fix bug

apps/classroom/Tpl/default/Index/search_w3g.html

@@ -177,7 +177,7 @@
 				    <span class="search_hot_title text_12_400 color_999999">历史搜索：</span>
 				    <span class="search_hot_title text_12_400 color_999999">历史搜索：</span>
 					<div class="layout_h_wrap search_hot_title_flow">
 					<div class="layout_h_wrap search_hot_title_flow">
 						<div v-for="ck in cacheKeyWorlds" @click="onHotKeyword(ck)" class="search_flex_item layout_center">
 						<div v-for="ck in cacheKeyWorlds" @click="onHotKeyword(ck)" class="search_flex_item layout_center">
-							<span class="text_14_400 color_999999">{{ck}}}</span>
+							<span class="text_14_400 color_999999">{{ck}}</span>
 						</div>
 						</div>
 					</div>
 					</div>
 				</div>
 				</div>