diff --git a/app.js b/app.js
index 909d5f6..0d3c294 100644
--- a/app.js
+++ b/app.js
@@ -384,13 +384,15 @@ App({
 	
 	//------定时等待某个值,有值才进行运算--------
 	waitfor:function(time,pop_value,func){
+		var n=0;
 		if(!time){
 			time=setInterval(function(){
-				console.log(time);
+				console.log(time);n++;
 				if(pop_value) {
 					clearInterval(time);
 					func();
-				}
+				}				
+				if(n>60) clearInterval(time);
 			},1000);
 		}
 	}