modified days and hours for nil data

app/views/quality_analysis/_show.html.erb

@@ -45,11 +45,11 @@
   <div class="analysis-block mt10 mb40 f14">
     <div><span class="fontGrey3 mr30">技术债务</span>
       <span class="w70 pInline">
-        <% if @complexity["msr"][8].nil? %>
+        <% if @complexity["msr"][8].nil? || @complexity["msr"][8]["frmt_val"] == "0" %>
             0
         <% else %>
             <%= /[0-9]*/.match(@complexity["msr"][8]["frmt_val"])[0] %>天
-            <%= / [0-9]*/.match(@complexity["msr"][8]["frmt_val"]) %>小时
+            <%= / [0-9]*/.match(@complexity["msr"][8]["frmt_val"]).nil? ? 0 : / [0-9]*/.match(@complexity["msr"][8]["frmt_val"]) %>小时
         <% end %>
       </span>
       <span class="fontGrey2"><a class="linkBlue2" target="_blank" href="<%= @sonar_address %>/drilldown/measures/<%= @resource_id %>?metric=sqale_index">查看详情</a></span></div>