/app/templates/shixun_work/shixun_work.html.erb
+++ b/app/templates/shixun_work/shixun_work.html.erb
@@ -240,25 +240,27 @@
     window.onload = function() {
       console.debug("window.onload");
 
-      <% @games.map(&:id).each do |game_id| %>
+      <% if @games.present? %>
+        <% @games.map(&:id).each do |game_id| %>
         var ele = document.getElementById("content_show_<%= game_id %>");
         if (ele) {
-          var ide = CodeMirror.fromTextArea(ele, {
-            lineNumbers: true,
-            theme: "default",
-            // extraKeys: {"Ctrl-Q": "autocomplete"}, // 快捷键
-            indentUnit: 4, //代码缩进为一个tab的距离
-            matchBrackets: true,
-            autoRefresh: true,
-            smartIndent: true,//智能换行
-            styleActiveLine: true,
-            lineWrapping: true,
-            lint: true,
-            readOnly: "nocursor"
-          });
+            var ide = CodeMirror.fromTextArea(ele, {
+                lineNumbers: true,
+                theme: "default",
+                // extraKeys: {"Ctrl-Q": "autocomplete"}, // 快捷键
+                indentUnit: 4, //代码缩进为一个tab的距离
+                matchBrackets: true,
+                autoRefresh: true,
+                smartIndent: true,//智能换行
+                styleActiveLine: true,
+                lineWrapping: true,
+                lint: true,
+                readOnly: "nocursor"
+            });
 
-          ide.setSize("auto", ide.lineCount() * 18);
+            ide.setSize("auto", ide.lineCount() * 18);
         }
+        <% end %>
       <% end %>