注册取消平台设置

@@ -266,7 +266,7 @@ $(document).ready(function () {
                                 'hospital_id':hospital_id,
                             },
                             success:function(res){
-                                office='';
+                                office.length = 0;
                                 for(var i=0;i<res.data.length;i++){
                                     var one=new Object();
                                     one.value=res.data[i].office_id;