diff --git a/public/javascripts/jupyter.js b/public/javascripts/jupyter.js
index 50541f6e7..021d46a2e 100644
--- a/public/javascripts/jupyter.js
+++ b/public/javascripts/jupyter.js
@@ -2,20 +2,15 @@
 //guange 2019.12.18
 
 
-$(function(){
-  console.log("educoder jupyter js init");
-	runEvery10Sec();
-})
-
 $(function(){
 	console.log("开始发送消息了");
-	window.parent.postMessage('jupytermessage','*');
-
+	runEvery10Sec();
 })
 
 function runEvery10Sec() {
 	// 1000 * 10 = 10 秒钟
 	console.log("每隔10秒中一次runEvery10Sec");
+	window.parent.postMessage('jupytermessage','*');
 	setTimeout( runEvery10Sec, 1000 * 10 );
 
 }