调整

public/react/src/modules/courses/coursesDetail/CoursesLeftNav.js

@@ -1172,7 +1172,7 @@ class Coursesleftnav extends Component{
 																						 item.type==="attachment"?<i className={this.props.location.pathname===item.category_url?"color-blue iconfont icon-ziyuan mr10 fl":"iconfont icon-ziyuan mr10 fl"}  ></i>:
 																							 item.type==="board"?<i className={this.props.location.pathname===item.category_url?"color-blue iconfont icon-taolun mr10 fl":"iconfont icon-taolun mr10 fl"}  ></i>:
 																								 item.type==="course_group"?<i className={this.props.location.pathname===item.category_url?"color-blue iconfont icon-fenban mr10 fl":"iconfont icon-fenban mr10 fl"}  ></i>:
-														 												item.type==="statistics"?<i className={this.props.location.pathname===item.category_url?"color-blue iconfont icon-tongji mr10 fl":"iconfont icon-tongji mr10 fl"}  ></i>
+														 												item.type==="statistics"?<i className={this.props.location.pathname===item.category_url?"color-blue iconfont icon-tongji mr10 fl":"iconfont icon-tongji mr10 fl"}  ></i>:""
 													 }
 
 													 <span className={this.props.location.pathname===item.category_url?"color-blue task-hide activity-left-name":"task-hide activity-left-name"} onClick={(e)=>this.selectnavid(e,key,item.id,item.type,item.category_url)}>{item.name}</span>