fixbug Set explode tid

@@ -168,7 +168,7 @@ App({
                             key:key,
                             success:(ca)=>{
                                 //console.log('obHide',ca.data.timeout,time);
-                                if(ca.data.timeout && ca.data.timeout<time){
+                                if(ca.data.timeout && ca.data.timeout<time && ca.data.timeout!=-1){
                                     wx.removeStorage({key:key})
                                 }
                             }

@@ -279,8 +279,11 @@ Page({
                 buttonhide: true,
             })
             let form = this.data.form;
-            let tid= new Set(form.tid);//tid 去重
-            form.tid = [...tid].toString();
+            console.log('typeof form.tid',typeof form.tid);
+            if(typeof form.tid=='object'){
+                let tid= new Set(form.tid);//tid 去重
+                form.tid = [...tid].toString();
+            }
             if(!form.tid){
                 return util.toast('请选择桌子','none');
             }