添加查询无数据后的提示

@@ -156,8 +156,13 @@ exports.init = function() {
                             $container = $svc;
                             break;
                     }
-                    for (i = 0; i < len; i++) {
-                        html += Mustache.render(tpl, goods[i]);
+                    if (len === 0) {
+                        //无返回数据
+                        html = '<p class="search-tip">未找到相关搜索结果</p>';
+                    } else {
+                        for (i = 0; i < len; i++) {
+                            html += Mustache.render(tpl, goods[i]);
+                        }
                     }
                     if (nav.reload) {
                         $container.html(html);

@@ -214,4 +214,12 @@ body {
 
 .sub-classify li.chosed .chosed-icon {
     display: inline-block;
+}
+
+.search-tip {
+    color: #ccc;
+    text-align: center;
+    vertical-align: middle;
+    font-size: 28rem / $pxConvertRem;
+    margin-top: 5.5rem;
 }
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