diff --git a/app.js b/app.js
index 90f5a8b..9a126d6 100644
--- a/app.js
+++ b/app.js
@@ -395,6 +395,23 @@ App({
 				if(n>15) clearInterval(page.data[key]);
 			},1000);
 		}
+	},
+	
+	
+	//------定时等待某个值,有值才进行运算--------
+	waitfor2:function(page,key,pop_value_key,func){
+		var n=0;
+		if(!page.data[key]){
+			page.data[key]=setInterval(function(){
+				console.log(page.data[key]);n++;
+				if(page.data[pop_value_key]) {
+					clearInterval(page.data[key]);
+					func();
+				}				
+				if(n>15) clearInterval(page.data[key]);
+			},1000);
+		}
 	}
+	
 
 });