diff --git a/app/views/challenges/_skill_form.html.erb b/app/views/challenges/_skill_form.html.erb
index b77e62c77..f8d53061e 100644
--- a/app/views/challenges/_skill_form.html.erb
+++ b/app/views/challenges/_skill_form.html.erb
@@ -21,7 +21,11 @@
   <p class="color-red ml95" style="height: 25px;"><span id="stage_name_notice" style="display: none;"><i class="fa fa-exclamation-circle color-red mr5"></i>知识/技能点不能为空</span></p>
   <div class="prop-notice-info mb10 ml95">
     <ol>
-      <li>学员为参考答案通过了本阶段的评测时将获得技能，否则不能获得技能</li>
+      <% if @st == 0 %>
+        <li>学员为参考答案通过了本阶段的评测时将获得技能，否则不能获得技能</li>
+      <% else %>
+        <li>学员答题正确将获得技能，否则不能获得技能</li>
+      <% end %>
     </ol>
   </div>
 
diff --git a/app/views/games/_choice_question.html.erb b/app/views/games/_choice_question.html.erb
index 000f4eeea..fcba26c7d 100644
--- a/app/views/games/_choice_question.html.erb
+++ b/app/views/games/_choice_question.html.erb
@@ -1,7 +1,7 @@
 <div class="-layout -stretch -fit -vertical centerH">
   <div class="split-panel--second -layout -vertical -flex -relative -bg-black" id="answer">
     <ul id="blacktab_nav">
-      <li id="codetab_nav_1" class="blacktab_hover" onclick="HoverLi_new(1);">
+      <li id="codetab_nav_1" class="blacktab_hover" style="overflow-y: auto;" onclick="HoverLi_new(1);">
         <a href="javascript:void(0);" class="tab_type tab_color" >答题选项</a>
       </li>
     </ul>
diff --git a/app/views/games/_code_actions.html.erb b/app/views/games/_code_actions.html.erb
index ece5c0a42..207228119 100644
--- a/app/views/games/_code_actions.html.erb
+++ b/app/views/games/_code_actions.html.erb
@@ -79,6 +79,10 @@
         for(var i = 0; i < choice.length; i++){
             answer += $(choice[i]).val();
         }
+        if(answer == ""){
+            notice_sure_box("答案不能为空！");
+            return;
+        }
         $("#code_test").html("<a class='task-btn mt8 mr15'>评测中..</a>");
         $.ajax({
             type: "post",